PLANTS HAVING INCREASED TOLERANCE TO HERBICIDES

Information

  • Patent Application
  • 20230175005
  • Publication Number
    20230175005
  • Date Filed
    October 24, 2022
    2 years ago
  • Date Published
    June 08, 2023
    a year ago
Abstract
The present invention refers to a method for controlling undesired vegetation at a plant cultivation site, the method comprising the steps of providing, at said site, a plant that comprises at least one nucleic acid comprising a nucleotide sequence encoding protoporphyrinogen oxidase (PPO) which is resistant or tolerant to a PPO-inhibiting herbicide by applying to said site an effective amount of said herbicide. The invention further refers to plants comprising wild-type or mutated PPO enzymes, and methods of obtaining such plants.
Description
INCORPORATION BY REFERENCE OF MATERIAL SUBMITTED ELECTRONICALLY

The Sequence Listing, which is a part of the present disclosure, is submitted concurrently with the specification as a text file. The name of the text file containing the Sequence Listing is “1712288B_Seqlisting.XML”, which was created on Oct. 4, 2022 and is 804,387 bytes in size. The subject matter of the Sequence Listing is incorporated herein in its entirety by reference.


FIELD OF THE INVENTION

The present invention relates in general to methods for conferring on plants agricultural level tolerance to herbicides. Particularly, the invention refers to plants having an increased tolerance to PPO-inhibiting herbicides. More specifically, the present invention relates to methods and plants obtained by mutagenesis and cross-breeding and transformation that have an increased tolerance to PPO-inhibiting herbicides.


BACKGROUND OF THE INVENTION

Herbicides that inhibit protoporphyrinogen oxidase (hereinafter referred to as Protox or PPO; EC:1.3.3.4), a key enzyme in the biosynthesis of protoporphyrin IX, have been used for selective weed control since the 1960s. PPO catalyzes the last common step in chlorophyll and heme biosynthesis which is the oxidation of protoporphyrinogen IX to protoporphyrin IX. (Matringe et al. 1989. Biochem. 1. 260: 231). PPO-inhibiting herbicides include many different structural classes of molecules (Duke et al. 1991. Weed Sci. 39: 465; Nandihalli et al. 1992. Pesticide Biochem. Physiol. 43: 193; Matringe et al. 1989. FEBS Lett. 245: 35; Yanase and Andoh. 1989. Pesticide Biochem. Physiol. 35: 70). These herbicidal compounds include the diphenylethers {e.g. lactofen, (+−)-2-ethoxy-1-methyl-2-oxoethyl 5-{2-chloro-4-(trifluoromethyl)phenoxy}-2-nitrobenzoate; acifluorfen, 5-{2-chloro-4-(trifluoromethyl)phenoxy}-2-nitrobenzoic acid; its methyl ester; or oxyfluorfen, 2-chloro-1-(3-ethoxy-4-nitrophenoxy)-4-(trifluorobenzene)}, oxidiazoles, (e.g. oxidiazon, 3-{2,4-dichloro-5-(1-methylethoxy)phenyl}-5-(1,1-dimethylethyl)-1,3,4-oxadiazol-2-(3H)-one), cyclic imides (e.g. S-23142, N-(4-chloro-2-fluoro-5-propargyloxyphenyl)-3,4,5,6-tetrahydrophthalimide; chlorophthalim, N-(4-chlorophenyl)-3,4,5,6-tetrahydrophthalimide), phenyl pyrazoles (e.g. TNPP-ethyl, ethyl 2-{1-(2,3,4-trichlorophenyl)-4-nitropyrazolyl-5-oxy}propionate; M&B 39279), pyridine derivatives (e.g. LS 82-556), and phenopylate and its O-phenylpyrrolidino- and piperidinocarbamate analogs. Many of these compounds competitively inhibit the normal reaction catalyzed by the enzyme, apparently acting as substrate analogs.


Application of PPO-inhibiting herbicides results in the accumulation of protoporphyrinogen IX in the chloroplast and mitochondria, which is believed to leak into the cytosol where it is oxidized by a peroxidase. When exposed to light, protoporphyrin IX causes formation of singlet oxygen in the cytosol and the formation of other reactive oxygen species, which can cause lipid peroxidation and membrane disruption leading to rapid cell death (Lee et al. 1993. Plant Physiol. 102: 881).


Not all PPO enzymes are sensitive to herbicides which inhibit plant PPO enzymes. Both the Escherichia coli and Bacillus subtilis PPO enzymes (Sasarmen et al. 1993. Can. J. Microbiol. 39: 1155; Dailey et al. 1994. J. Biol. Chem. 269: 813) are resistant to these herbicidal inhibitors. Mutants of the unicellular alga Chlamydomonas reinhardtii resistant to the phenylimide herbicide S-23142 have been reported (Kataoka et al. 1990. J. Pesticide Sci. 15: 449; Shibata et al. 1992. In Research in Photosynthesis, Vol. III, N. Murata, ed. Kluwer:Netherlands. pp. 567-70). At least one of these mutants appears to have an altered PPO activity that is resistant not only to the herbicidal inhibitor on which the mutant was selected, but also to other classes of protox inhibitors (Oshio et al. 1993. Z. Naturforsch. 48c: 339; Sato et al. 1994. In ACS Symposium on Porphyric Pesticides, S. Duke, ed. ACS Press: Washington, D.C.). A mutant tobacco cell line has also been reported that is resistant to the inhibitor S-21432 (Che et al. 1993. Z. Naturforsch. 48c: 350). Auxotrophic E. coli mutants have been used to confirm the herbicide resistance of cloned plant PPO-inhibting herbicides.


Three main strategies are available for making plants tolerant to herbicides, i.e. (1) detoxifying the herbicide with an enzyme which transforms the herbicide, or its active metabolite, into non-toxic products, such as, for example, the enzymes for tolerance to bromoxynil or to basta (EP242236, EP337899); (2) mutating the target enzyme into a functional enzyme which is less sensitive to the herbicide, or to its active metabolite, such as, for example, the enzymes for tolerance to glyphosate (EP293356, Padgette S. R. et al., J.Biol. Chem., 266, 33, 1991); or (3) overexpressing the sensitive enzyme so as to produce quantities of the target enzyme in the plant which are sufficient in relation to the herbicide, in view of the kinetic constants of this enzyme, so as to have enough of the functional enzyme available despite the presence of its inhibitor. The third strategy was described for successfully obtaining plants which were tolerant to PPO inhibitors (see e.g. U.S. Pat. No. 5,767,373 or U.S. Pat. No. 5,939,602, and patent family members thereof.). In addition, US 2010/0100988 and WO 2007/024739 discloses nucleotide sequences encoding amino acid sequences having enzymatic activity such that the amino acid sequences are resistant to PPO inhibitor herbicidal chemicals, in particular 3-phenyluracil inhibitor specific PPO mutants.


WO 2012/080975 discloses plants the tolerance of which to a PPO-inhibiting herbicide named (1,5-dimethyl-6-thioxo-3-(2,2,7-trifluoro-3-oxo-4-(prop-2-ynyl)-3,4-dihydro-2H-benzo[b][1,4]oxazin-6-yl)-1,3,5-triazinane-2,4-dione) had been increased by transforming said plants with nucleic acids encoding mutated PPO mutated enzymes. In particular, WO 2012/080975 discloses that the introduction of nucleic acids which code for a mutated PPO of an Amaranthus type II PPO in which the Arginine at position 128 had been replaced by a leucine, alanine, or valine, and the phenylalanine at position 4 had been replaced by a methionine, cysteine, isoleucine, leucine, or threonine, confers increased tolerance/resistance to a benzoxazinone-derivative herbicide. WO 2013/189984 discloses plants the tolerance of which to PPO inhibitors had been increased by transforming said plants with nucleic acids encoding mutated PPO enzymes, in which the Leucine corresponding to position 397 of an Amaranthus type II PPO had been replaced, and the phenylalanine corresponding to position 420 of an Amaranthus type II PPO had been replaced. WO2015/02263640 discloses plants the tolerance of which to PPO inhibitors had been increased by transforming said plants with nucleic acids encoding mutated PPO enzymes, in which the Arginine corresponding to position 128 of an Amaranthus type II PPO had been replaced, and the phenylalanine corresponding to position 420 of an Amaranthus type II PPO had been replaced, but the replacement occurred with amino acids, which are different from those disclosed in WO 2012/080975. WO2015/092706 describes PPO polypeptides from a plurality of organisms, which PPO polypeptides had been mutated to comprise the advantageous mutations employed for the Amaranthus type II PPO. WO2015/0226 discloses PPO polypeptides from Alopecurus myosuroides and mutants thereof, which confer tolerance to a broad spectrum of PPO inhibiting herbicides.


The inventors of the present invention have now surprisingly found that those types of mutants confer increased tolerance/resistance to a new class of PPO inhibitors, hereinafter described as uracilpyridines or uracilpyridine herbicides. Thus, to date, the prior art has not described uracilpyridine tolerant plants containing a mutated PPO nucleic acid according to the present invention, which are tolerant/resistant to a broad selection of uracilpyridines. Therefore, what is needed in the art are crop plants and crop plants having increased tolerance to uracilpyridines and containing at least one wildtype and/or mutated PPO nucleic acid according to the present invention. Also needed are methods for controlling weed growth in the vicinity of such crop plants or crop plants. These compositions and methods would allow for the use of spray over techniques when applying herbicides to areas containing crop plants or crop plants.


SUMMARY OF THE INVENTION

The problem is solved by the present invention which refers to a method for controlling undesired vegetation at a plant cultivation site, the method comprising the steps of:

    • a) providing, at said site, a plant that comprises at least one nucleic acid comprising a nucleotide sequence encoding a protoporphyrinogen oxidase (PPO) polypeptide which is resistant or tolerant to a “PPO inhibiting herbicide”;
    • b) applying to said site an effective amount of said herbicide,
    • wherein the PPO inhibiting herbicide is a uracilpyridine of formula (I)




embedded image




    • wherein the substituents have the following meanings:





R′ hydrogen, NH2, C1-C6-alkyl or C3-C6-alkynyl;

    • R2 hydrogen, C1-C6-alkyl or C1-C6-haloalkyl;
    • R3 hydrogen or C1-C6-alkyl;
    • R4 H or halogen;
    • R5 halogen, CN, NO2, NH2, CF3, or C(═S)NH2;
    • R6 H, halogen, CN, C1-C3-alkyl, C1-C3-haloalkyl, C1-C3-alkoxy, C1-C3-haloalkoxy, C1-C3-alkylthio, (C1-C3-alkyl)amino, di(C1-C3-alkyl)amino, C1-C3-alkoxy-C1-C3-alkyl, C1-C3-alkoxycarbonyl;
    • R7 H, halogen, C1-C3-alkyl, C1-C3-alkoxy;
    • R8 OR9, SR9, NR10R11, NR9OR9, NR9S(O)2R10 or NR9S(O)2NR10R11, wherein
      • R9 is hydrogen, C1-C6-alkyl, C3-C6-alkenyl, C3-C6-alkynyl, C1-C6-haloalkyl, C3-C6-haloalkenyl, C3-C6-haloalkynyl, C1-C6-cyanoalkyl, C1-C6-alkoxy-C1-C6-alkyl, C1-C6-alkoxy-C1-C6-alkoxy-C1-C6-alkyl, di(C1-C6-alkoxy)C1-C6-alkyl, C1-C6-haloalkoxy-C1-C6-alkyl, C3-C6-alkenyloxy-C1-C6-alkyl, C3-C6-haloalkenyloxy-C1-C6-alkyl, C1-C6-alkenyloxy-C1-C6-alkoxy-C1-C6-alkyl, C1-C6-alkylthio-C1-C6-alkyl, C1-C6-alkylsulfinyl-C1-C6-alkyl, C1-C6-alkylsulfonyl-C1-C6-alkyl, C1-C6-alkylcarbonyl-C1-C6-alkyl, C1-C6-alkoxycarbonyl-C1-C6-alkyl, C1-C6-haloalkoxycarbonyl-C1-C6-alkyl, C3-C6-alkenyloxycarbonyl-C1-C6-alkyl, C3-C6-alkynyloxycarbonyl-C1-C6-alkyl, amino, (C1-C6-alkyl)amino, di(C1-C6-alkyl)amino, (C1-C6-alkylcarbonyl)amino, amino-C1-C6-alkyl, (C1-C6-alkyl)amino-C1-C6-alkyl, di(C1-C6-alkyl)amino-C1-C6-alkyl, aminocarbonyl-C1-C6-alkyl, (C1-C6-alkyl)aminocarbonyl-C1-C6-alkyl, di(C1-C6-alkyl)aminocarbonyl-C1-C6-alkyl,
        • —N═CR12R13, wherein R12 and R13 independently of one another are H, C1-C4-alkyl or phenyl;
        • C3-C6-cycloalkyl, C3-C6-cycloalkyl-C1-C6-alkyl, C3-C6-heterocyclyl, C3-C6-heterocyclyl-C1-C6-alkyl, phenyl, phenyl-C1-C4-alkyl or a 5- or 6 membered heteroaryl,
          • wherein each cycloalkyl, heterocyclyl, phenyl or heteroaryl ring can be substituted by one to four substituents selected from R″ or a 3- to 7-membered carbocyclus,
          •  which carbocyclus optionally has in addition to carbon atoms one or two ring members selected from the group consisting of —N(R12)—, —N═N—, —C(═O)—, —O— and —S—, and
          •  which carbocyclus is optionally substituted with one to four substituents selected from R″;
          • wherein R14 is halogen, NO2, CN, C1-C4-alkyl, C1-C4-halo-alkyl, C1-C4-alkoxy or C1-C4-alkoxycarbonyl;
      • R10, R11 independently of one another are R9, or together form a 3- to 7-membered carbocyclus,
        • which carbocyclus optionally has in addition to carbon atoms one or two ring members selected from the group consisting of —N(R12—, —N═N—, —C(═O)—, —O— and —S—, and
        • which carbocyclus is optionally substituted with one to four substituents selected from R14;
    • n 1 to 3;
    • Q CH2, O, S, SO, SO2, NH or (C1-C3-alkyl)N;
    • O or S;
    • X NH, NCH3, O or S;
    • Y O or S;
    • Z phenyl, pyridyl, pyridazinyl, pyrimidinyl or pyrazinyl,
      • each of which is optionally substituted by 1 to 4 substituents selected from the group consisting of halogen, CN, C1-C6-alkyl, C1-C6-haloalkyl, C1-C6-alkoxy, C1-C6-haloalkoxy;
    • including their agriculturally acceptable salts or derivatives, provided the compounds of formula (I) have a carboxyl group


and wherein the effective amount of said herbicide does not kill or inhibit the growth of the herbicide-tolerant plant of a).


In one embodiment, the herbicide resistant or tolerant PPO polypeptide comprises one or more of the following motifs 1, 2, and/or 3:

    • a. Motif 1: SQ[N/K/H]KRYI, wherein the Arg at position 5 within said motif is substituted by any other amino acid;
    • b. Motif 2: TLGTLFSS, wherein the Leu at position 2, and/or the Gly at position 3, and/or the Leu at position 5 within said motif is substituted by any other amino acid;
    • c. Motif 3: [F/Y]TTF[V/I]GG, wherein the Phe at position 4 within said motif is substituted by any other amino acid.


In another embodiment, the herbicide resistant or tolerant PPO polypeptide comprises a variant of the amino acid sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 40 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, 45 or 637, which variant comprises one or more of the following substitutions:

    • a. the amino acid corresponding to Arg128 of SEQ ID NO: 1 is substituted by any other amino acid.
    • b. The amino acid corresponding to GIy211 of SEQ ID NO: 1 is substituted by any other amino acid
    • c. the amino acid corresponding to Leu397 of SEQ ID NO: 1 is substituted by any other amino acid.
    • d. the amino acid corresponding to GIy398 of SEQ ID NO: 1 is substituted by any other amino acid
    • e. the amino acid corresponding to Leu400 of SEQ ID NO: 1 is substituted by any other amino acid
    • f. the amino acid corresponding to Phe420 of SEQ ID NO: 1 is substituted by any other amino acid.


In still another embodiment, the herbicide resistant or tolerant PPO polypeptide comprises the amino acid sequence of SEQ ID NO: 265, 266, 267, 268, 269, 270, 271, 272, 273, 274, 275, 276, 277, 278, 279, 280, 281, 282, 283, 284, 285, 286, 287, 288, 289, 290, 291, 292, 293, 294, 295, 296, 297, 298, 299, 300, 301, 302, 303, 304, 305, 306, 307, 308, 309, 310, 311, 312, 313, 314, 315, 316, 317, 318, 319, 320, 321, 322, 323, 324, 325, 326, 327328, 329, 330, 331, 332, 333, 334, 335, 336, 337, 338, 339, 340, 341, 342, 343, 20 344, 345, 346, 347, 348, 349, 350, 351, 352, 353, 354, 355, 356, 357, 358, 359, 360, 361, 362, 363, 364, 365, 366, 367, 368, 369, 370, 371, 372, 373, 374, 375, 376, 377, 378, 379, 380, 381, 382, 383, 384, 385, 386, 387, 388, 389, 390, 391, 392, 393, 394, 395, 396, 397, 398, 399, 400, 401, 402, 403, 404, 405, 406, 407, 408, 409, 410, 411, 412, 413, 414, 415, 416, 417, 418, 419, 420, 421, 422, 423, 424, 425, 426, 427, 428, 429, 430, 431, 432, 433, 25 434, 435, 436, 437, 438, 439, 440, 441, 442, 443, 444, 445, 446, 447, 448, 449, 450, 451, 452, 453, 454, 455, 456, 457, 458, 459, 460, 461, 462, 463, 464, 465, 466, 467, 468, 469, 470, 471, 472, 473, 474, 475, 476, 477, 478, 479, 480, 481, 482, 483, 484, 485, 486, 487, 488, 489, 490, 491, 492, 493, 494, 495, 496, 497, 498, 499, 500, 501, 502, 503, 504, 505, 506, 507, 508, 509, 510, 511, 512, 513, 514, 515, 516, 517, 518, 519, 520, 521, 522, 523, 30 524, 525, 526, 527, 528, 529, 530, 531, 532, 533, 534, 535, 536, 537, 538, 539, 540, 541, 542, 543, 544, 545, 546, 547, 548, 549, 550, 551, 552, 553, 554, 555, 556, 557, 558, 559, 560, 561, 562, 563, 564, 565, or a variant thereof.


In still another embodiment, the herbicide resistant or tolerant PPO polypeptide comprises the amino acid sequence of SEQ ID NO: 240, 241, 242, 243, 244, 245, 246, 247, 248, 249, 250, 251, 252, 253, 254, 255, 256, 257, 258, 259, 260, 261, 262, or 264.


Another object refers to a method of identifying a nucleotide sequence encoding a mutated PPO which is resistant or tolerant to a uracilpyridine herbicide, the method comprising:

    • a) generating a library of mutated PPO-encoding nucleic acids,
    • b) screening a population of the resulting mutated PPO-encoding nucleic acids by expressing each of said nucleic acids in a cell or plant and treating said cell or plant with a uracilpyridine,
    • c) comparing the uracilpyridine herbicide-tolerance levels provided by said population of mutated PPO encoding nucleic acids with the uracilpyridine -tolerance level provided by a control PPO-encoding nucleic acid,
    • d) selecting at least one mutated PPO-encoding nucleic acid that provides a significantly increased level of tolerance to a uracilpyridine as compared to that provided by the control PPO-encoding nucleic acid.


In a preferred embodiment, the mutated PPO-encoding nucleic acid selected in step d) provides at least 2-fold as much tolerance to a uracilpyridine as compared to that provided by the control PPO-encoding nucleic acid.


The resistance or tolerance can be determined by generating a transgenic plant comprising a nucleic acid sequence of the library of step a) and comparing said transgenic plant with a control plant.


Another object refers to a method of identifying a plant or algae containing a nucleic acid encoding a mutated PPO which is resistant or tolerant to a uracilpyridine, the method comprising:

    • a) identifying an effective amount of a uracilpyridine in a culture of plant cells or green algae.
    • b) treating said plant cells or green algae with a mutagenizing agent,
    • c) contacting said mutagenized cells population with an effective amount of uracilpyridine herbicide, identified in a),
    • d) selecting at least one cell surviving these test conditions,
    • e) PCR-amplification and sequencing of PPO genes from cells selected in d) and comparing such sequences to wild-type PPO gene sequences, respectively.


In a preferred embodiment, the mutagenizing agent is ethylmethanesulfonate.


In another embodiment, the invention refers to a plant cell transformed by and expressing a wild-type or a mutated PPO nucleic acid according to the present invention or a plant which has been mutated to obtain a plant expressing, preferably over-expressing a wild-type or a mutated PPO nucleic acid according to the present invention, wherein expression of said nucleic acid in the plant cell results in increased resistance or tolerance to a uracilpyridine as compared to a wild type variety of the plant cell.


In another embodiment, the invention refers to a plant that expresses a mutagenized or recombinant mutated PPO polypeptide, and wherein said mutated PPO confers upon the plant increased uracilpyridine tolerance as compared to the corresponding wild-type variety of the plant when expressed therein.


In another embodiment, the invention refers to a plant comprising a plant cell according to the present invention, wherein expression of the nucleic acid in the plant results in the plant's increased resistance to uracilpyridine herbicide as compared to a wild type variety of the plant.


The plants of the present invention can be transgenic or non-transgenic.


Preferably, the expression of the nucleic acid of the invention in the plant results in the plant's increased resistance to uracilpyridine herbicides as compared to a wild type variety of the plant.


In another embodiment, the invention refers to a method for growing the plant according to the present invention while controlling weeds in the vicinity of said plant, said method comprising the steps of:

    • a) growing said plant ; and
    • b) applying a herbicide composition comprising a uracilpyridine herbicide to the plant and weeds, wherein the herbicide normally inhibits protoporphyrinogen oxidase, at a level of the herbicide that would inhibit the growth of a corresponding wild-type plant.


In another embodiment, the invention refers to a seed produced by a transgenic plant comprising a plant cell of the present invention, or to a seed produced by the non-transgenic plant that expresses a mutagenized PPO polypeptide, wherein the seed is true breeding for an increased resistance to a uracilpyridine herbicide as compared to a wild type variety of the seed.


In another embodiment, the invention refers to a method of producing a transgenic plant cell with an increased resistance to a uracilpyridine herbicide as compared to a wild type variety of the plant cell comprising, transforming the plant cell with an expression cassette comprising a wild-type or a mutated PPO nucleic acid.


In another embodiment, the invention refers to a method of producing a transgenic plant comprising, (a) transforming a plant cell with an expression cassette comprising a wild-type or a mutated PPO nucleic acid, and (b) generating a plant with an increased resistance to uracilpyridine herbicide from the plant cell.


Preferably, the expression cassette further comprises a transcription initiation regulatory region and a translation initiation regulatory region that are functional in the plant.


In another embodiment, the invention relates to using the mutated PPO of the invention as selectable marker. The invention provides a method of identifying or selecting a transformed plant cell, plant tissue, plant or part thereof comprising a) providing a transformed plant cell, plant tissue, plant or part thereof, wherein said transformed plant cell, plant tissue, plant or part thereof comprises an isolated nucleic acid encoding a mutated PPO polypeptide of the invention as described hereinafter, wherein the polypeptide is used as a selection marker, and wherein said transformed plant cell, plant tissue, plant or part thereof may optionally comprise a further isolated nucleic acid of interest; b) contacting the transformed plant cell, plant tissue, plant or part thereof with at least one PPO-inhibiting inhibiting compound; c) determining whether the plant cell, plant tissue, plant or part thereof is affected by the inhibitor or inhibiting compound; and d) identifying or selecting the transformed plant cell, plant tissue, plant or part thereof.


The invention is also embodied in purified mutated PPO proteins that contain the mutations described herein, which are useful in molecular modeling studies to design further improvements to herbicide tolerance. Methods of protein purification are well known, and can be readily accomplished using commercially available products or specially designed methods, as set forth for example, in Protein Biotechnology, Walsh and Headon (Wiley, 1994).


In another embodiment, the invention relates to a combination useful for weed control, comprising (a) a polynucleotide encoding a mutated PPO polypeptide according to the present invention, which polynucleotide is capable of being expressed in a plant to thereby provide to that plant tolerance to a uracilpyridine herbicide; and (b) a uracilpyridine herbicide.


In another embodiment, the invention relates to a process for preparing a combination useful for weed control comprising (a) providing a polynucleotide encoding a mutated PPO polypeptide according to the present invention, which polynucleotide is capable of being expressed in a plant to thereby provide to that plant tolerance to a uracilpyridine herbicide; and (b) providing a uracilpyridine herbicide.


In a preferred embodiment, said step of providing a polynucleotide comprises providing a plant containing the polynucleotide.


In another preferred embodiment, said step of providing a polynucleotide comprises providing a seed containing the polynucleotide.


In another preferred embodiment, said process further comprises a step of applying the uracilpyridine herbicide to the seed.


In another embodiment, the invention relates to the use of a combination useful for weed control, comprising (a) a polynucleotide encoding a mutated PPO polypeptide according to the present invention, which polynucleotide is capable of being expressed in a plant to thereby provide to that plant tolerance to a uracilpyridine herbicide; and (b) a uracilpyridine herbicide, to control weeds at a plant cultivation site.





BRIEF DESCRIPTION OF THE DRAWINGS

(NB: full name of used uracilpyridines is given in the Example section)



FIG. 1: Rice plants 7 days after treatment with 3.125g Al/ha of Uracilpyridine 4. A) wild-type, B) R139L mutant, C) R139G mutant, D) G225R mutant, E) G420A mutant, F) F442L mutant, G) F4421 mutant, H) F442V mutant, I) L419 mutant, J) L422F mutant



FIG. 2: SRice plants 7 days after treatment with 6.25g Al/ha of Uracilpyridine 2. A) wild-type, B) R139L mutant, C) R139G mutant, D) G225R mutant, E) G420A mutant, F) F442L mutant, G) F4421 mutant, H) F442V mutant, I) L419 mutant, J) L422F mutant.



FIG. 3: Response of rice containing mutations in the OsPPO2 gene and wild-type rice to application of Uracilpyridine 4. Each bar represents the average of up to four plants. Phytotoxicity was assessed 7 days after herbicide application. *** P-value <0.001, ** P-value<0.01,*P-value<0.05 as calculated by ANOVA using a QuasiPoisson distribution



FIG. 4: Response of rice containing mutations in the OsPPO2 gene and wild-type rice to application of Uracilpyridine 2. Each bar represents the average of up to four plants. Phytotoxicity was assessed 7 days after herbicide application. *** P-value <0.001, ** P-value<0.01,*P-value<0.05 as calculated by ANOVA using a QuasiPoisson distribution.



FIG. 5: Transgenic T2 Arabidopsis plants harboring Arabidopsis PPO tolerance trait, sprayed post in the greenhouse with the following amounts (80, 30, 10, 5, 1 g/ha from right to left) of Uracilpyridine +1% (v/v) MSO. Pictures taken 14 Days After Treatment (DAT). A) is tested with Uracilpyridine 4, B) is tested with Uracilpyridine 5, C) is tested with Uracilpyridine 2, D) is tested with Uracilpyridine 3.


1=non-transformed Arabidopsis plants


2=Transformants with Arabidopsis PPO1 wildtype


3=Transformants with Arabidopsis PPO1 double mutant S305L_Y426M



FIG. 6: Transgenic T2 Arabidopsis plants harboring various PPO tolerance trait, sprayed post in the greenhouse with the following amounts (200, 100, 50 g/ha) of Uracilpyridine+1% (v/v) MSO. Pictures taken 14 Days After Treatment (DAT). A) is tested with Uracilpyridine 2, B) is tested with Uracilpyridine 4, C) is tested with Uracilpyridine 1, D) is tested with Uracilpyridine 2.


1=non-transformed Arabidopsis plants


2=transformed with AMATU_PPO2_TPL_hemG (event R) (SEQ ID NO: 246)


3=transformed with AMATU_PPO2_TPL_hemG (event Q) (SEQ ID NO: 246)


4=transformed with ALOMY_PPO2_TP_hemG (SEQ ID NO: 248)


5=transformed with ALOMY_PPO2_R137LF438V


6=transformed with ALOMY_PPO2_TPL_AMATU_PPO2_R128M_F420I (SEQ ID NO: 258)


7=transformed with AMATUPPO2R_128MF420I


8=transformed with AMATU_PPO2_R128A_F420M



FIG. 7: Transgenic Corn plants harboring a PPO inhibitor tolerance trait, sprayed post at the V5 leaf stage with 100 g/ha of Uracilpyridine 2+1% (v/v) MSO. Evaluation performed 14 Days After Treatment (DAT) and is shown as injury (%) relative to non-transgenic treated plants. Application performed on corn in V5 leaf stage with 100 g/ha Uracilpyridine 2. Picture taken at 2 DAT


1=Corn transformed with AMATUPPO2R128AF420L


2=Corn transformed with AMATUPPO2R128AF420I


3=non-transformed corn plants



FIG. 8: Transgenic T3 Soybean plants harboring a PPO inhibitor tolerance trait, sprayed post at the V3 leaf stage with 100 g/ha of Uracilpyridine 2+1% (v/v) MSO. Evaluation performed 14 Days After Treatment (DAT) and is shown as injury (%) relative to non-transgenic treated plants. Application performed on soy at V3 leaf stage with 100 g/ha uracilpyridine 2. Picture taken at 2 DAT


1=Soy transformed with AMATU_PPO2_R128A, F420I


2=Soy transformed with AMATU_PPO2_L397E, F420V


3=Soy transformed with AMATU_PPO2_L397E, F420M


4=Soy transformed with AMATU_PPO2_L397Q, F420M


5=non-transformed soy plants



FIG. 9: Transgenic T4 Soybean plants harboring a PPO inhibitor tolerance trait, sprayed with g/ha (Panels A-B), 50 g/ha (Panels C-D), 100 g/ha (Panels E-F) of Uracilpyridine 10+1% (v/v) MSO. Evaluation and pictures taken 7 Days After Treatment. Application performed on soybean 14 days after sowing. Panels A, C, & E each show plants harboring a PPO trait containg R128A+F420L, R128A+F420I AMTU PPO2 variants as well as untransformed soybean (last column). Panels B, D, & F each show plants harboring a PPO trait containg L397Q+F420V and L397E+F420M AMTU PPO2 variants.



FIG. 10: Transgenic T4 Soybean plants harboring a PPO inhibitor tolerance trait, sprayed with 25 g/ha (Panels A-B), 50 g/ha (Panels C-D), 100 g/ha (Panels E-F) of Uracilpyridine 20+1% (v/v) MSO. Evaluation and pictures taken 7 Days After Treatment. Application performed on soybean 14 days after sowing. Panels A, C, & E each show plants harboring a PPO trait containg R128A+F420L, R128A+F420I AMTU PPO2 variants as well as untransformed soybean (last column). Panels B, D, & F each show plants harboring a PPO trait containing L397Q+F420V and L397E+F420M AMTU PPO2 variants.



FIG. 11: Transgenic T4 Soybean plants harboring a PPO inhibitor tolerance trait, sprayed with 25 g/ha (Panels A-B), 50 g/ha (Panels C-D), 100 g/ha (Panels E-F) of Uracilpyridine 21+1% (v/v) MSO. Evaluation and pictures taken 7 Days After Treatment. Application performed on soybean 14 days after sowing. Panels A, C, & E each show plants harboring a PPO trait containg R128A+F420L, R128A+F420I AMTU PPO2 variants as well as untransformed soybean (last column). Panels B, D, & F each show plants harboring a PPO trait containg L397Q+F420V and L397E+F420M AMTU PPO2 variants.



FIG. 12: Transgenic T4 Soybean plants harboring a PPO inhibitor tolerance trait, sprayed with g/ha (Panels A-B), 50 g/ha (Panels C-D), 100 g/ha (Panels E-F) of Uracilpyridine 22+1% (v/v) MSO. Evaluation and pictures taken 7 Days After Treatment. Application performed on soybean 14 days after sowing. Panels A, C, & E each show plants harboring a PPO trait containg R128A+F420L, R128A+F420I AMTU PPO2 variants as well as untransformed soybean (last column). Panels B, D, & F each show plants harboring a PPO trait containg L397Q+F420V and L397E+F420M AMTU PPO2 variants.





DETAILED DESCRIPTION

The articles “a” and “an” are used herein to refer to one or more than one (i.e., to at least one) of the grammatical object of the article. By way of example, “an element” means one or more elements.


As used herein, the word “comprising,” or variations such as “comprises” or “comprising,” will be understood to imply the inclusion of a stated element, integer or step, or group of elements, integers or steps, but not the exclusion of any other element, integer or step, or group of elements, integers or steps.


The inventors of the present invention have found, that the tolerance or resistance of a plant to a uracilpyridine herbicide could be remarkably increased by overexpressing a nucleic acid encoding PPO polypeptides described hereinafter.


The present invention refers to a method for controlling undesired vegetation at a plant cultivation site, the method comprising the steps of:

    • a) providing, at said site, a plant that comprises at least one nucleic acid comprising a nucleotide sequence encoding a protoporphyrinogen oxidase (mutated PPO) which is resistant or tolerant to a PPO-inhibiting herbicide as defined hereinafter,
    • b) applying to said site an effective amount of said herbicide,
    • wherein the PPO inhibiting herbicide is a uracilpyridine of formula (I)




embedded image




    • wherein the substituents have the following meanings:

    • R1 hydrogen, NH2, C1-C6-alkyl or C3-C6-alkynyl;

    • R2 hydrogen, C1-C6-alkyl or C1-C6-haloalkyl;

    • R3 hydrogen or C1-C6-alkyl;

    • R4 H or halogen;

    • R5 halogen, CN, NO2, NH2, CF3, or C(═S)NH2;

    • R6 H, halogen, CN, C1-C3-alkyl, C1-C3-haloalkyl, C1-C3-alkoxy, C1-C3-haloalkoxy, C1-C3-alkylthio, (C1-C3-alkyl)amino, di(C1-C3-alkyl)amino, C1-C3-alkoxy-C1-C3-alkyl, C1-C3-alkoxycarbonyl;

    • R7 H, halogen, C1-C3-alkyl, C1-C3-alkoxy;

    • R8 OR9, SR9, NR10R11, NR9OR9, NR9S(O)2R10 or NR9S(O)2NR10R11, wherein
      • R9 is hydrogen, C1-C6-alkyl, C3-C6-alkenyl, C3-C6-alkynyl, C1-C6-haloalkyl, C3-C6-haloalkenyl, C3-C6-haloalkynyl, C1-C6-cyanoalkyl, C1-C6-alkoxy-C1-C6-alkyl, C1-C6-alkoxy-C1-C6-alkoxy-C1-C6-alkyl, di(C1-C6-alkoxy)C1-C6-alkyl, C1-C6-haloalkoxy-C1-C6-alkyl, C3-C6-alkenyloxy-C1-C6-alkyl, C3-C6-haloalkenyloxy-C1-C6-alkyl, C3-C6-alkenyloxy-C1-C6-alkoxy-C1-C6-alkyl, C1-C6-alkylthio-C1-C6-alkyl, C1-C6-alkylsulfinyl-C1-C6-alkyl, C1-C6-alkylsulfonyl-C1-C6-alkyl, C1-C6-alkylcarbonyl-C1-C6-alkyl, C1-C6-alkoxycarbonyl-C1-C6-alkyl, C1-C6-haloalkoxycarbonyl-C1-C6-alkyl, C3-C6-alkenyloxycarbonyl-C1-C6-alkyl, C3-C6-alkynyloxycarbonyl-C1-C6-alkyl, amino, (C1-C6-alkyl)amino, di(C1-C6-alkyl)amino, (C1-C6-alkylcarbonyl)amino, amino-C1-C6-alkyl, (C1-C6-alkyl)amino-C1-C6-alkyl, di(C1-C6-alkyl)amino-C1-C6-alkyl, aminocarbonyl-C1-C6-alkyl, (C1-C6-alkyl)aminocarbonyl-C1-C6-alkyl, di(C1-C6-alkyl)aminocarbonyl-C1-C6-alkyl,
        • —N═CR12R13, wherein R12 and R13 independently of one another are H, C1-C4-alkyl or phenyl;
        • C3-C6-cycloalkyl, C3-C6-cycloalkyl-C1-C6-alkyl, C3-C6-heterocyclyl, C3-C6-heterocyclyl-C1-C6-alkyl, phenyl, phenyl-C1-C4-alkyl or a 5- or 6 membered heteroaryl,
          • wherein each cycloalkyl, heterocyclyl, phenyl or heteroaryl ring can be substituted by one to four substituents selected from R″ or a 3- to 7-membered carbocyclus,
          •  which carbocyclus optionally has in addition to carbon atoms one or two ring members selected from the group consisting of —N(R12)—, —N═N—, —C(═O)—, —O— and —S—, and
          •  which carbocyclus is optionally substituted with one to four substituents selected from R14;
          •   wherein R14 is halogen, NO2, CN, C1-C4-alkyl, C1-C4-halo-alkyl, C1-C4-alkoxy or C1-C4-alkoxycarbonyl;
      • R10, R11 independently of one another are R9, or together form a 3- to 7-membered carbocyclus,
        • which carbocyclus optionally has in addition to carbon atoms one or two ring members selected from the group consisting of —N(R12)—, —N═N—, —C(═O)—, —O— and —S—, and
        • which carbocyclus is optionally substituted with one to four substituents selected from R14;

    • n 1 to 3;

    • Q CH2, O, S, SO, SO2, NH or (C1-C3-alkyl)N;

    • W OorS;

    • X NH, NCH3, O or S;

    • Y O or S;

    • Z phenyl, pyridyl, pyridazinyl, pyrimidinyl or pyrazinyl, each of which is optionally substituted by 1 to 4 substituents selected from the group consisting of halogen, CN, C1-C6-alkyl, C1-C6-haloalkyl, C1-C6-alkoxy, C1-C6-haloalkoxy;





including their agriculturally acceptable salts or derivatives, provided the compounds of formula (I) have a carboxyl group.


The term “control of undesired vegetation” is to be understood as meaning the killing of weeds and/or otherwise retarding or inhibiting the normal growth of the weeds. Weeds, in the broadest sense, are understood as meaning all those plants which grow in locations where they are undesired, e.g. (crop) plant cultivation sites. The weeds of the present invention include, for example, dicotyledonous and monocotyledonous weeds. Dicotyledonous weeds include, but are not limited to, weeds of the genera: Sinapis, Lepidium, Galium, Stellaria, Matricaria, Anthemis, Galinsoga, Chenopodium, Urtica, Senecio, Amaranthus, Portulaca, Xanthium, Convolvulus, Ipomoea, Polygonum, Sesbania, Ambrosia, Cirsium, Carduus, Sonchus, Solanum, Rorippa, Rotala, Lindernia, Lamium, Veronica, Abutilon, Emex, Datura, Viola, Galeopsis, Papaver, Centaurea, Trifolium, Ranunculus, and Taraxacum. Monocotyledonous weeds include, but are not limited to, weeds of of the genera: Echinochloa, Setaria, Panicum, Digitaria, Phleum, Poa, Festuca, Eleusine, Brachiaria, Lolium, Bromus, Avena, Cyperus, Sorghum, Agropyron, Cynodon, Monochoria, Fimbristyslis, Sagittaria, Eleocharis, Scirpus, Paspalum, Ischaemum, Sphenoclea, Dactyloctenium, Agrostis, Alopecurus, and Apera. In addition, the weeds of the present invention can include, for example, crop plants that are growing in an undesired location. For example, a volunteer maize plant that is in a field that predominantly comprises soybean plants can be considered a weed, if the maize plant is undesired in the field of soybean plants.


The term “plant” is used in its broadest sense as it pertains to organic material and is intended to encompass eukaryotic organisms that are members of the Kingdom Plantae, examples of which include but are not limited to vascular plants, vegetables, grains, flowers, trees, herbs, bushes, grasses, vines, ferns, mosses, fungi and algae, etc, as well as clones, offsets, and parts of plants used for asexual propagation (e.g. cuttings, pipings, shoots, rhizomes, underground stems, clumps, crowns, bulbs, corms, tubers, rhizomes, plants/tissues produced in tissue culture, etc.). The term “plant” further encompasses whole plants, ancestors and progeny of the plants and plant parts, including seeds, shoots, stems, leaves, roots (including tubers), flowers, florets, fruits, pedicles, peduncles, stamen, anther, stigma, style, ovary, petal, sepal, carpel, root tip, root cap, root hair, leaf hair, seed hair, pollen grain, microspore, cotyledon, hypocotyl, epicotyl, xylem, phloem, parenchyma, endosperm, a companion cell, a guard cell, and any other known organs, tissues, and cells of a plant, and tissues and organs, wherein each of the aforementioned comprise the gene/nucleic acid of interest. The term “plant” also encompasses plant cells, suspension cultures, callus tissue, embryos, meristematic regions, gametophytes, sporophytes, pollen and microspores, again wherein each of the aforementioned comprises the gene/nucleic acid of interest.


Plants that are particularly useful in the methods of the invention include all plants which belong to the superfamily Viridiplantae, in particular monocotyledonous and dicotyledonous plants including fodder or forage legumes, ornamental plants, food crops, trees or shrubs selected from the list comprising Acer spp., Actinidia spp., Abelmoschus spp., Agave sisalana, Agropyron spp., Agrostis stolonifera, Allium spp., Amaranth us spp., Ammophila arenaria, Ananas comosus, Annona spp., Apium graveolens, Arachis spp, Artocarpus spp., Asparagus officinalis, Avena spp. (e.g. Avena sativa, Avena fatua, Avena byzantina, Avena fatua var. sativa, Avena hybrida), Averrhoa carambola, Bambusa sp., Benincasa hispida, Bertholletia excelsea, Beta vulgaris, Brassica spp. (e.g. Brassica napus, Brassica rapa ssp. [canola, oilseed rape, turnip rape]), Cadaba farinosa, Camellia sinensis, Canna indica, Cannabis sativa, Capsicum spp., Carex elata, Carica papaya, Carissa macrocarpa, Carya spp., Carthamus tinctorius, Castanea spp., Ceiba pentandra, Cichorium endivia, Cinnamomum spp., Citrullus lanatus, Citrus spp., Cocos spp., Coffea spp., Colocasia esculenta, Cola spp., Corchorus sp., Coriandrum sativum, Corylus spp., Crataegus spp., Crocus sativus, Cucurbita spp., Cucumis spp., Cynara spp., Daucus carota, Desmodium spp., Dimocarpus longan, Dioscorea spp., Diospyros spp., Echinochloa spp., Elaeis (e.g. Elaeis guineensis, Elaeis oleifera), Eleusine coracana, Eragrostis tef, Erianthus sp., Eriobotrya japonica, Eucalyptus sp., Eugenia uniflora, Fagopyrum spp., Fagus spp., Festuca arundinacea, Ficus carica, Fortunella spp., Fragaria spp., Ginkgo biloba, Glycine spp. (e.g. Glycine max, Soja hispida or Soja max), Gossypium hirsutum, Helianthus spp. (e.g. Helianthus annuus), Hemerocallis fulva, Hibiscus spp., Hordeum spp. (e.g. Hordeum vulgare), Ipomoea batatas, Juglans spp., Lactuca sativa, Lathyrus spp., Lens culinaris, Linum usitatissimum, Litchi chinensis, Lotus spp., Luffa acutangula, Lupinus spp., Luzula sylvatica, Lycopersicon spp. (e.g. Lycopersicon esculentum, Lycopersicon lycopersicum, Lycopersicon pyriforme), Macrotyloma spp., Malus spp., Malpighia emarginata, Mammea americana, Mangifera indica, Manihot spp., Manilkara zapota, Medicago sativa, Melilotus spp., Mentha spp., Miscanthus sinensis, Momordica spp., Morus nigra, Musa spp., Nicotiana spp., Olea spp., Opuntia spp., Ornithopus spp., Oryza spp. (e.g. Oryza sativa, Oryza latifolia), Panicum miliaceum, Panicum virgatum, Passiflora edulis, Pastinaca sativa, Pennisetum sp., Persea spp., Petroselinum crispum, Phalaris arundinacea, Phaseolus spp., Phleum pratense, Phoenix spp., Phragmites australis, Physalis spp., Pinus spp., Pistacia vera, Pisum spp., Poa spp., Populus spp., Prosopis spp., Prunus spp., Psidium spp., Punica granatum, Pyrus communis, Quercus spp., Raphanus sativus, Rheum rhabarbarum, Ribes spp., Ricinus communis, Rubus spp., Saccharum spp., Salix sp., Sambucus spp., Secale cereale, Sesamum spp., Sinapis sp., Solanum spp. (e.g. Solanum tuberosum, Solanum integrifolium or Solanum lycopersicum), Sorghum bicolor, Spinacia spp., Syzygium spp., Tagetes spp., Tamarind us indica, Theobroma cacao, Trifolium spp., Tripsacum dactyloides, Triticosecale rimpaui, Triticum spp. (e.g. Triticum aestivum, Triticum durum, Triticum turgidum, Triticum hybernum, Triticum macha, Triticum sativum, Triticum monococcum or Triticum vulgare), Tropaeolum minus, Tropaeolum majus, Vaccinium spp., Vicia spp., Vigna spp., Viola odorata, Vitis spp., Zea mays, Zizania palustris, Ziziphus spp., amaranth, artichoke, asparagus, broccoli, Brussels sprouts, cabbage, canola, carrot, cauliflower, celery, collard greens, flax, kale, lentil, oilseed rape, okra, onion, potato, rice, soybean, strawberry, sugar beet, sugar cane, sunflower, tomato, squash, tea and algae, amongst others. According to a preferred embodiment of the present invention, the plant is a crop plant. Examples of crop plants include inter alia soybean, sunflower, canola, alfalfa, rapeseed, cotton, tomato, potato or tobacco. Further preferebly, the plant is a monocotyledonous plant, such as sugarcane. Further preferably, the plant is a cereal, such as rice, maize, wheat, barley, millet, rye, sorghum or oats.


In a preferred embodiment, the plant has been previously produced by a process comprising recombinantly preparing a plant by introducing and over-expressing a wild-type or mutated PPO transgene according to the present invention, as described in greater detail hereinfter.


In another preferred embodiment, the plant has been previously produced by a process comprising in situ mutagenizing plant cells, to obtain plant cells which express a mutated PPO.


As disclosed herein, the nucleic acids of the invention find use in enhancing the herbicide tolerance of plants that comprise in their genomes a gene encoding a herbicide-tolerant wild-type or mutated PPO protein. Such a gene may be an endogenous gene or a transgene, as described hereinafter.


Therefore, in another embodiment the present invention refers to a method of increasing or enhancing the uracilpyridine herbicide tolerance or resistance of a plant, the method comprising overexpressing a nucleic acid encoding a PPO polypeptide which comprises one or more of the following motifs 1, 2, and/or 3:

    • a. Motif 1: SQ[N/K/H]KRYI, wherein the Arg at position 5 within said motif is substituted by any other amino acid;
    • b. Motif 2: TLGTLFSS, wherein the Leu at position 2 and/or the Gly at position 3, and/or the Leu at position 5 within said motif is substituted by any other amino acid;
    • c. Motif 3: [F/Y]TTF[V/I]GG, wherein the Phe at position 4 within said motif is substituted by any other amino acid.


In another embodiment the present invention refers to a method of increasing or enhancing the uracilpyridine herbicide tolerance or resistance of a plant, the method comprising overexpressing a nucleic acid encoding a herbicide resistant or tolerant PPO polypeptide which comprises a variant of the amino acid sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 5 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, which variant comprises one or more of the following substitutions:

    • a. the amino acid corresponding to Arg128 of SEQ ID NO: 1 is substituted by any other amino acid.
    • b. The amino acid corresponding to Gly211 of SEQ ID NO: 1 is substituted by any other amino acid
    • c. the amino acid corresponding to Leu397 of SEQ ID NO: 1 is substituted by any other amino acid.
    • d. the amino acid corresponding to Gly398 of SEQ ID NO: 1 is substituted by any other amino acid
    • e. the amino acid corresponding to Leu400 of SEQ ID NO: 1 is substituted by any other amino acid
    • f. the amino acid corresponding to Phe420 of SEQ ID NO: 1 is substituted by any other amino acid.


In another embodiment the present invention refers to a method of increasing or enhancing the uracilpyridine herbicide tolerance or resistance of a plant, the method comprising overexpressing a nucleic acid encoding a herbicide resistant or tolerant PPO polypeptide which comprises the amino acid sequence of SEQ ID NO: 265, 266, 267, 25 268, 269, 270, 271, 272, 273, 274, 275, 276, 277, 278, 279, 280, 281, 282, 283, 284, 285, 286, 287, 288, 289, 290, 291, 292, 293, 294, 295, 296, 297, 298, 299, 300, 301, 302, 303, 304, 305, 306, 307, 308, 309, 310, 311, 312, 313, 314, 315, 316, 317, 318, 319, 320, 321, 322, 323, 324, 325, 326, 327328, 329, 330, 331, 332, 333, 334, 335, 336, 337, 338, 339, 340, 341, 342, 343, 344, 345, 346, 347, 348, 349, 350, 351, 352, 353, 354, 355, 356, 357, 30 358, 359, 360, 361, 362, 363, 364, 365, 366, 367, 368, 369, 370, 371, 372, 373, 374, 375, 376, 377, 378, 379, 380, 381, 382, 383, 384, 385, 386, 387, 388, 389, 390, 391, 392, 393, 394, 395, 396, 397, 398, 399, 400, 401, 402, 403, 404, 405, 406, 407, 408, 409, 410, 411, 412, 413, 414, 415, 416, 417, 418, 419, 420, 421, 422, 423, 424, 425, 426, 427, 428, 429, 430, 431, 432, 433, 434, 435, 436, 437, 438, 439, 440, 441, 442, 443, 444, 445, 446, 447, 35 448, 449, 450, 451, 452, 453, 454, 455, 456, 457, 458, 459, 460, 461, 462, 463, 464, 465, 466, 467, 468, 469, 470, 471, 472, 473, 474, 475, 476, 477, 478, 479, 480, 481, 482, 483, 484, 485, 486, 487, 488, 489, 490, 491, 492, 493, 494, 495, 496, 497, 498, 499, 500, 501, 502, 503, 504, 505, 506, 507, 508, 509, 510, 511, 512, 513, 514, 515, 516, 517, 518, 519, 520, 521, 522, 523, 524, 525, 526, 527, 528, 529, 530, 531, 532, 533, 534, 535, 536, 537, 40 538, 539, 540, 541, 542, 543, 544, 545, 546, 547, 548, 549, 550, 551, 552, 553, 554, 555, 556, 557, 558, 559, 560, 561, 562, 563, 564, 565, or a variant thereof.


In another embodiment the present invention refers to a method of increasing or enhancing the uracilpyridine herbicide tolerance or resistance of a plant, the method comprising overexpressing a nucleic acid encoding a herbicide resistant or tolerant PPO polypeptide which comprises the amino acid sequence of SEQ ID NO: 240, 241, 242, 243, 244, 245, 246, 247, 248, 249, 250, 251, 252, 253, 254, 255, 256, 257, 258, 259, 260, 261, 262, or 264.


Additionally, in certain embodiments, the nucleic acids of the present invention can be stacked with any combination of polynucleotide sequences of interest in order to create plants with a desired phenotype. For example, the nucleic acids of the present invention may be stacked with any other polynucleotides encoding polypeptides having pesticidal and/or insecticidal activity, such as, for example, the Bacillus thuringiensis toxin proteins (described in U.S. Pat. Nos. 5,366,892; 5,747,450; 5,737,514; 5,723,756; 5,593,881; and Geiser et al (1986) Gene 48: 109),


By way of example, polynucleotides that may be stacked with the nucleic acids of the present invention include nucleic acids encoding polypeptides conferring resistance to pests/pathogens such as viruses, nematodes, insects or fungi, and the like. Exemplary polynucleotides that may be stacked with nucleic acids of the invention include polynucleotides encoding: polypeptides having pesticidal and/or insecticidal activity, such as other Bacillus thuringiensis toxic proteins (described in U.S. Pat. Nos. 5,366,892; 5,747,450; 5,737,514; 5,723,756; 5,593,881; and Geiser et al., (1986) Gene 48:109), lectins (Van Damme et al. (1994) Plant Mol. Biol. 24:825, pentin (described in U.S. Pat. No. 5,981,722), and the like; traits desirable for disease or herbicide resistance (e.g., fumonisin detoxification genes (U.S. Pat. No. 5,792,931); avirulence and disease resistance genes (Jones et al. (1994) Science 266:789; Martin et al., (1993) Science 262:1432; Mindrinos et al. (1994) Cell 78:1089); acetolactate synthase (ALS) mutants that lead to herbicide resistance such as the S4 and/or Hra mutations; glyphosate resistance (e.g., 5-enol-pyrovyl-shikimate-3-phosphate-synthase (EPSPS) gene, described in U.S. Pat. Nos. 4,940,935 and 5,188,642; or the glyphosate N-acetyltransferase (GAT) gene, described in Castle et al. (2004) Science, 304:1151-1154; and in U.S. Patent App. Pub. Nos. 20070004912, 20050246798, and 20050060767)); glufosinate resistance (e.g, phosphinothricin acetyl transferase genes PAT and BAR, described in U.S. Pat. Nos. 5,561,236 and 5,276,268); resistance to herbicides including sulfonyl urea, DHT (2,4D), and PPO herbicides (e.g., glyphosate acetyl transferase, aryloxy alkanoate dioxygenase, acetolactate synthase, and protoporphyrinogen oxidase); a cytochrome P450 or variant thereof that confers herbicide resistance or tolerance to, inter alia, HPPD herbicides (U.S. patent application Ser. No. 12/156,247; U.S. Pat. Nos. 6,380,465; 6,121,512; 5,349,127; 6,649,814; and 6,300,544; and PCT Patent App. Pub. No. WO2007000077); and traits desirable for processing or process products such as high oil (e.g., U.S. Pat. No. 6,232,529); modified oils (e.g., fatty acid desaturase genes (U.S. Pat. No. 5,952,544; WO 94/11516)); modified starches (e.g., ADPG pyrophosphorylases (AGPase), starch synthases (SS), starch branching enzymes (SBE), and starch debranching enzymes (SDBE)); and polymers or bioplastics (e.g., U.S. Pat. No. 5,602,321; beta-ketothiolase, polyhydroxybutyrate synthase, and acetoacetyl-CoA reductase (Schubert et al. (1988) J. Bacteriol. 170:5837-5847) facilitate expression of polyhydroxyalkanoates (PHAs)); the disclosures of which are herein incorporated by reference.


In a preferred embodiment, the plant comprises at least one additional heterologous nucleic acid comprising a nucleotide sequence encoding a herbicide tolerance enzyme selected, for example, from the group consisting of 5-enolpyruvylshikimate-3-phosphate synthase (EPSPS), Glyphosate acetyl transferase (GAT), cytochrome P450 monooxygenase, phosphinothricin acetyltransferase (PAT), Acetohydroxyacid synthase (AHAS; EC 4.1.3.18, also known as acetolactate synthase or ALS), hydroxyphenyl pyruvate dioxygenase (HPPD), Phytoene desaturase (PD) and dicamba degrading enzymes as disclosed in WO 02/068607, or phenoxyaceticacid- and phenoxypropionicacid-derivative degrading enzymes as disclosed in WO 2008141154 or WO 2005107437. The combinations generated can also include multiple copies of any one of the polynucleotides of interest.


Generally, the term “herbicide” is used herein to mean an active ingredient that kills, controls or otherwise adversely modifies the growth of plants. The preferred amount or concentration of the herbicide is an “effective amount” or “effective concentration.” By “effective amount” and “effective concentration” is intended an amount and concentration, respectively, that is sufficient to kill or inhibit the growth of a similar, wild-type, plant, plant tissue, plant cell, or host cell, but that said amount does not kill or inhibit as severely the growth of the herbicide-resistant plants, plant tissues, plant cells, and host cells of the present invention. Typically, the effective amount of a herbicide is an amount that is routinely used in agricultural production systems to kill weeds of interest. Such an amount is known to those of ordinary skill in the art. Herbicidal activity is exhibited by herbicides useful for the the present invention when they are applied directly to the plant or to the locus of the plant at any stage of growth or before planting or emergence. The effect observed depends upon the plant species to be controlled, the stage of growth of the plant, the application parameters of dilution and spray drop size, the particle size of solid components, the environmental conditions at the time of use, the specific compound employed, the specific adjuvants and carriers employed, the soil type, and the like, as well as the amount of chemical applied. These and other factors can be adjusted as is known in the art to promote non-selective or selective herbicidal action. Generally, it is preferred to apply the herbicide postemergence to relatively immature undesirable vegetation to achieve the maximum control of weeds.


By a “herbicide-tolerant” or “herbicide-resistant” plant, it is intended that a plant that is tolerant or resistant to at least one herbicide at a level that would normally kill, or inhibit the growth of, a normal or wild-type plant. By “herbicide-tolerant wildtype or mutated PPO protein” or “herbicide -resistant wildtype or mutated PPO protein”, it is intended that such a PPO protein displays higher PPO activity, relative to the PPO activity of a wild-type PPO protein, when in the presence of at least one herbicide that is known to interfere with PPO activity and at a concentration or level of the herbicide that is known to inhibit the PPO activity of the wild-type mutated PPO protein. Furthermore, the PPO activity of such a herbicide-tolerant or herbicide-resistant mutated PPO protein may be referred to herein as “herbicide-tolerant” or “herbicide-resistant” PPO activity.


In a particularly preferred embodiment, the herbicides useful for the present invention refer uracilpyridines of formula (I)




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    • wherein the substituents have the following meanings:

    • R1 hydrogen, NH2, C1-C6-alkyl or C3-C6-alkynyl;

    • R2 hydrogen, C1-C6-alkyl or C1-C6-haloalkyl;

    • R3 hydrogen or C1-C6-alkyl;

    • R4 H or halogen;

    • R5 halogen, CN, NO2, NH2, CF, or C(═S)NH2;

    • R6 H, halogen, CN, C1-C3-alkyl, C1-C3-haloalkyl, C1-C3-alkoxy, C1-C3-haloalkoxy, C1-C3-alkylthio, (C1-C3-alkyl)amino, di(C1-C3-alkyl)amino, C1-C3-alkoxy-C1-C3-alkyl, C1-C3-alkoxycarbonyl;

    • R7 H, halogen, C1-C3-alkyl, C1-C3-alkoxy;

    • R8 OR9, SR9, NR10R11, NR9OR9, NR9S(O)2R10 or NR9S(O)2NR10R11, wherein
      • R9 is hydrogen, C1-C6-alkyl, C3-C6-alkenyl, C3-C6-alkynyl, C1-C6-haloalkyl, C3-C6-haloalkenyl, C3-C6-haloalkynyl, C1-C6-cyanoalkyl, C1-C6-alkoxy-C1-C6-alkyl, C1-C6-alkoxy-C1-C6-alkoxy-C1-C6-alkyl, di(C1-C6-alkoxa1-C6-alkyl, C1-C6-haloalkoxy-C1-C6-alkyl, C3-C6-alkenyloxy-C1-C6-alkyl, C3-C6-haloalkenyloxy-C1-C6-alkyl, C3-C6-alkenyloxy-C1-C6-alkoxy-C1-C6-alkyl, C1-C6-alkylthio-C1-C6-alkyl, C1-C6-alkylsulfinyl-C1-C6-alkyl, C1-C6-alkylsulfonyl-C1-C6-alkyl, C1-C6-alkylcarbonyl-C1-C6-alkyl, C1-C6-alkoxycarbonyl-C1-C6-alkyl, C1-C6-haloalkoxycarbonyl-C1-C6-alkyl, C3-C6-alkenyloxycarbonyl-C1-C6-alkyl, C3-C6-alkynyloxycarbonyl-C1-C6-alkyl, amino, (C1-C6-alkyl)amino, di(C1-C6-alkyl)amino, (C1-C6-alkylcarbonyl)amino, amino-C1-C6-alkyl, (C1-C6-alkyl)amino-C1-C6-alkyl, di(C1-C6-alkyl)amino-C1-C6-alkyl, aminocarbonyl-C1-C6-alkyl, (C1-C6-alkyl)aminocarbonyl-C1-C6-alkyl, di(C1-C6-alkyl)aminocarbonyl-C1-C6-alkyl,
        • —N═CR12R13, wherein R12 and R13 independently of one another are H, C1-C4-alkyl or phenyl;
        • C3-C6-cycloalkyl, C3-C6-cycloalkyl-C1-C6-alkyl, C3-C6-heterocyclyl, C3-C6-heterocyclyl-C1-C6-alkyl, phenyl, phenyl-C1-C4-alkyl or a 5- or 6 membered heteroaryl,
          • wherein each cycloalkyl, heterocyclyl, phenyl or heteroaryl ring can be substituted by one to four substituents selected from R14 or a 3- to 7-membered carbocyclus,
          •  which carbocyclus optionally has in addition to carbon atoms one or two ring members selected from the group consisting of —N═N—, —C(═O)—, —O— and —S—, and
          •  which carbocyclus is optionally substituted with one to four substituents selected from R14;
          •   wherein R14 is halogen, NO2, CN, C1-C4 alkyl, C1-C4-halo-alkyl, C1-C4-alkoxy or C1-C4-alkoxycarbonyl;
      • R10, R11 independently of one another are R9, or together form a 3- to 7-membered carbocyclus,
        • which carbocyclus optionally has in addition to carbon atoms one or two ring members selected from the group consisting of —N(R12)—, —N═N—, —C(═O)—, —O— and —S—, and
          • which carbocyclus is optionally substituted with one to four substituents selected from R″;

    • n 1 to 3;

    • Q CH2, O, S, SO, SO2, NH or (C1-C3-alkyl)N;

    • W O or S;

    • X NH, NC3, O or S;

    • Y O or S;

    • Z phenyl, pyridyl, pyridazinyl, pyrimidinyl or pyrazinyl,
      • each of which is optionally substituted by 1 to 4 substituents selected from the group consisting of halogen, CN, C1-C6-alkyl, C1-C6-haloalkyl, C1-C6-alkoxy, C1-C6-haloalkoxy;

    • including their agriculturally acceptable salts or derivatives, provided the compounds of formula (I) have a carboxyl group.





If the uracilpyridines of formula (I), the herbicidal compounds B and/or the safeners C as described herein are capable of forming geometrical isomers, for example E/Z isomers, it is possible to use both, the pure isomers and mixtures thereof, in the compositions according to the invention.


If the uracilpyridines of formula (I), the herbicidal compounds B and/or the safeners C as described herein have one or more centres of chirality and, as a consequence, are present as enantiomers or diastereomers, it is possible to use both, the pure enantiomers and diastereomers and their mixtures, in the compositions according to the invention.


Within the substituents of the uracilpyridines of formula (I), instead of hydrogene also the corresponding isotope deuterium can be used.


If the uracilpyridines of formula (I), the herbicidal compounds B and/or the safeners C as described herein have ionizable functional groups, they can also be employed in the form of their agriculturally acceptable salts. Suitable are, in general, the salts of those cations and the acid addition salts of those acids whose cations and anions, respectively, have no adverse effect on the activity of the active compounds.


Preferred cations are the ions of the alkali metals, preferably of lithium, sodium and potassium, of the alkaline earth metals, preferably of calcium and magnesium, and of the transition metals, preferably of manganese, copper, zinc and iron, further ammonium and substituted ammonium in which one to four hydrogen atoms are replaced by C1-C4-alkyl, hydroxy-C1-C4-alkyl, C1-C4-alkoxy-C1-C4-alkyl, hydroxy-C1-C4-alkoxy-C1-C4-alkyl, phenyl or benzyl, preferably ammonium, methylammonium, isopropylammonium, dimethylammonium, diethylammonium, diisopropylammonium, trimethylammonium, triethylammonium, tris(isopropyl)ammonium, heptylammonium, dodecylammonium, tetradecylammonium, tetramethylammonium, tetraethylammonium, tetrabutylammonium, 2-hydroxyethyl-ammonium (olamine salt), 2-(2-hydroxyeth-1-oxy)eth-1-ylammonium (diglycolamine salt), di(2-hydroxyeth-1-yl)ammonium (diolamine salt), tris(2-hydroxyethyl)ammonium (trolamine salt), tris(2-hydroxypropyl)ammonium, benzyltrimethylammonium, benzyltriethylammonium, N,N,N-trimethylethanolammonium (choline salt), furthermore phosphonium ions, sulfonium ions, preferably tri(C1-C4-alkyl)sulfonium, such as trimethylsulfonium, and sulfoxonium ions, preferably tri(C1-C4-alkyl)sulfoxonium, and finally the salts of polybasic amines such as N,N-bis-(3-aminopropyl)methylamine and diethylenetriamine.


Also preferred cations are the ions of the alkali metals, preferably of lithium, sodium and potassium, of the alkaline earth metals, preferably of calcium and magnesium, and of the transition metals, preferably of manganese, copper, zinc and iron, further ammonium and substituted ammonium in which one to four hydrogen atoms are replaced by C1-C4-alkyl, hydroxy-C1-C4-alkyl, C1-C4-alkoxy-C1-C4-alkyl, hydroxy-C1-C4-alkoxy-C1-C4-alkyl, phenyl or benzyl, preferably ammonium, methylammonium, isopropylammonium, dimethylammonium, diisopropylammonium, trimethylammonium, heptylammonium, dodecylammonium, tetradecylammonium, tetramethylammonium, tetraethylammonium, tetrabutylammonium, 2-hydroxyethylammonium (olamine salt), 2-(2-hydroxyeth-1-oxy)eth-1-ylammonium (diglycolamine salt), di(2-hydroxyeth-1-yl)ammonium (diolamine salt), tris(2-hydroxyethyl)ammonium (trolamine salt), tris(2-hydroxypropyl)ammonium, benzyltrimethylammonium, benzyltriethylammonium, N,N,N-trimethylethanolammonium (choline salt), furthermore phosphonium ions, sulfonium ions, preferably tri(C1-C4-alkyl)sulfonium, such as trimethylsulfonium, and sulfoxonium ions, preferably tri(C1-C4-alkyl)sulfoxonium, and finally the salts of polybasic amines such as N,N-bis-(3-aminopropyl)methylamine and diethylenetriamine.


Anions of useful acid addition salts are primarily chloride, bromide, fluoride, iodide, hydrogensulfate, methylsulfate, sulfate, dihydrogenphosphate, hydrogenphosphate, nitrate, bicarbonate, carbonate, hexafluorosilicate, hexafluorophosphate, benzoate and also the anions of C1-C4-alkanoic acids, preferably formate, acetate, propionate and butyrate. Uracilpyridines of formula (I), herbicidal compounds B and/or safeners C as described herein having a carboxyl group can be employed in the form of the acid, in the form of an agriculturally suitable salt as mentioned above or else in the form of an agriculturally acceptable derivative, for example as amides, such as mono- and di-C1-C6-alkylamides or arylamides, as esters, for example as allyl esters, propargyl esters, C1-C10-alkyl esters, alkoxyalkyl esters, tefuryl ((tetrahydrofuran-2-yl)methyl) esters and also as thioesters, for example as C1-C10-alkylthio esters. Preferred mono- and di-C1-C6-alkylamides are the methyl and the dimethylamides. Preferred arylamides are, for example, the anilides and the 2-chloroanilides. Preferred alkyl esters are, for example, the methyl, ethyl, propyl, isopropyl, butyl, isobutyl, pentyl, mexyl (1-methylhexyl), meptyl (1-methylheptyl), heptyl, octyl or isooctyl (2-ethylhexyl) esters. Preferred C1-C4-alkoxy-C1-C4-alkyl esters are the straight-chain or branched C1-C4-alkoxy ethyl esters, for example the 2-methoxyethyl, 2-ethoxyethyl, 2-butoxyethyl (butotyl), 2-butoxypropyl or 3-butoxypropyl ester. An example of a straight-chain or branched C1-C10-alkylthio ester is the ethylthio ester.


The organic moieties mentioned in the definition of the variables Rl to R″ and Ra to Re, are—like the term halogen—collective terms for individual enumerations of the individual group members. The term halogen denotes in each case fluorine, chlorine, bromine or iodine. AH hydrocarbon chains, e.g. all alkyl, alkenyl, alkynyl, alkoxy chains, can be straight-chain or branched, the prefix Cn-Cm denoting in each case the possible number of carbon atoms in the group.


Examples of such meanings are:


C1-C3-alkyl and also the C1-C3-alkyl moieties of di(C1-C3-alkyl)amino, C1-C3-alkoxy-C1-C3-alkyl: for example CH3, C2H5, n-propyl and CH(CH3)2;


C1-C4-alkyl and also the C1-C4-alkyl moieties of phenyl-C1-C4-alkyl: for example CH3, C2H5, n-propyl, CH(CH3)2, n-butyl, CH(CH3)-C2H5, CH2-CH(CH3)2 and C(CH3)3;


C1-C6-alkyl and also the C1-C6-alkyl moieties of C1-C6-cyanoalkyl, C1-C6-alkyoxy-C1-C6-alkyl, C1-C6-alkoxy-C1-C6-alkoxy-C1-C6-alkyl, di(C1-C6-alkoxa1-C6-alkyl, C1-C6-haloalkoxy-C1-C6-alkyl, C3-C6-alkenyloxy-C1-C6-alkyl, C3-C6-haloalkenyloxy-C1-C6-alkyl, C3-C6-alkenyloxy-C1-C6-alkoxy-C1-C6-alkyl, C1-C6-alkylthio-C1-C6-alkyl, C1-C6-alkylsulfinyl-C1-C6-alkyl, C1-C6-alkylsulfonyl-C1-C6-alkyl, C1-C6-alkylcarbonyl-C1-C6-alkyl, C1-C6-alkoxycarbonyl-C1-C6-alkyl, C1-C6-haloalkoxycarbonyl-C1-C6-alkyl, C3-C6-alkenyloxycarbonyl-C1-C6-alkyl, C3-C6-alkynyloxycarbonyl-C1-C6-alkyl, (C1-C6-alkylcarbonyl)amino, amino-C1-C6-alkyl, (C1-C6-alkyl)amino-C1-C6-alkyl, di(C1-C6-alkyl)amino-C1-C6-alkyl, aminocarbonyl-C1-C6-alkyl, (C1-C6-alkyl)aminocarbonyl-C1-C6-alkyl, di(C1-C6-alkyl)aminocarbonyl-C1-C6-alkyl, C3-C6-cycloalkyl-C1-C6-alkyl, C3-C6-heterocyclyl-C1-C6-alkyl: C1-C4-alkyl as mentioned above, and also, for example, n-pentyl, 1-methylbutyl, 2-methylbutyl, 3-methylbutyl, 2,2-dimethylpropyl, 1-ethylpropyl, n-hexyl, 1,1-dimethylpropyl, 1,2-dimethylpropyl, 1-methylpentyl, 2-methylpentyl, 3-methylpentyl, 4-methylpentyl, 1,1-dimethylbutyl, 1,2-dimethylbutyl, 1,3-dimethylbutyl, 2,2-dimethylbutyl, 2,3-dimethylbutyl, 3,3-dimethylbutyl, 1-ethylbutyl, 2-ethylbutyl, 1,1,2-trimethylpropyl, 1,2,2-trimethylpropyl, 1-ethyl-1-methylpropyl or 1-ethyl-2-methylpropyl, preferably methyl, ethyl, n-propyl, 1-methylethyl, n-butyl, 1,1-dimethylethyl, n-pentyl or n-hexyl;


C1-C3-haloalkyl: C1-C3-alkyl as mentioned above which is partially or fully substituted by fluorine, chlorine, bromine and/or iodine, for example, chloromethyl, dichloromethyl, trichloromethyl, fluoromethyl, difluoromethyl, trifluoromethyl, chlorofluoromethyl, dichlorofluoromethyl, chlorodifluoromethyl, bromomethyl, iodomethyl, 2-fluoroethyl, 2-chloroethyl, 2-bromoethyl, 2-iodoethyl, 2,2-difluoroethyl, 2,2,2-trifluoroethyl, 2-chloro-2-fluoroethyl, 2-chloro-2,2-difluoroethyl, 2,2-dichloro-2-fluoroethyl, 2,2,2-trichloroethyl, pentafluoroethyl, 2-fluoropropyl, 3-fluoropropyl, 2,2-difluoropropyl, 2,3-difluoropropyl, 2-chloropropyl, 3-chloropropyl, 2,3-dichloropropyl, 2-bromopropyl, 3-bromopropyl, 3,3,3-trifluoropropyl, 3,3,3-trichloropropyl, 2,2,3,3,3-pentafluoropropyl, heptafluoropropyl, 1-(fluoromethyl)-2-fluoroethyl, 1-(chloromethyl)-2-chloroethyl, 1-(bromomethyl)-2-bromoethyl;


C1-C4-haloalkyl: C1-C4-alkyl as mentioned above which is partially or fully substituted by fluorine, chlorine, bromine and/or iodine, for example, chloromethyl, dichloromethyl, trichloromethyl, fluoromethyl, difluoromethyl, trifluoromethyl, chlorofluoromethyl, dichlorofluoromethyl, chlorodifluoromethyl, bromomethyl, iodomethyl, 2-fluoroethyl, 2-chloroethyl, 2-bromoethyl, 2-iodoethyl, 2,2-difluoroethyl, 2,2,2-trifluoroethyl, 2-chloro-2-fluoroethyl, 2-chloro-2,2-difluoroethyl, 2,2-dichloro-2-fluoroethyl, 2,2,2-trichloroethyl, pentafluoroethyl, 2-fluoropropyl, 3-fluoropropyl, 2,2-difluoropropyl, 2,3-difluoropropyl, 2-chloropropyl, 3-chloropropyl, 2,3-dichloropropyl, 2-bromopropyl, 3-bromopropyl, 3,3,3-trifluoropropyl, 3,3,3-trichloropropyl, 2,2,3,3,3-pentafluoropropyl, heptafluoropropyl, 1-(fluoromethyl)-2-fluoroethyl, 1-(chloromethyl)-2-chloroethyl, 1-(bromomethyl)-2-bromoethyl, 4-fluorobutyl, 4-chlorobutyl, 4-bromobutyl, nonafluorobutyl, 1,1,2,2,-tetrafluoroethyl and 1-trifluoromethyl-1,2,2,2-tetrafluoroethyl;


C1-C6-haloalkyl: C1-C4-haloalkyl as mentioned above, and also, for example, 5-fluoropentyl, 5-chloropentyl, 5-bromopentyl, 5-iodopentyl, undecafluoropentyl, 6-fluorohexyl, 6-chlorohexyl, 6-bromohexyl, 6-iodohexyl and dodecafluorohexyl;


C3-C6-alkenyl and also the C3-C6-alkenyl moieties of C3-C6-alkenyloxy-C1-C6-alkyl, C3-C6-alkenyloxy-C1-C6-alkoxy-C1-C6-alkyl, C3-C6-alkenyloxycarbonyl-C1-C6-alkyl: for example 1-propenyl, 2-propenyl, 1-methylethenyl, 1-butenyl, 2-butenyl, 3-butenyl, 1-methyl-1-propenyl, 2-methyl-1-propenyl, 1-methyl-2-propenyl, 2-methyl-2-propenyl, 1-pentenyl, 2-pentenyl, 3-pentenyl, 4-pentenyl, 1-methyl-1-butenyl, 2-methyl-1-butenyl, 3-methyl-1-butenyl, 1-methyl-2-butenyl, 2-methyl-2-butenyl, 3-methyl-2-butenyl, 1-methyl-3-butenyl, 2-methyl-3-butenyl, 3-methyl-3-butenyl, 1,1-dimethyl-2-propenyl, 1,2-dimethyl-1-propenyl, 1,2-dimethyl-2-propenyl, 1-ethyl-1-propenyl, 1-ethyl-2-propenyl, 1-hexenyl, 2-hexenyl, 3-hexenyl, 4-hexenyl, 5-hexenyl, 1-methyl-1-pentenyl, 2-methyl-1-pentenyl, 3-methyl-1-pentenyl, 4-methyl-1-pentenyl, 1-methyl-2-pentenyl, 2-methyl-2-pentenyl, 3-methyl-2-pentenyl, 4-methyl-2-pentenyl, 1-methyl-3-pentenyl, 2-methyl-3-pentenyl, 3-methyl-3-pentenyl, 4-methyl-3-pentenyl, 1-methyl-4-pentenyl, 2-methyl-4-pentenyl, 3-methyl-4-pentenyl, 4-methyl-4-pentenyl, 1,1-dimethyl-2-butenyl, 1,1-dimethyl-3-butenyl, 1,2-dimethyl-1-butenyl, 1,2-dimethyl-2-butenyl, 1,2-dimethyl-3-butenyl, 1,3-dimethyl-1-butenyl, 1,3-dimethyl-2-butenyl, 1,3-dimethyl-3-butenyl, 2,2-dimethyl-3-butenyl, 2,3-dimethyl-1-butenyl, 2,3-dimethyl-2-butenyl, 2,3-dimethyl-3-butenyl, 3,3-dimethyl-1-butenyl, 3,3-dimethyl-2-butenyl, 1-ethyl-1-butenyl, 1-ethyl-2-butenyl, 1-ethyl-3-butenyl, 2-ethyl-1-butenyl, 2-ethyl-2-butenyl, 2-ethyl-3-butenyl, 1,1,2-trimethyl-2-propenyl, 1-ethyl-1-methyl-2-propenyl, 1-ethyl-2-methyl-1-propenyl and 1-ethyl-2-methyl-2-propenyl;


C3-C6-haloalkenyl and also the C3-C6-haloalkenyl moieties of C3-C6-haloalkenyloxy-C1-C6-alkyl: a C3-C6-alkenyl radical as mentioned above which is partially or fully substituted by fluorine, chlorine, bromine and/or iodine, for example 2-chloroprop-2-en-1-yl, 3-chloroprop-2-en-1-yl, 2,3-dichloroprop-2-en-1-yl, 3,3-dichloroprop-2-en-1-yl, 2,3,3-trichloro-2-en-1-yl, 2,3-dichlorobut-2-en-1-yl, 2-bromoprop-2-en-1-yl, 3-bromoprop-2-en-1-yl, 2,3-dibromoprop-2-en-1-yl, 3,3-dibromoprop-2-en-1-yl, 2,3,3-tribromo-2-en-1-yl or 2,3-dibromobut-2-en-1-yl;


C3-C6-alkynyl and also the C3-C6-alkynyl moieties of C3-C6-alkynyloxycarbonyl-C1-C6-alkyl: for example 1-propynyl, 2-propynyl, 1-butynyl, 2-butynyl, 3-butynyl, 1-methyl-2-propynyl, 1-pentynyl, 2-pentynyl, 3-pentynyl, 4-pentynyl, 1-methyl-2-butynyl, 1-methyl-3-butynyl, 2-methyl-3-butynyl, 3-methyl-1-butynyl, 1,1-dimethyl-2-propynyl, 1-ethyl-2-propynyl, 1-hexynyl, 2-hexynyl, 3-hexynyl, 4-hexynyl, 5-hexynyl, 1-methyl-2-pentynyl, 1-methyl-3-pentynyl, 1-methyl-4-pentynyl, 2-methyl-3-pentynyl, 2-methyl-4-pentynyl, 3-methyl-1-pentynyl, 3-methyl-4-pentynyl, 4-methyl-1-pentynyl, 4-methyl-2-pentynyl, 1,1-dimethyl-2-butynyl, 1,1-dimethyl-3-butynyl, 1,2-dimethyl-3-butynyl, 2,2-dimethyl-3-butynyl, 3,3-dimethyl-1-butynyl, 1-ethyl-2-butynyl, 1-ethyl-3-butynyl, 2-ethyl-3-butynyl and 1-ethyl-1-methyl-2-propynyl;


C3-C6-haloalkynyl: a C3-C6-alkynyl radical as mentioned above which is partially or fully substituted by fluorine, chlorine, bromine and/or iodine, for example 1,1-difluoroprop-2-yn-1-yl, 3-chloroprop-2-yn-1-yl, 3-bromoprop-2-yn-1-yl, 3-iodoprop-2-yn-1-yl, 4-fluorobut-2-yn-1-yl, 4-chlorobut-2-yn-1-yl, 1,1-difluorobut-2-yn-1-yl, 4-iodobut-3-yn-1-yl, 5-fluoropent-3-yn-1-yl, 5-iodopent-4-yn-1-yl, 6-fluorohex-4-yn-1-yl or 6-iodohex-5-yn-1-yl;


C1-C3-alkoxy and also the C1-C3-alkoxy moieties of C1-C3-alkoxy-C1-C3-alkyl, C1-C3-alkoxycarbonyl: for example methoxy, ethoxy, propoxy;


- C1-C4-alkoxy and also the C1-C4-alkoxy moieties of C1-C4-alkoxycarbonyl: for example methoxy, ethoxy, propoxy, 1-methylethoxy butoxy, 1-methylpropoxy, 2-methylpropoxy and 1,1-dimethylethoxy;


C1-C6-alkoxy and also the C1-C6-alkoxy moieties of C1-C6-alkyoxy-C1-C6-alkyl, C1-C6-alkoxy-C1-C6-alkoxy-C1-C6-alkyl, di(C1-C6-alkoxa1-C6-alkyl, C3-C6-alkenyloxy-C1-C6-alkoxy-C1-C6-alkyl, C1-C6-alkoxycarbonyl-C1-C6-alkyl: C1-C4-alkoxy as mentioned above, and also, for example, pentoxy, 1-methylbutoxy, 2-methylbutoxy, 3-methoxylbutoxy, 1,1-dimethylpropoxy, 1,2-dimethylpropoxy, 2,2-dimethylpropoxy, 1-ethylpropoxy, hexoxy, 1-methylpentoxy, 2-methylpentoxy, 3-methylpentoxy, 4-methylpentoxy, 1,1-dimethylbutoxy, 1,2-dimethylbutoxy, 1,3-dimethylbutoxy, 2,2-dimethylbutoxy, 2,3-dimethylbutoxy, 3,3-dimethylbutoxy, 1-ethylbutoxy, 2-ethylbutoxy, 1,1,2-trimethylpropoxy, 1,2,2-trimethylpropoxy, 1-ethyl-1-methylpropoxy and 1-ethyl-2-methylpropoxy.


C1-C3-haloalkoxy: a C1-C3-alkoxy radical as mentioned above which is partially or fully substituted by fluorine, chlorine, bromine and/or iodine, i.e., for example, fluoromethoxy, difluoromethoxy, trifluoromethoxy, chlorodifluoromethoxy, bromodifluoromethoxy, 2-fluoroethoxy, 2-chloroethoxy, 2-bromomethoxy, 2-iodoethoxy, 2,2-difluoroethoxy, 2,2,2-trifluoroethoxy, 2-chloro-2-fluoroethoxy, 2-chloro-2,2-difluoroethoxy, 2,2-dichloro-2-fluoroethoxy, 2,2,2-trichloroethoxy, pentafluoroethoxy, 2-fluoropropoxy, 3-fluoropropoxy, 2-chloropropoxy, 3-chloropropoxy, 2-bromopropoxy, 3-bromopropoxy, 2,2-difluoropropoxy, 2,3-difluoropropoxy, 2,3-dichloropropoxy, 3,3,3-trifluoropropoxy, 3,3,3-trichloropropoxy, 2,2,3,3,3-pentafluoropropoxy, heptafluoropropoxy, 1-(fluoromethyl)-2-fluoroethoxy, 1-(chloromethyl)-2-chloroethoxy, 1-(bromomethyl)-2-bromoethoxy;


C1-C4-haloalkoxy: a C1-C4-alkoxy radical as mentioned above which is partially or fully substituted by fluorine, chlorine, bromine and/or iodine, i.e., for example, fluoromethoxy, difluoromethoxy, trifluoromethoxy, chlorodifluoromethoxy, bromodifluoromethoxy, 2-fluoroethoxy, 2-chloroethoxy, 2-bromomethoxy, 2-iodoethoxy, 2,2-difluoroethoxy, 2,2,2-trifluoroethoxy, 2-chloro-2-fluoroethoxy, 2-chloro-2,2-difluoroethoxy, 2,2-dichloro-2-fluoroethoxy, 2,2,2-trichloroethoxy, pentafluoroethoxy, 2-fluoropropoxy, 3-fluoropropoxy, 2-chloropropoxy, 3-chloropropoxy, 2-bromopropoxy, 3-bromopropoxy, 2,2-difluoropropoxy, 2,3-difluoropropoxy, 2,3-dichloropropoxy, 3,3,3-trifluoropropoxy, 3,3,3-trichloropropoxy, 2,2,3,3,3-pentafluoropropoxy, heptafluoropropoxy, 1-(fluoromethyl)-2-fluoroethoxy, 1-(chloromethyl)-2-chloroethoxy, 1-(bromomethyl)-2-bromoethoxy, 4-fluorobutoxy, 4-chlorobutoxy, 4-bromobutoxy and nonafluorobutoxy;


C1-C6-haloalkoxy and also the C1-C6-haloalkoxy moieties of C1-C6-haloalkoxy-C1-C6-alkyl, C1-C6-haloalkoxycarbonyl-C1-C6-alkyl: a C1-C4-haloalkoxy as mentioned above, and also, for example, 5-fluoropentoxy, 5-chloropentoxy, 5-bromopentoxy, 5-iodopentoxy, undecafluoropentoxy, 6-fluorohexoxy, 6-chlorohexoxy, 6-bromohexoxy, 6-iodohexoxy and dodecafluorohexoxy;


C1-C3-alkylthio: for example methylthio, ethylthio, propylthio, 1-methylethylthio;


C1-C4-alkylthio: for example methylthio, ethylthio, propylthio, 1-methylethylthio, butylthio, 1-methylpropylthio, 2-methylpropylthio and 1,1-dimethylethylthio;


C1-C6-alkylthio and also the C1-C6-alkylthio moieties of C1-C6-alkylthio-C1-C6-alkyl: C1-C4-alkylthio as mentioned above, and also, for example, pentylthio, 1-methylbutylthio, 2-methylbutylthio, 3-methylbutylthio, 2,2-dimethylpropylthio, 1-ethylpropylthio, hexylthio, 1,1-dimethylpropylthio, 1,2-dimethylpropylthio, 1-methylpentylthio, 2-methylpentylthio, 3-methylpentylthio, 4-methylpentylthio, 1,1-dimethylbutylthio, 1,2-dimethylbutylthio, 1,3-dimethylbutylthio, 2,2-dimethylbutylthio, 2,3-dimethylbutylthio, 3,3-dimethylbutylthio, 1-ethylbutylthio, 2-ethylbutylthio, 1,1,2-trimethylpropylthio, 1,2,2-trimethylpropylthio, 1-ethyl-1-methylpropylthio and 1- ethyl-2-methylpropylthio;


C1-C6-alkylsulfinyl (C1-C6-alkyl-S(═O)-) and also the C1-C6-alkylsulfinyl moieties of C1-C6-alkylsulfinyl-C1-C6-alkyl: for example methylsulfinyl, ethylsulfinyl, propylsulfinyl, 1-me-thylethylsulfinyl, butylsulfinyl, 1-methylpropylsulfinyl, 2-methylpropylsulfinyl, 1,1-di-methylethylsulfinyl, pentylsulfinyl, 1-methylbutylsulfinyl, 2-methylbutylsulfinyl, 3-methylbutylsulfinyl, 2,2-dimethylpropylsulfinyl, 1-ethylpropylsulfinyl, 1,1-dimethyl-propylsulfinyl, 1,2-dimethylpropylsulfinyl, hexylsulfinyl, 1-methylpentylsulfinyl, 2-methylpentylsulfinyl, 3-methylpentylsulfinyl, 4-methylpentyl-sulfinyl, 1,1-dimethyl-butylsulfinyl, 1,2-dimethylbutylsulfinyl, 1,3-dimethylbutyl-sulfinyl, 2,2-dimethylbutylsulfinyl, 2,3-dimethylbutylsulfinyl, 3,3-dimethylbutyl-sulfinyl, 1-ethylbutylsulfinyl, 2-ethylbutylsulfinyl, 1,1,2-trimethylpropylsulfinyl, 1,2,2-trimethylpropylsulfinyl, 1-ethyl-1-methylpropylsulfinyl and 1-ethyl-2-methylpropylsulfinyl;


C1-C6-alkylsulfonyl (C1-C6-alkyl-S(O)2-) and also the C1-C6-alkylsulfonyl moieties of C1-C6-alkylsulfonyl-C1-C6-alkyl: for example methylsulfonyl, ethylsulfonyl, propylsulfonyl, 1-methylethylsulfonyl, butylsulfonyl, 1-methylpropylsulfonyl, 2-methyl-propylsulfonyl, 1,1-dimethylethylsulfonyl, pentylsulfonyl, 1-methylbutylsulfonyl, 2-methylbutylsulfonyl, 3-methylbutylsulfonyl, 1,1-dimethylpropylsulfonyl, 1,2-dimethylpropylsulfonyl, 2,2-dimethylpropylsulfonyl, 1-ethylpropylsulfonyl, hexylsulfonyl, 1-methylpentylsulfonyl, 2-methylpentylsulfonyl, 3-methylpentylsulfonyl, 4-methylpentylsulfonyl, 1,1-dimethylbutylsulfonyl, 1,2-dimethylbutylsulfonyl, 1,3-dimethylbutylsulfonyl, 2,2-dimethylbutylsulfonyl, 2,3-dimethylbutylsulfonyl, 3,3-dimethylbutylsulfonyl, 1-ethylbutylsulfonyl, 2-ethylbutylsulfonyl, 1,1,2-trimethyl-propylsulfonyl, 1,2,2-trimethylpropylsulfonyl, 1-ethyl-1-methylpropylsulfonyl and 1-ethyl-2-methylpropylsulfonyl;


(C1-C3-alkyl)amino: for example methylamino, ethylamino, propylamino, 1-methylethyl-amino;


(C1-C4-alkyl)amino: for example methylamino, ethylamino, propylamino, 1-methylethyl-amino, butylamino, 1-methylpropylamino, 2-methylpropylamino or 1,1-dimethylethylamino;


(C1-C6-alkyl)amino: (C1-C4-alkylamino) as mentioned above, and also, for example, pentylamino, 1-methylbutylamino, 2-methylbutylamino, 3-methylbutylamino, 2,2-dimethylpropylamino, 1-ethylpropylamino, hexylamino, 1,1-dimethylpropylamino, 1,2-dimethylpropylamino, 1-methylpentylamino, 2-methylpentylamino, 3-methylpentylamino, 4-methylpentylamino, 1,1-dimethylbutylamino, 1,2-dimethylbutylamino, 1,3-dimethylbutylamino, 2,2-dimethylbutylamino, 2,3-dimethylbutyl-amino 3,3-dimethylbutyl-amino, 1-ethylbutylamino, 2-ethylbutylamino, 1,1,2-trimethylpropylamino, 1,2,2-trimethyl-propylamino, 1-ethyl-1-methylpropylamino or 1-ethyl-2-methylpropylamino;


di(Ci-C6-alkyl)amino: di(C1-C4-alkyl)amino as mentioned above, and also, for example, N-methyl-N-pentylamino, N-methyl-N-(1-methylbutyl)amino, N-methyl-N-(2-methyl-butyl)amino, N-methyl-N-(3-methylbutypamino, N-methyl-N-(2,2-dimethylpropyl)amino, N-methyl-N-(1-ethylpropyl)amino, N-methyl-N-hexylamino, N-methyl-N-(1,1-dimethyl-propyl)amino, N-methyl-N-(1,2-dimethylpropyl)amino, N-methyl-N-(1-methylpentyl)amino, N-methyl-N-(2-methylpentyl)amino, N-methyl-N-(3-methylpentypamino, N-methyl-N-(4-methylpentyl)amino, N-methyl-N-(1,1-dimethylbutyl)amino, N-methyl-N-(1,2-dimethylbutyl)amino, N-methyl-N-(1,3-dimethylbutyl)amino, N-methyl-N-(2,2-dimethyl-butypamino, N-methyl-N-(2,3-dimethylbutyl)amino, N-methyl-N-(3,3-dimethylbutyl)amino, N-methyl-N- (1-ethylbutypamino, N-methyl-N-(2-ethylbutyl)amino, N-methyl-N-(1,1,2-trimethylpropyl)amino, N-methyl-N- (1,2,2-trimethylpropyl)amino, N-methyl-N-(1-ethyl-1-methylpropyl)amino, N-methyl-N- (1-ethyl-2-methylpropyl)amino, N-ethyl-N-pentylamino, N-ethyl-N-(1-methylbutyl)amino, N-ethyl-N-(2-methylbutyl)amino, N-ethyl-N-(3-methylbutyl)amino, N-ethyl-N-(2,2-dimethylpropyl)amino, N-ethyl-N-(1-ethylpropyl)amino, N-ethyl-N-hexylamino, N-ethyl-N-(1,1-dimethylpropyl)amino, N-ethyl-N-(1,2-dimethylpropyl)amino, N-ethyl-N-(1-methylpentyl)amino, N-ethyl-N-(2-methylpentyl)amino, N-ethyl-N-(3-methylpentypamino, N-ethyl-N-(4-methylpentyl)amino, N-ethyl-N-(1,1-dimethylbutyl)amino, N-ethyl-N-(1,2-dimethylbutyl)amino, N-ethyl-N-(1,3-dimethylbutyl)amino, N-ethyl-N-(2,2-dimethylbutyl)amino, N-ethyl-N-(2,3-dimethylbutyl)amino, N-ethyl-N-(3,3-dimethylbutyl)amino, N-ethyl-N-(1-ethylbutyl)amino, N-ethyl-N-(2-ethylbutyl)amino, N-ethyl-N-(1,1,2-trimethylpropyl)amino, N-ethyl-N-(1,2,2-trimethylpropyl)amino, N-ethyl-N-(1-ethyl-1-methylpropyl)amino, N-ethyl-N-(1-ethyl-2-methylpropyl)amino, N-propyl-N-pentylamino, N-butyl-N-pentylamino, N,N-dipentylamino, N-propyl-N-hexylamino, N-butyl-N-hexylamino, N-pentyl-N-hexylamino or N,N-dihexylamino;


C3-C6-cycloalkyl and also the cycloalkyl moieties of C3-C6-cycloalkyl-C1-C6-alkyl: monocyclic saturated hydrocarbons having 3 to 6 ring members, such as cyclopropyl, cyclobutyl, cyclopentyl and cyclohexyl;


C3-C6-heterocyclyl and also the heterocyclyl moieties of C3-C6-heterocyclyl-C1-C6-alkyl: aliphatic heterocycle having 3 to 6 ring members which, in addition to carbon atoms, contains 1 to 4 nitrogen atoms, or 1 to 3 nitrogen atoms and an oxygen or sulphur atom, or an oxygen or a sulphur atom, for example


three- or four-membered heterocycles like 2-oxetanyl, 3-oxetanyl, 2-thietanyl, 3-thietanyl, 1-azetidinyl, 2-azetidinyl, 1-azetinyl, 2-azetinyl; five-membered saturated heterocycles like 2-tetrahydrofuranyl, 3-tetrahydrofuranyl, 2-tetrahydrothienyl, 3-tetrahydrothienyl, 1-pyrrolidinyl,2-pyrrolidinyl, 3-pyrrolidinyl, 3-isoxazolidinyl, 4-isoxazolidinyl, 5-isoxazolidinyl, 2-isothiazolidinyl, 3-isothiazolidinyl, 4-isothiazolidinyl, 5-isothiazolidinyl, 1-pyrazolidinyl, 3-pyrazolidinyl, 4-pyrazolidinyl, 5-pyrazolidinyl, 2-oxazolidinyl, 4-oxazolidinyl, 5-oxazolidinyl, 2-thiazolidinyl, 4-thiazolidinyl, 5-thiazolidinyl, 1-imidazolidinyl, 2-imidazolidinyl, 4-imidazolidinyl, 3-oxazolidinyl, 1,2,4-oxadiazolidin-3-yl, 1,2,4-oxadiazolidin-5-yl, 3-thiazolidinyl, 1,2,4-thiadiazolidin-3-yl, 1,2,4-thiadiazolidin-5-yl, 1,2,4-triazolidin-3-yl, 1,2,4-oxadiazolidin-2-yl, 1,2,4-oxadiazolidin-4-yl, 1,3,4-oxadiazolidin-2-yl, 1,2,4-thiadiazolidin-2-yl, 1,2,4-thiadiazolidin-4-yl, 1,3,4-thiadiazolidin-2-yl, 1,2,4-triazolidin-1-yl, 1,3,4-triazolidin-2-yl; six-membered saturated heterocycles like 1-piperidinyl, 2-piperidinyl, 3-piperidinyl, 4-piperidinyl, 1,3-dioxan-5-yl, 1,4-dioxanyl, 1,3-dithian-5-yl, 1,3-dithianyl, 1,3-oxathian-5-yl, 1,4-oxathianyl, 2-tetrahydropyranyl, 3-tetrahydopyranyl, 4-tetrahydropyranyl, 2-tetrahydrothiopyranyl, 3-tetrahydrothiopyranyl,4-tetrahydrothiopyranyl, 1-hexahydropyridazinyl, 3-hexahydropyridazinyl, 4-hexahydropyridazinyl, 1-hexahydropyrimidinyl, 2-hexahydropyrimidinyl, 4-hexahydropyrimidinyl, 5-hexahydropyrimidinyl, 1-piperazinyl, 2-piperazinyl, 1,3,5-hexahydrotriazin-1-yl, 1,3,5-hexahydrotriazin-2-yl, 1,2,4-hexahydrotriazin-1-yl, 1,2,4-hexahydrotriazin-3-yl, tetrahydro-1,3-oxazin-1-yl, tetrahydro-1,3-oxazin-2-yl, tetrahydro-1,3-oxazin-6-yl, 1-morpholinyl, 2-morpholinyl, 3-morpholinyl;


5- or 6 membered heteroaryl: aromatic heteroaryl having 5 or 6 ring members which, in addition to carbon atoms, contains 1 to 4 nitrogen atoms, or 1 to 3 nitrogen atoms and an oxygen or sulphur atom, or an oxygen or a sulphur atom, for example 5-membered aromatic rings like fury) (for example 2-fury', 3-furyp, thienyl (for example 2-thienyl, 3-thien0, pyrrolyl (for example pyrrol-2-yl, pyrrol-3-0, pyrazolyl (for example pyrazol-3-yl, pyrazol-4-isoxazolyl (for example isoxazol-3-yl, isoxazol-4-yl, isoxazol-5-0, isothiazolyl (for example isothiazol-3-yl, isothiazol-4-yl, isothiazol-5-0, imidazolyl (for example imidazole-2-yl, oxazolyl (for example oxazol-2-yl, oxazol-4-yl, oxazol-5-0, thiazolyl (for example thiazol-2-yl, thiazol-4-yl, oxadiazolyl (for example 1,2,3-oxadiazol-4-yl, 1,2,3-oxadiazol-5-yl, 1,2,4-oxadiazol-3-yl, 1,2,4-oxadiazol-5-yl, 1,3,4-oxadiazol-2-0, thiadiazolyl (for example 1,2,3-thiadiazol-4-yl, 1,2,3-thiadiazol-5-yl, 1,2,4-thiadiazol-3-yl, 1,2,4-thiadiazol-5-yl, 1,3,4-thiadiazolyl-2-0, triazolyl (for example 1,2,3-triazol-4-yl, 1,2,4-triazol-3-0; 1-tetrazolyl; 6-membered aromatic rings like pyridyl (for example pyridine-2-yl, pyridine-3-yl, pyridine-4-0, pyrazinyl (for example pyridazin-3-yl, pyridazin-4-0, pyrimidinyl (for example pyrimidin-2-yl, pyrimidin-4-yl, pyrazin-2-yl, triazinyl (for example 1,3,5-triazin-2-yl, 1,2,4-triazin-3-yl, 1,2,4-triazin-5-yl, 40 1,2,4-triazin-6-yl);


3- to 7-membered carbocyclus: a three- to seven-membered monocyclic, saturated, partial unsaturated or aromatic cycle having three to seven ring members which comprises apart from carbon atoms optionally one or two ring members selected from the group consisting of —N(R12)—, —N═N—, —C(═O)—, —O— and —S—.


The preferred embodiments of the invention mentioned herein below have to be understood as being preferred either independently from each other or in combination with one another.


According to a preferred embodiment of the invention preference is also given to those uracilpyridines of formula (I), wherein the variables, either independently of one another or in combination with one another, have the following meanings:


Preferred are the uracilpyridines of formula (I) wherein


R1 is hydrogen, NH2 or C1-C6-alkyl;

    • preferably is NH2 or C1-C4-alkyl;
    • particularly preferred is NH2 or CH3;
    • also preferably is C1-C6-alkyl;
    • particularly preferred is C1-C4-alkyl;
    • especially preferred is CH3.


Also preferred are the uracilpyridines of formula (I) wherein

    • R2 is C1-C6-alkyl or C1-C6-haloalkyl;
    • preferably is C1-C4-alkyl or C1-C4-haloalkyl;
    • more preferred is C1-C4-haloalkyl;
    • particularly preferred is C1-C2-haloalkyl;
    • especially preferred is CF3.


Also preferred are the uracilpyridines of formula (I) wherein


R3 is H;

    • also preferably is C1-C6-alkyl,
    • particularly preferred is C1-C4-alkyl,
    • especially preferred is CH3.


Also preferred are the uracilpyridines of formula (I) wherein


R4 is H, F or Cl;

    • particularly preferred is H or F;
    • especially preferred is H;
    • also particularly preferred is H or Cl;
    • especially preferred is Cl;
    • also particularly preferred is F or Cl;
    • especially preferred is F.


Also preferred are the uracilpyridines of formula (I) wherein


R5 is halogen or CN;

    • preferably F, Cl, Br or CN;
    • particularly preferred is F, Cl or CN;
    • especially preferred is Cl or CN;
    • more preferred is Cl;
    • also more preferred is CN;
    • also especially preferred is F or Cl;
    • more preferred is F.


Also preferred are the uracilpyridines of formula (I) wherein


R6 is H, C1-C3-alkyl, C1-C3-haloalkyl, C1-C3-alkoxy, C1-C3-haloalkoxy or C1-C3-alkylthio;

    • particularly preferred is H, C1-C3-alkyl, C1-C3-haloalkyl or C1-C3-alkoxy;
    • especially preferred is H, C1-C3-alkyl or C1-C3-alkoxy;
    • more preferred is H, CH3 or OCH3.


Also preferred are the uracilpyridines of formula (I) wherein


R7 is H, halogen or C1-C3-alkyl;

    • particularly preferred is H, F or CH3;
    • especially preferred is H.


Also preferred are the uracilpyridines of formula (I) wherein


R8 is OR9, SR9, NR10-R11, NR9S(O)2R10 or NR9S(O)2NR10R11

    • particularly preferred is OR9, NRio-iiii, NR9S(O)2R10 or NR9S(O)2NR1° R11;
    • especially preferred OR9, NR9S(O)2R10 or NR9S(O)2NR1° R11;
    • especially preferred is OR9 or NR9S(O)2R10 .


Also preferred are the uracilpyridines of formula (I) wherein


R9 is hydrogen, C1-C6-alkyl, C3-C6-alkenyl, C3-C6-alkynyl, C1-C6-haloalkyl, C3-C6-haloalkenyl, C3-C6-haloalkynyl, C1-C6-cyanoalkyl, C1-C6-alkoxy-C1-C6-alkyl, C1-C6-alkoxy-C1-C6-alkoxy-C1-C6-alkyl, di(C1-C6-alkoxa1-C6-alkyl, C1-C6-haloalkoxy-C1-C6-alkyl, C3-C6-alkenyloxy-C1-C6-alkyl, C3-C6-haloalkenyloxy-C1-C6-alkyl, C3-C6-alkenyloxy-C1-C6-alkoxy-C1-C6-alkyl, C1-C6-alkylthio-C1-C6-alkyl, C1-C6-alkylsulfinyl-C1-C6-alkyl, C1-C6-alkylsulfonyl-C1-C6-alkyl, C1-C6-alkylcarbonyl-C1-C6-alkyl, C1-C6-alkoxycarbonyl-C1-C6-alkyl, C1-C6-haloalkoxycarbonyl-C1-C6-alkyl, C3-C6-alkenyloxycarbonyl-C1-C6-alkyl, C3-C6-alkynyloxycarbonyl-C1-C6-alkyl, amino, (C1-C6-alkyl)amino, di(C1-C6-alkyl)amino, (C1-C6-alkylcarbonyl)amino, amino-C1-C6-alkyl, (C1-C6-alkyl)amino-C1-C6-alkyl, di(C1-C6-alkyl)amino-C1-C6-alkyl, aminocarbonyl-C1-C6-alkyl, (C1-C6-alkyl)aminocarbonyl-C1-C6-alkyl, di(C1-C6-alkyl)aminocarbonyl-C1-C6-alkyl,

    • —N═CR12R13,
      • wherein R12 and R13 independently of one another are H, C1-C4-alkyl or phenyl; C3-C6-cycloalkyl, C3-C6-cycloalkyl-C1-C6-alkyl, C3-C6-heterocyclyl, phenyl, phenyl-C1-C4-alkyl or a 5- or 6 membered heteroaryl,
      • wherein each cycloalkyl, heterocyclyl, phenyl or heteroaryl ring can be substituted by one to four substituents selected from R14 or a 3- to 7-membered carbocyclus,
        • which carbocyclus optionally has in addition to carbon atoms one or two ring members selected from the group consisting of —N(R12) , -N═N—, C(═O)—, —O— and —S—, and
        • which carbocyclus is optionally substituted with one to four substituents selected from R″,
          • wherein R14 is halogen, NO2, CN, C1-C4 alkyl, C1-C4-haloalkyl, C1-C4-alkoxy or C1-C4-alkoxycarbonyl;
    • preferably is hydrogen, C1-C6-alkyl, C3-C6-alkenyl, C3-C6-alkynyl, C1-C6-haloalkyl, C1-C6-alkoxy-C1-C6-alkyl, di(C1-C6-alkoxy)C1-C6-alkyl, C1-C6-alkylcarbonyl-C1-C6-alkyl, C1-C6-alkoxycarbonyl-C1-C6-alkyl or C3-C6-cycloalkyl-C1-C6-alkyl;
    • particularly preferred is hydrogen, C1-C6-alkyl, C3-C6-alkenyl, C3-C6-alkynyl or C1-C6-haloalkyl;
    • also particularly preferred is hydrogen, C1-C6-alkyl, C3-C6-alkenyl or C3-C6-alkynyl;
    • especially preferred is hydrogen, C1-C6-alkyl, or C3-C6-alkynyl;
    • more preferred is hydrogen, CH3, C2H5, CH2CH═CH2 or CH2C≡CH;
    • most preferred is hydrogen, CH3, C2H5 or CH2C≡CH.


Also preferred are the uracilpyridines of formula (I) wherein


R10 is H, C1-C6-alkyl or C3-C6-cycloalkyl;

    • particularly preferred is H or C1-C6-alkyl;
    • more preferred is H;
    • also more preferred is C1-C6-alkyl.


Also preferred are the uracilpyridines of formula (I) wherein


R11 is H, C1-C6-alkyl or C1-C6-alkoxycarbonyl-C1-C6-alkyl;

    • particularly preferred is H or C1-C6-alkyl;
    • more preferred is H;
    • also more preferred is C1-C6-alkyl.


Also preferred are the uracilpyridines of formula (I) wherein


R12 is phenyl or C1-C4-alkyl;

    • particularly preferred is phenyl or CH3;
    • also particularly preferred is phenyl;
    • also particularly preferred is C1-C4-alkyl.


Also preferred are the uracilpyridines of formula (I) wherein


R13 is phenyl or C1-C4-alkyl;

    • particularly preferred is phenyl or CH3;
    • also particularly preferred is phenyl;
    • also particularly preferred is C1-C4-alkyl.


Also preferred are the uracilpyridines of formula (I) wherein


R14 is halogen or C1-C4-alkyl;

    • particularly preferred is F, Cl or CH3;
    • also particularly preferred is halogen;
    • especially preferred is F or Cl;
    • also particularly preferred is C1-C6-alkyl;
    • especially preferred is CH3.


Also preferred are the uracilpyridines of formula (I) wherein


n is 1 or 2;


particularly preferred is 2;


also particularly preferred is 1.


Also preferred are the uracilpyridines of formula (I) wherein


Q is 0, S, SO, S02, NH or (C1-C3-alkyl)N;

    • preferably is O or S;
    • particularly preferred is O.


Also preferred are the uracilpyridines of formula (I) wherein


W is O,

    • also preferably is S.


Also preferred are the uracilpyridines of formula (I) wherein


X is O,

    • also preferably is S.


Also preferred are the uracilpyridines of formula (I) wherein Y is O,

    • also preferably is S.


Also preferred are the uracilpyridines of formula (I) wherein


Z is phenyl or pyridyl,

    • each of which is optionally substituted by 1 to 4 substituents selected from the group consisting of halogen, CN, C1-C6-alkyl, C1-C6-haloalkyl, C1-C6-alkoxy and C1-C6-haloalkoxy;


preferably is phenyl,

    • which is optionally substituted by 1 to 4 substituents selected from the group consisting of halogen, CN, C1-C6-alkyl, C1-C6-haloalkyl, C1-C6-alkoxy and C1-C6-haloalkoxy;


also preferably is pyridyl,

    • which is optionally substituted by 1 to 4 substituents selected from the group consisting of halogen, CN, C1 C6 alkyl, C1-C6-haloalkyl, C1-C6-alkoxy and C1-C6-haloalkoxy.


Also preferred are the uracilpyridines of formula (I) wherein


Z is phenyl or pyridyl,

    • each of which is optionally substituted by 1 to 4 substituents selected from the group consisting of halogen, CN, C1 C6 alkyl, C1-C6-haloalkyl, C1-C6-alkoxy and C1-C6-haloalkoxy;


preferably is phenyl or pyridyl,

    • each of which is optionally substituted by 1 to 4 substituents selected from the group consisting of halogen, C1-C6-alkyl, C1-C6-haloalkyl, C1-C6-alkoxy or C1-C6-haloalkoxy;


particularly preferred is phenyl or pyridyl,

    • each of which is optionally substituted by 1 to 4 substituents selected from the group consisting of halogen or C1-C6-alkyl;


especially preferred is phenyl or pyridyl,

    • each of which is optionally substituted by 1 to 4 substituents selected from the group consisting of F, Cl or CH3;


more preferred is phenyl or pyridyl,

    • each of which is unsubstituted.


Also preferred are the uracilpyridines of formula (I) wherein


Z is phenyl,

    • which is optionally substituted by 1 to 4 substituents selected from the group consisting of halogen, CN, C1 C6 alkyl, C1-C6-haloalkyl, C1-C6-alkoxy and C1-C6-haloalkoxy;


preferably is phenyl,

    • which is optionally substituted by 1 to 4 substituents selected from the group consisting of halogen, C1-C6-alkyl, C1-C6-haloalkyl, C1-C6-alkoxy or C1-C6- haloalkoxy;


particularly preferred is phenyl,

    • which is optionally substituted by 1 to 4 substituents selected from the group consisting of halogen or C1-C6-alkyl;


especially preferred is phenyl

    • which is optionally substituted by 1 to 4 substituents selected from the group consisting of F, Cl or CH3;


more preferred is unsubstituted phenyl.


Also preferred are the uracilpyridines of formula (I) wherein


Z is pyridyl,

    • which is optionally substituted by 1 to 3 substituents selected from the group consisting of halogen, CN, C1 C6 alkyl, C1-C6-haloalkyl, C1-C6-alkoxy and C1-C6-haloalkoxy;


preferably is pyridyl,

    • which is optionally substituted by 1 to 3 substituents selected from the group consisting of halogen, C1-C6-alkyl, C1-C6-haloalkyl, C1-C6-alkoxy or C1-C6-haloalkoxy;


particularly preferred is pyridyl,

    • which is optionally substituted by 1 to 3 substituents selected from the group consisting of halogen or C1-C6-alkyl;


especially preferred is pyridyl,

    • which is optionally substituted by 1 to 3 substituents selected from the group consisting of F, Cl or CH3;
    • more preferred is unsubstituted pyridyl.


Also preferred are the uracilpyridines of formula (I) wherein


Z is selected from the group consisting of Z1 to Z29




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wherein


* denotes the point of attachment of Z to X;


** denotes the point of attachment of Z to Q; and


Ra, Rb, Rc, Rd and Re independently of one another are

    • H, halogen, CN, C1-C6-alkyl, C1-C6-haloalkyl, C1-C6-alkoxy, C1-C6-haloalkoxy; preferably H, halogen, C1-C6-alkyl, C1-C6-haloalkyl, C1-C6-alkoxy or C1-C6-haloalkoxy;
    • particularly preferred H, halogen or C1-C6-alkyl;
    • especially preferred H, F, Cl, or CH3;
    • more preferred H.


Also preferred are the uracilpyridines of formula (I) wherein


Z is selected from the group consisting of Z1, Z2, Z3, Z4, Z5, Z6, z7, Z8, Z9, z10, z11, z12, z13 and Z21 as defined above;

    • particularly preferred is selected from the group consisting of Z1, Z2, Z4, Z5, Z6, Z7, Z8, Z9, Z10, Z11 and L21 as defined above;
    • more particularly preferred is selected from the group consisting of Z1, Z4, Z5, Z6, Z7 and Z21 as defined above;
    • especially preferred is selected from the group consisting of Z1, Z4, Z5, Z6 and Z7 as defined above;
    • more preferred is selected from the group consisting of Z1 and Z7 as defined above.


Also preferred are the uracilpyridines of formula (I) wherein


Z is selected from the group consisting of Z1, Z2, Z3, Z4, Z5, Z6, Z7, Z8, Z9, Z19, Z11, Z12, Z13 and Z21 as defined above; wherein

    • Ra, Rb, Rc, Rd and Re independently of one another are
      • H, halogen, CN, C1-C6-alkyl, C1-C6-haloalkyl, C1-C6-alkoxy, C1-C6-haloalkoxy;
      • preferably H, halogen, C1-C6-alkyl, C1-C6-haloalkyl, C1-C6-alkoxy or C1-C6-haloalkoxy;
      • particularly preferred H, halogen or C1-C6-alkyl;
      • especially preferred H, F, Cl, or CH3;
      • more preferred H;
    • particularly preferred is selected from the group consisting of Z1, Z2, Z4, Z5, Z6, Z7, Z8, Z9, Z19, Z11 and Z21 as defined above, wherein
    • Ra, Rb, Rc, Rd and Re independently of one another are
      • H, halogen, CN, C1-C6-alkyl, C1-C6-haloalkyl, C1-C6-alkoxy, C1-C6-haloalkoxy;
      • preferably H, halogen, C1-C6-alkyl, C1-C6-haloalkyl, C1-C6-alkoxy or C1-C6-haloalkoxy;
      • particularly preferred H, halogen or C1-C6-alkyl;
      • especially preferred H, F, Cl, or CH3;
      • more preferred H;
    • more particularly preferred is selected from the group consisting of Z1, Z4, Z5, Z6, Z7, and Z21 as defined above, wherein
    • Ra, Rb, Rc, Rd and Re independently of one another are
      • H, halogen, CN, C1-C6-alkyl, C1-C6-haloalkyl, C1-C6-alkoxy, C1-C6-haloalkoxy;
      • preferably H, halogen, C1-C6-alkyl, C1-C6-haloalkyl, C1-C6-alkoxy or C1-C6-haloalkoxy;
      • particularly preferred H, halogen or C1-C6-alkyl;
      • especially preferred H, F, Cl, or CH3;
      • more preferred H;
    • especially preferred is selected from the group consisting of Z′, Z4, Z5, Z6 and Z7 as defined above, wherein
    • Ra, Rb, Rc, Rd and Re independently of one another are
      • H, halogen, CN, C1-C6-alkyl, C1-C6-haloalkyl, C1-C6-alkoxy, C1-C6-haloalkoxy;
      • preferably H, halogen, C1-C6-alkyl, C1-C6-haloalkyl, C1-C6-alkoxy or C1-C6- haloalkoxy;
      • particularly preferred H, halogen or C1-C6-alkyl;
      • especially preferred H, F, Cl, or CH3;
      • more preferred H;
    • more preferred is selected from the group consisting of Z1 and Z7 as defined above, wherein
    • Ra, Rb, Rc, Rd and Re independently of one another are
      • H, halogen, CN, C1-C6-alkyl, C1-C6-haloalkyl, C1-C6-alkoxy, C1-C6-haloalkoxy;
      • preferably H, halogen, C1-C6-alkyl, C1-C6-haloalkyl, C1-C6-alkoxy or C1-C6 haloalkoxy;
      • particularly preferred H, halogen or C1-C6-alkyl;
      • especially preferred H, F, Cl, or CH3;
      • more preferred H.


Also preferred are the uracilpyridines of formula (I) wherein


R1 is C1-C6-alkyl,


R2 is C1-C4-haloalkyl,


R3 is H, and


Y is O.


Also preferred are the uracilpyridines of formula (I) wherein


R4 is H or F, and


R5 is F, Cl, Br or CN.


Also preferred are the uracilpyridines of formula (I) wherein


R4 is H or F, and


R5 is F, Cl or CN.


Also preferred are the uracilpyridines of formula (I) wherein


R6 is H, C1-C3-alkyl or C1-C3-alkoxy, and


R7 is H.


Also preferred are the uracilpyridines of formula (I) wherein


R8 is OR9NR9S(O)2R10 or NR9S(O)2NR10R11, wherein

    • R9 is hydrogen, C1-C6-alkyl, C3-C6-alkenyl, C3-C6-alkynyl, C1-C6-haloalkyl, C1-C6-alkoxy-C1-C6-alkyl, di(C1-C6-alkoxy)C1-C6-alkyl, C1-C6-alkylcarbonyl-C1-C6-alkyl, C1-C6-alkoxycarbonyl-C1-C6-alkyl or C3-C6-cycloalkyl-C1-C6-alkyl; and
    • R10, R11 are C1-C6-alkyl.


Also preferred are the uracilpyridines of formula (I) wherein


n is 1.


Also preferred are the uracilpyridines of formula (I) wherein


Q, W and X are O.


Also preferred are the uracilpyridines of formula (I) wherein


R1 is hydrogen, NH2 or C1-C6-alkyl;


R2 is C1-C6-alkyl or C1-C6-haloalkyl;


R3 is H;


R4 is H or halogen;


R5 is halogen or CN;


R6 is H, C1-C3-alkyl, C1-C3-haloalkyl, C1-C3-alkoxy, C1-C3-haloalkoxy or C1-C3-alkylthio;


R7 is H;


R8 is OR9, SR9, NR10R11, NR9S(O)2R10 or NR9S(O)2NR10R11; wherein

    • R9 is hydrogen, C1-C6-alkyl, C3-C6-alkenyl, C3-C6-alkynyl, C1-C6-haloalkyl, C3-C6-haloalkenyl, C3-C6-haloalkynyl, C1-C6-cyanoalkyl, C1-C6-alkoxy-C1-C6-alkyl, C1-C6-alkoxy-C1-C6-alkoxy-C1-C6-alkyl, di(C3-C6-alkoxy)C3-C6-alkyl, C1-C6-haloalkoxy-C1-C6-alkyl, C3-C6-alkenyloxy-C1-C6-alkyl, C1-C6-haloalkenyloxy-C1-C6-alkyl, C3-C6-alkenyloxy-C1-C6-alkoxy-C1-C6-alkyl, C1-C6-alkylthio-C1-C6-alkyl, C1-C6-alkylsulfonyl-C1-C6-alkyl, C1-C6-alkylcarbonyl-C1-C6-alkyl, C1-C6-alkoxycarbonyl-C1-C6-alkyl, C1-C6-haloalkoxycarbonyl-C1-C6-alkyl, C3-C6-alkenyloxycarbonyl-C1-C6-alkyl, amino, (C1-C6-alkyl)amino, di(C1-C6-alkyl)amino, (C1-C6-alkylcarbonyl)amino, amino-C1-C6-alkyl, (C1-C6-alkyl)amino-C1-C6-alkyl, di(C1-C6-alkyl)amino-C1-C6-alkyl, aminocarbonyl-C1-C6-alkyl, (C1-C6 alkyl)aminocarbonyl-C1-C6-alkyl, di(C1-C6-alkyl)aminocarbonyl-C1-C6-alkyl, —N═CR12R13,
      • wherein R12 and R13 independently of one another are H, C1-C4-alkyl or phenyl;
    • C1-C6-cycloalkyl, C3-C6-cycloalkyl-C1-C6-alkyl, C3-C6-heterocyclyl, phenyl, phenyl-C1-C4-alkyl or a 5- or 6 membered heteroaryl,
      • wherein each cycloalkyl, heterocyclyl, phenyl or heteroaryl ring can be substituted by one to four substituents selected from R″ or a 3- to 7-membered carbocyclus,
        • which carbocyclus optionally has in addition to carbon atoms one or two ring members selected from the group consisting of —N(R9-, —N═N—, —C(═O)—, —O— and —S—, and which carbocyclus is optionally substituted with one to four substituents selected from R″;
      • R10 is C1-C6-alkyl;
      • R11 is H or C1-C6-alkyl; R12 is phenyl or CH3; R13 is phenyl or CH3; R14 is halogen or C1-C6-alkyl;


n is 1 or 2;


Q is O, S, SO, SO2, NH or (C1-C3-alkyl)N;


W is O;


X is O;


Y is O;


Z Z1, Z2, Z3, Z4, Z5, Z6, Z7, Z8, Z9, Z10, Z11, Z12, 13 and Z21 as defined above, wherein

    • Ra, Rb, Rc, Rd and Re independently of one another are H, halogen, CN, C1-C6-alkyl, C1-C6-haloalkyl, C1-C6-alkoxy, C1-C6-haloalkoxy;


particularly preferred are the uracilpyridines of formula (I) wherein


R1 is NH2 or C1-C4-alkyl;


R2 is C1-C4-alkyl or C1-C4-haloalkyl;


R3 is H;


R4 is H or halogen;


R5 is halogen or CN;


R6 is H, C1-C3-alkyl, C1-C3-haloalkyl or C1-C3-alkoxy;


R7 is H;


R8 OR9, NR19R11, NR9S(O)2R10 or NR9S(O)2NR10R11; wherein

    • R9 is hydrogen, C1-C6-alkyl, C3-C6-alkenyl, C3-C6-alkynyl, C1-C6-haloalkyl, C1-C6-alkoxy-C1-C6-alkyl, di(C1-C6-alkoxy)C1-C6-alkyl, C1-C6-alkylcarbonyl-C1-C6-alkyl, C1-C6-alkoxycarbonyl-C1-C6-alkyl or C3-C6-cycloalkyl-C1-C6-alkyl;
    • R10 is C1-C6-alkyl;
    • R11 is H or C1-C6-alkyl;


n is 1;


Q is O, S, SO, SO2, NH or (C1-C3-alkyl)N;


W is O;


X is O;


Y is O;


Z is selected from the group consisting of Z1, Z2, Z4, Z5, Z6, Z7, Z8, Z9, Z10 , Z11 and Z21 as defined above, wherein Ra, Rb, Rc, Rd and Re independently of one another are H, halogen, CN, C1-C6-alkyl, C1-C6-haloalkyl, C1-C6-alkoxy, C1-C6-haloalkoxy;


especially preferred are the uracilpyridines of formula (I) wherein


R1 is NH2 or CH3;


R2 is C1-C4-haloalkyl;


R3 is H;


R4 is H, F or Cl;


R5 is F, Cl, Br or CN;


R6 is H, C1-C3-alkyl or C1-C3-alkoxy;


R7 is H;


R8 is OR9 or NR9S(O)2R10 , wherein

    • R9 is hydrogen, C1-C6-alkyl, C3-C6-alkenyl, C3-C6-alkynyl or C1-C6-haloalkyl, and
    • R10 is C1-C6-alkyl;


n is 1;


Q is O or S;


W is O;


X is O;


Y is O;


Z is selected from the group consisting of Z1, Z4, Z5, Z6, Z7 and Z21 as defined above, wherein Ra, Rb, Rc, Rd and Re independently of one another are H, halogen, CN, C1-C6-alkyl, C1-C6-haloalkyl, C1-C6-alkoxy, C1-C6-haloalkoxy;


also especially preferred are the uracilpyridines of formula (I) wherein


R1 is NH2 or CH3;


R2 is C1-C4-haloalkyl;


R3 is H;


R4 is H, F or Cl;


R5 is F, Cl or CN;


R6 is H, C1-C3-alkyl or C1-C3-alkoxy;


R7 is H;


R8 is OR9 or NR9S(O)2R10, wherein

    • R9 is hydrogen, C1-C6-alkyl, C3-C6-alkenyl, C3-C6-alkynyl or C1-C6-haloalkyl, and
    • R10 is C1-C6-alkyl;


n is 1;


Q is 0 or S;


W is O;


X is O;


Y is O;


Z is selected from the group consisting of Z1, Z4, Z5, Z6 and Z7 as defined above, wherein Ra, Rb, Rc, Rd and Re independently of one another are H, halogen, CN, C1-C6-alkyl, C1-C6-haloalkyl, C1-C6-alkoxy, C1-C6-haloalkoxy;


more preferred are the uracilpyridines of formula (I) wherein


R1 is CH3;


R2 is CF3;


R3 is H;


R4 is H, F or Cl;


R5 is F, Cl, Br or CN;


R6 is H, CH3 or OCH3;


R7 is H;


R8 is OR9 or NR9S(O)2V; wherein

    • R9 is hydrogen, C1-C6-alkyl, C3-C6-alkenyl, or C3-C6-alkynyl, and
    • R10 is C1-C6-alkyl;


n is 1;


Q is O;


W is O;


X is O;


Y is O;


Z is selected from the group consisting of Z1 and Z7 as defined above, wherein Ra, Rb, Rc, Rd and Re independently of one another are H, halogen, CN, C1-C6-alkyl, C1-C6-haloalkyl, C1-C6-alkoxy, C1-C6-haloalkoxy.


also more preferred are the uracilpyridines of formula (I) wherein


Rl is CH3;


R2 is CF3;


R3 is H;


R4 is H, F or Cl;


R5 is F, Cl or CN;


R6 is H, CH3 or OCH3;


R7 is H;


R8 is OR9 or NR9S(O)2R10 ; wherein

    • R9 is hydrogen, C1-C6-alkyl, or C3-C6-alkynyl, and
    • R10 is C1-C6-alkyl;


n is 1;


Q is O;


W is O;


X is O;


Y is O;


Z is selected from the group consisting of Z1 and Z7 as defined above, wherein Ra, Rb, Rc, Rd and Re independently of one another are H, halogen, CN, C1-C6-alkyl, C1-C6-haloalkyl, C1-C6-alkoxy, C1-C6-haloalkoxy.


Also preferred are the uracilpyridines of formula (I) wherein


Rl is CH3;


R2 is CF3;


R3 is H;


R4 is H, F or Cl;


R5 is F, Cl, Br or CN;


R6 is H, CH3 or OCH3;


R7 is H;


R8 OR9, SR9, NR10R11, NR9OR9, NR9S(O)2R10 or NR9S(O)2NR10R11, wherein

    • R9 is hydrogen, C1-C6-alkyl, C3-C6-alkenyl, C3-C6-alkynyl, C1-C6-haloalkyl, C3-C6-haloalkenyl, C3-C6-haloalkynyl, C1-C6-cyanoalkyl, C1-C6-alkoxy-C1-C6-alkyl, C1-C6-alkoxy-C1-Ccalkoxy-C1-C6-alkyl, di(C1-C6-alkoxy)C1-C6-alkyl, C1-C6-haloalkoxy-C1-C6-alkyl, C3-C6-alkenyloxy-C1-C6-alkyl, C3-C6-haloalkenyloxy-C1-C6-alkyl, C3-C6-alkenyloxy-C1-C6-alkoxy-C1-C6-alkyl, C1-C6-alkylthio-C1-C6-alkyl, C1-C6-alkylsulfinyl-C1-C6-alkyl, C1-C6-alkylsulfonyl-C1-C6-alkyl, C1-C6-alkylcarbonyl-C1-C6-alkyl, C1-C6-alkoxycarbonyl-C1-C6-alkyl, C1-C6-haloalkoxycarbonyl-C1-C6-alkyl, C3-C6-alkenyloxycarbonyl-C1-C6-alkyl, C3-C6-alkynyloxycarbonyl-C1-C6-alkyl, amino, (C1-C6-alkyl)amino, di(C1-C6-alkyl)amino, (C1-C6-alkylcarbonyl)amino, amino-C1-C6-alkyl, (C1-C6-alkyl)amino-C1-C6-alkyl, di(C1-C6-alkyl)amino-C1-C6-alkyl, aminocarbonyl-C1-C6-alkyl, (C1-C6-alkyl)aminocarbonyl-C1-C6-alkyl, di(C1-C6-alkyl)aminocarbonyl-C1-C6-alkyl,
      • —N═CR12R13, wherein R12 and R13 independently of one another are H, C1-C4-alkyl or phenyl;
      • C3-C6-cycloalkyl, C3-C6-cycloalkyl-C1-C6-alkyl, C3-C6-heterocyclyl, C3-C6-heterocyclyl-C3-C3-alkyl, phenyl, phenyl-C1-C6-alkyl or a 5- or 6 membered heteroaryl,
        • wherein each cycloalkyl, heterocyclyl, phenyl or heteroaryl ring can be substituted by one to four substituents selected from R″ or a 3- to 7-membered carbocyclus,
          • which carbocyclus optionally has in addition to carbon atoms one or two ring members selected from the group consisting of
          • —N(R12) , —N═N—, C(═O)—, —O— and —S—, and
          • which carbocyclus is optionally substituted with one to four substituents selected from R14;
          •  wherein R14 is halogen, NO2, CN, C1-C4-alkyl, C1-C4-haloalkyl, C1-C4-alkoxy or C1-C4-alkoxycarbonyl;
    • R10, R11 independently of one another are R9, or together form a 3- to 7-membered carbocyclus,
      • which carbocyclus optionally has in addition to carbon atoms one or two ring members selected from the group consisting of —N(R12)—, —N═N—, —C(═O)—, —O— and —S—, and
      • which carbocyclus is optionally substituted with one to four substituents selected from R14;


n is 1;


Q is O;


W is O;


X is O;


Y is O;


Z is selected from the group consisting of Z1 and Z7 as defined above, wherein Ra, Rb, Rc, Rd and Re independently of one another are H, halogen, CN, C1-C6-alkyl, C1-C6-haloalkyl, C1-C6-alkoxy, C1-C6-haloalkoxy.


Also preferred are the uracilpyridines of formula (I) wherein


Rl is CH3;


R2 is CF3;


R3 is H;


R4 is H, F or Cl;


R5 is F, Cl or CN;


R6 is H, CH3 or OCH,;


R7 is H;


R8 OR9, SR9, NR10R11, NR9OR9, NR9S(O)2R10 or NR9S(O)2NR10R11, wherein

    • R9 is hydrogen, C1-C6-alkyl, C3-C6-alkenyl, C3-C6-alkynyl, C1-C6-haloalkyl, C3-C6-haloalkenyl, C3-C6-haloalkynyl, C1-C6-cyanoalkyl, C1-C6-alkoxy-C1-C6-alkyl, C1-C6-alkoxy-C1-C6-alkoxy-C1-C6-alkyl, di(C1-C6-alkoxy)C1-C6-alkyl, C1-C6haloalkoxy-C1-C6-alkyl, C3-C6-alkenyloxy-C1-C6-alkyl, C1-C6-haloalkenyloxy-C1-C6-alkyl, C3-Ccalkenyloxy-C3-Ccalkoxy-C3-Ccalkyl, C1-C6-alkylthio-C1-C6-alkyl, C1-C6-alkylsulfonyl-C1-C6-alkyl, C1-C6-alkylcarbonyl-C3-C3-alkyl, C1-C6-alkoxycarbonyl-C1-C6-alkyl, C1-C6-haloalkoxycarbonyl-C1-C6-alkyl, C3-C6-alkenyloxycarbonyl-C1-C6-alkyl, C1-C6-alkynyloxycarbonyl-C1-C6-alkyl, amino, (C1-C6-alkyl)amino, di(C1-C6-alkyl)amino, (C1-C6-alkylcarbonyl)amino, amino-C1-C6-alkyl, (C1-C6-alkyl)amino-C1-C6-alkyl, di(C1-C6-alkyl)amino-C1-C6-alkyl, aminocarbonyl-C1-C6-alkyl, (C1-C6-alkyl)aminocarbonyl-C1-C6-alkyl, di(C1-C6alkyl)aminocarbonyl-C1-C6-alkyl,
      • —N═CR12R13, wherein R12 and R13 independently of one another are H, C1-C4-alkyl or phenyl;
      • C1-C6-cycloalkyl, C3 C6 cycloalkyl C1 C6 alkyl, C3-C6-heterocyclyl, C3-C6-heterocyclyl-C1-C6-alkyl, phenyl, phenyl-C1-C4-alkyl or a 5- or 6 membered heteroaryl,
        • wherein each cycloalkyl, heterocyclyl, phenyl or heteroaryl ring can be substituted by one to four substituents selected from R″ or a 3- to 7-membered carbocyclus,
          • which carbocyclus optionally has in addition to carbon atoms one or two ring members selected from the group consisting of
          • —(R12)—, —N═N—, —C(═O)—, —O— and —S—, and
          • which carbocyclus is optionally substituted with one to four substituents selected from R″;
          •  wherein R14 is halogen, NO2, CN, C1-C4-alkyl, C1-C4-haloalkyl, C1-C4-alkoxy or C1-C4-alkoxycarbonyl;
    • R10, R11 independently of one another are R9, or together form a 3- to 7-membered carbocyclus,
      • which carbocyclus optionally has in addition to carbon atoms one or two ring members selected from the group consisting of —N(R12)—, —N═N—, —C(═O)—, —O— and —S—, and
      • which carbocyclus is optionally substituted with one to four substituents selected from R″;


n is 1;


Q is O;


W is O;


X is O;


Y is O;


Z is selected from the group consisting of Z1 and Z7 as defined above, wherein Ra, Rb, Rc, Rd and Re independently of one another are H, halogen, CN, C1-C6-alkyl, C1-C6-haloalkyl, C1-C6-alkoxy, C1-C6-haloalkoxy.


Particular preference is given to uracilpyrimidines of formula (I.a) (corresponds to formula (I) wherein R1 is CH3, R2 is CF3, R3 is H, R7 is H, n is 1, Q, W, X and Y are O, and Z is Z−1 as defined, wherein Ra, Rb, Rc and Rd are H:




embedded image




    • wherein the variables R4, R5, R6 and R8 have the meanings, in particular the preferred meanings, as defined above.





Special preference is given to the compounds of the formulae (I.a.1) to (I.a.672), preferably (I.a.1) to (I.a.504), of Table A, where the definitions of the variables R4, R5 ,R6 and Ware of particular importance for the compounds according to the invention not only in combination with one another but in each case also on their own:













TABLE A





No.
R4
R5
R6
R8







I.a.1
H
F
H
OH


I.a.2
H
F
H
OCH3


I.a.3
H
F
H
OC2H5


I.a.4
H
F
H
OCH(CH3)2


I.a.5
H
F
H
OCH2CH2CH3


I.a.6
H
F
H
OCH2CH(CH3)2


I.a.7
H
F
H
OCH2CH=CH2


I.a.8
H
F
H
OCH2C≡CH


I.a.9
H
F
H
OCH2CF3


I.a.10
H
F
H
OCH2CHF2


I.a.11
H
F
H
OC6H5


I.a.12
H
F
H
OCH2(C6H5)


I.a.13
H
F
H
OCH2OCH3


I.a.14
H
F
H
OCH2OCH2CH3


I.a.15
H
F
H
OCH2CH2OCH3


I.a.16
H
F
H
OCH2CH2OCH2CH3


I.a.17
H
F
H
OCH2(CO)OCH3


I.a.18
H
F
H
OCH2(CO)OCH2CH3


I.a.19
H
F
H
OCH(CH3)(CO)OCH3


I.a.20
H
F
H
OCH(CH3)(CO)OCH2CH3


I.a.21
H
F
H
OCH2-cyclopropyl


I.a.22
H
F
H
OCH2-cyclobutyl


I.a.23
H
F
H
SCH3


I.a.24
H
F
H
SC2H5


I.a.25
H
F
H
NHSO2CH3


I.a.26
H
F
H
NHSO2CH(CH3)2


I.a.27
H
F
H
NHSO2N(CH3)2


I.a.28
H
F
H
NHSO2N(CH3)[CH(CH3)2]


I.a.29
H
F
CH3
OH


I.a.30
H
F
CH3
OCH2


I.a.31
H
F
CH3
OC2H5


I.a.32
H
F
CH3
OCH(CH3)2


I.a.33
H
F
CH3
OCH2CH2CH3


I.a.34
H
F
CH3
OCH2CH(CH3)2


I.a.35
H
F
CH3
OCH2CH=CH2


I.a.36
H
F
CH3
OCH2C≡CH


I.a.37
H
F
CH3
OCH2CF3


I.a.38
H
F
CH3
OCH2CHF2


I.a.39
H
F
CH3
OC6H5


I.a.40
H
F
CH3
OCH2(C6H5)


I.a.41
H
F
CH3
OCH2OCH3


I.a.42
H
F
CH3
OCH2OCH2CH3


I.a.43
H
F
CH3
OCH2CH2OCH3


I.a.44
H
F
CH3
OCH2CH2OCH2CH3


I.a.45
H
F
CH3
OCH2(CO)OCH3


I.a.46
H
F
CH3
OCH2(CO)OCH2CH3


I.a.47
H
F
CH3
OCH(CH3)(CO)OCH3


I.a.48
H
F
CH3
OCH(CH3)(CO)OCH2CH3


I.a.49
H
F
CH3
OCH2-cyclopropyl


I.a.50
H
F
CH3
OCH2-cyclobutyl


I.a.51
H
F
CH3
SCH3


I.a.52
H
F
CH3
SC2H5


I.a.53
H
F
CH3
NHSO2CH3


I.a.54
H
F
CH3
NHSO2CH(CH3)2


I.a.55
H
F
CH3
NHSO2N(CH3)2


I.a.56
H
F
CH3
NHSO2N(CH3)[CH(CH3)2]


I.a.57
H
F
OCH3
OH


I.a.58
H
F
OCH3
OCH3


I.a.59
H
F
OCH3
OC2H5


I.a.60
H
F
OCH3
OCH(CH3)2


I.a.61
H
F
OCH3
OCH2CH2CH3


I.a.62
H
F
OCH3
OCH2CH(CH3)2


I.a.63
H
F
OCH3
OCH2CH=CH2


I.a.64
H
F
OCH3
OCH2C≡CH


I.a.65
H
F
OCH3
OCH2CF3


I.a.66
H
F
OCH3
OCH2CHF2


I.a.67
H
F
OCH3
OC6H5


I.a.68
H
F
OCH3
OCH2(C6H5)


I.a.69
H
F
OCH3
OCH2OCH3


I.a.70
H
F
OCH3
OCH2OCH2CH3


I.a.71
H
F
OCH3
OCH2CH2OCH3


I.a.72
H
F
OCH3
OCH2CH2OCH2CH3


I.a.73
H
F
OCH3
OCH2(CO)OCH3


I.a.74
H
F
OCH3
OCH2(CO)OCH2CH3


I.a.75
H
F
OCH3
OCH(CH3)(CO)OCH3


I.a.76
H
F
OCH3
OCH(CH3)(CO)OCH2CH3


I.a.77
H
F
OCH3
OCH2-cyclopropyl


I.a.78
H
F
OCH3
OCH2-cyclobutyl


I.a.79
H
F
OCH3
SCH3


I.a.80
H
F
OCH3
SC2H5


I.a.81
H
F
OCH3
NHSO2CH3


I.a.82
H
F
OCH3
NHSO2CH(CH3)2


I.a.83
H
F
OCH3
NHSO2N(CH3)2


I.a.84
H
F
OCH3
NHSO2N(CH3)[CH(CH3)2]


I.a.85
H
Cl
H
OH


I.a.86
H
Cl
H
OCH3


I.a.87
H
Cl
H
OC2H5


I.a.88
H
Cl
H
OCH(CH3)2


I.a.89
H
Cl
H
OCH2CH2CH3


I.a.90
H
Cl
H
OCH2CH(CH3)2


I.a.91
H
Cl
H
OCH2CH=CH2


I.a.92
H
Cl
H
OCH2C≡CH


I.a.93
H
Cl
H
OCH2CF3


I.a.94
H
Cl
H
OCH2CHF2


I.a.95
H
Cl
H
OC6H5


I.a.96
H
Cl
H
OCH2(C6H5)


I.a.97
H
Cl
H
OCH2OCH3


I.a.98
H
Cl
H
OCH2OCH2CH3


I.a.99
H
Cl
H
OCH2CH2OCH3


I.a.100
H
Cl
H
OCH2CH2OCH2CH3


I.a.101
H
Cl
H
OCH2(CO)OCH3


I.a.102
H
Cl
H
OCH2(CO)OCH2CH3


I.a.103
H
Cl
H
OCH(CH3)(CO)OCH3


I.a.104
H
Cl
H
OCH(CH3)(CO)OCH2CH3


I.a.105
H
Cl
H
OCH2-cyclopropyl


I.a.106
H
Cl
H
OCH2-cyclobutyl


I.a.107
H
Cl
H
SCH3


I.a.108
H
Cl
H
SC2H5


I.a.109
H
Cl
H
NHSO2CH3


I.a.110
H
Cl
H
NHSO2CH(CH3)2


I.a.Il
H
Cl
H
NHSO2N(CH3)2


I.a.112
H
Cl
H
NHSO2N(CH3)[CH(CH3)2]


I.a.113
H
Cl
CH3
OH


I.a.114
H
Cl
CH3
OCH3


I.a.115
H
Cl
CH3
OC2H5


I.a.116
H
Cl
CH3
OCH(CH3)2


I.a.117
H
Cl
CH3
OCH2CH2CH3


I.a.118
H
Cl
CH3
OCH2CH(CH3)2


I.a.119
H
Cl
CH3
OCH2CH=CH2


I.a.120
H
Cl
CH3
OCH2C≡CH


I.a.121
H
Cl
CH3
OCH2CF3


I.a.122
H
Cl
CH3
OCH2CHF2


I.a.123
H
Cl
CH3
OC6H5


I.a.124
H
Cl
CH3
OCH2(C6H5)


I.a.125
H
Cl
CH3
OCH2OCH3


I.a.126
H
Cl
CH3
OCH2OCH2CH3


I.a.127
H
Cl
CH3
OCH2CH2OCH3


I.a.128
H
Cl
CH3
OCH2CH2OCH2CH3


I.a.129
H
Cl
CH3
OCH2(CO)OCH3


I.a.130
H
Cl
CH3
OCH2(CO)OCH2CH3


I.a.131
H
Cl
CH3
OCH(CH3)(CO)OCH3


I.a.132
H
Cl
CH3
OCH(CH3)(CO)OCH2CH3


I.a.133
H
Cl
CH3
OCH2-cyclopropyl


I.a.134
H
Cl
CH3
OCH2-cyclobutyl


I.a.135
H
Cl
CH3
SCH,


I.a.136
H
Cl
CH3
SC2H5


I.a.137
H
Cl
CH3
NHSO2CH3


I.a.138
H
Cl
CH3
NHSO2CH(CH3)2


I.a.139
H
Cl
CH3
NHSO2N(CH3)2


I.a.140
H
Cl
CH3
NHSO2N(CH3)[CH(CH3)2]


I.a.141
H
Cl
OCH3
OH


I.a.142
H
Cl
OCH3
OCH3


I.a.143
H
Cl
OCH3
OC2H5


I.a.144
H
Cl
OCH3
OCH(CH3)2


I.a.145
H
Cl
OCH3
OCH2CH2CH3


I.a.146
H
Cl
OCH3
OCH2CH(CH3)2


I.a.147
H
Cl
OCH3
OCH2CH=CH2


I.a.148
H
Cl
OCH3
OCH2C≡CH


I.a.149
H
Cl
OCH3
OCH2CF3


I.a.150
H
Cl
OCH3
OCH2CHF2


I.a.151
H
Cl
OCH3
OC6H5


I.a.152
H
Cl
OCH3
OCH2(C6H5)


I.a.153
H
Cl
OCH3
OCH2OCH3


I.a.154
H
Cl
OCH3
OCH2OCH2CH3


I.a.155
H
Cl
OCH3
OCH2CH2OCH3


I.a.156
H
Cl
OCH3
OCH2CH2OCH2CH3


I.a.157
H
Cl
OCH3
OCH2(CO)OCH3


I.a.158
H
Cl
OCH3
OCH2(CO)OCH2CH3


I.a.159
H
Cl
OCH3
OCH(CH3)(CO)OCH3


I.a.160
H
Cl
OCH3
OCH(CH3)(CO)OCH2CH3


I.a.161
H
Cl
OCH3
OCH2-cyclopropyl


I.a.162
H
Cl
OCH3
OCH2-cyclobutyl


I.a.163
H
Cl
OCH3
SCH3


I.a.164
H
Cl
OCH3
SC2H5


I.a.165
H
Cl
OCH3
NHSO2CH3


I.a.166
H
Cl
OCH3
NHSO2CH(CH3)2


I.a.167
H
Cl
OCH3
NHSO2N(CH3)2


I.a.168
H
Cl
OCH3
NHSO2N(CH3)[CH(CH3)2]


I.a.169
H
CN
H
OH


I.a.170
H
CN
H
OCH3


I.a.171
H
CN
H
OC2H5


I.a.172
H
CN
H
OCH(CH3)2


I.a.173
H
CN
H
OCH2CH2CH3


I.a.174
H
CN
H
OCH2CH(CH3)2


I.a.175
H
CN
H
OCH2CH=CH2


I.a.176
H
CN
H
OCH2C≡CH


I.a.177
H
CN
H
OCH2CF3


I.a.178
H
CN
H
OCH2CHF2


I.a.179
H
CN
H
OC6H5


I.a.180
H
CN
H
OCH2(C6H5)


I.a.181
H
CN
H
OCH2OCH3


I.a.182
H
CN
H
OCH2OCH2CH3


I.a.183
H
CN
H
OCH2CH2OCH3


I.a.184
H
CN
H
OCH2CH2OCH2CH3


I.a.185
H
CN
H
OCH2(CO)OCH3


I.a.186
H
CN
H
OCH2(CO)OCH2CH3


I.a.187
H
CN
H
OCH(CH3)(CO)OCH3


I.a.188
H
CN
H
OCH(CH3)(CO)OCH2CH3


I.a.189
H
CN
H
OCH2-cyclopropyl


I.a.190
H
CN
H
OCH2-cyclobutyl


I.a.191
H
CN
H
SCH3


I.a.192
H
CN
H
SC2H5


I.a.193
H
CN
H
NHSO2CH3


I.a.194
H
CN
H
NHSO2CH(CH3)2


I.a.195
H
CN
H
NHSO2N(CH3)2


I.a.196
H
CN
H
NHSO2N(CH3)[CH(CH3)2]


I.a.197
H
CN
CH3
OH


I.a.198
H
CN
CH3
OCH3


I.a.199
H
CN
CH3
OC2H5


I.a.200
H
CN
CH3
OCH(CH3)2


I.a.201
H
CN
CH3
OCH2CH2CH3


I.a.202
H
CN
CH3
OCH2CH(CH3)2


I.a.203
H
CN
CH3
OCH2CH=CH2


I.a.204
H
CN
CH3
OCH2C≡CH


I.a.205
H
CN
CH3
OCH2CF3


I.a.206
H
CN
CH3
OCH2CHF2


I.a.207
H
CN
CH3
OC6H5


I.a.208
H
CN
CH3
OCH2(C6H5)


I.a.209
H
CN
CH3
OCH2OCH3


I.a.210
H
CN
CH3
OCH2OCH2CH3


I.a.211
H
CN
CH3
OCH2CH2OCH3


I.a.212
H
CN
CH3
OCH2CH2OCH2CH3


I.a.213
H
CN
CH3
OCH2(CO)OCH3


I.a.214
H
CN
CH3
OCH2(CO)OCH2CH3


I.a.215
H
CN
CH3
OCH(CH3)(CO)OCH3


I.a.216
H
CN
CH3
OCH(CH3)(CO)OCH2CH3


I.a.217
H
CN
CH3
OCH2-cyclopropyl


I.a.218
H
CN
CH3
OCH2-cyclobutyl


I.a.219
H
CN
CH3
SCH3


I.a.220
H
CN
CH3
SC2H5


I.a.221
H
CN
CH3
NHSO2CH3


I.a.222
H
CN
CH3
NHSO2CH(CH3)2


I.a.223
H
CN
CH3
NHSO2N(CH3)2


I.a.224
H
CN
CH3
NHSO2N(CH3)[CH(CH3)2]


I.a.225
H
CN
OCH3
OH


I.a.226
H
CN
OCH3
OCH3


I.a.227
H
CN
OCH3
OC2H5


I.a.228
H
CN
OCH3
OCH(CH3)2


I.a.229
H
CN
OCH3
OCH2CH2CH3


I.a.230
H
CN
OCH3
OCH2CH(CH3)2


I.a.231
H
CN
OCH3
OCH2CH=CH2


I.a.232
H
CN
OCH3
OCH2C≡CH


I.a.233
H
CN
OCH3
OCH2CF3


I.a.234
H
CN
OCH3
OCH2CHF2


I.a.235
H
CN
OCH3
OC6H5


I.a.236
H
CN
OCH3
OCH2(C6H5)


I.a.237
H
CN
OCH3
OCH2OCH3


I.a.238
H
CN
OCH3
OCH2OCH2CH3


I.a.239
H
CN
OCH3
OCH2CH2OCH3


I.a.240
H
CN
OCH3
OCH2CH2OCH2CH3


I.a.241
H
CN
OCH3
OCH2(CO)OCH3


I.a.242
H
CN
OCH3
OCH2(CO)OCH2CH3


I.a.243
H
CN
OCH3
OCH(CH3)(CO)OCH3


I.a.244
H
CN
OCH3
OCH(CH3)(CO)OCH2CH3


I.a.245
H
CN
OCH3
OCH2-cyclopropyl


I.a.246
H
CN
OCH3
OCH2-cyclobutyl


I.a.247
H
CN
OCH3
SCH3


I.a.248
H
CN
OCH3
SC2H5


I.a.249
H
CN
OCH3
NHSO2CH3


I.a.250
H
CN
OCH3
NHSO2CH(CH3)2


I.a.251
H
CN
OCH3
NHSO2N(CH3)2


I.a.252
H
CN
OCH3
NHSO2N(CH3)[CH(CH3)2]


I.a.253
F
F
H
OH


I.a.254
F
F
H
OCH3


I.a.255
F
F
H
OC2H5


I.a.256
F
F
H
OCH(CH3)2


I.a.257
F
F
H
OCH2CH2CH3


I.a.258
F
F
H
OCH2CH(CH3)2


I.a.259
F
F
H
OCH2CH=CH2


I.a.260
F
F
H
OCH2C≡CH


I.a.261
F
F
H
OCH2CF3


I.a.262
F
F
H
OCH2CHF2


I.a.263
F
F
H
OC6H5


I.a.264
F
F
H
OCH2(C6H5)


I.a.265
F
F
H
OCH2OCH3


I.a.266
F
F
H
OCH2OCH2CH3


I.a.267
F
F
H
OCH2CH2OCH3


I.a.268
F
F
H
OCH2CH2OCH2CH3


I.a.269
F
F
H
OCH2(CO)OCH3


I.a.270
F
F
H
OCH2(CO)OCH2CH3


I.a.271
F
F
H
OCH(CH3)(CO)OCH3


I.a.272
F
F
H
OCH(CH3)(CO)OCH2CH3


I.a.273
F
F
H
OCH2-cyclopropyl


I.a.274
F
F
H
OCH2-cyclobutyl


I.a.275
F
F
H
SCH3


I.a.276
F
F
H
SC2H5


I.a.277
F
F
H
NHSO2CH3


I.a.278
F
F
H
NHSO2CH(CH3)2


I.a.279
F
F
H
NHSO2N(CH3)2


I.a.280
F
F
H
NHSO2N(CH3)[CH(CH3)2]


I.a.281
F
F
CH3
OH


I.a.282
F
F
CH3
OCH3


I.a.283
F
F
CH3
OC2H5


I.a.284
F
F
CH3
OCH(CH3)2


I.a.285
F
F
CH3
OCH2CH2CH3


I.a.286
F
F
CH3
OCH2CH(CH3)2


I.a.287
F
F
CH3
OCH2CH=CH2


I.a.288
F
F
CH3
OCH2C≡CH


I.a.289
F
F
CH3
OCH2CF3


I.a.290
F
F
CH3
OCH2CHF2


I.a.291
F
F
CH3
OC6H5


I.a.292
F
F
CH3
OCH2(C6H5)


I.a.293
F
F
CH3
OCH2OCH3


I.a.294
F
F
CH3
OCH2OCH2CH3


I.a.295
F
F
CH3
OCH2CH2OCH3


I.a.296
F
F
CH3
OCH2CH2OCH2CH3


I.a.297
F
F
CH3
OCH2(CO)OCH3


I.a.298
F
F
CH3
OCH2(CO)OCH2CH3


I.a.299
F
F
CH3
OCH(CH3)(CO)OCH3


I.a.300
F
F
CH3
OCH(CH3)(CO)OCH2CH3


I.a.301
F
F
CH3
OCH2-cyclopropyl


I.a.302
F
F
CH3
OCH2-cyclobutyl


I.a.303
F
F
CH3
SCH3


I.a.304
F
F
CH3
SC2H5


I.a.305
F
F
CH3
NHSO2CH3


I.a.306
F
F
CH3
NHSO2CH(CH3)2


I.a.307
F
F
CH3
NHSO2N(CH3)2


I.a.308
F
F
CH3
NHSO2N(CH3)[CH(CH3)2]


I.a.309
F
F
OCH3
OH


I.a.310
F
F
OCH3
OCH3


I.a.311
F
F
OCH3
OC2H5


I.a.312
F
F
OCH3
OCH(CH3)2


I.a.313
F
F
OCH3
OCH2CH2CH3


I.a.314
F
F
OCH3
OCH2CH(CH3)2


I.a.315
F
F
OCH3
OCH2CH=CH2


I.a.316
F
F
OCH3
OCH2C≡CH


I.a.317
F
F
OCH3
OCH2CF3


I.a.318
F
F
OCH3
OCH2CHF2


I.a.319
F
F
OCH3
OC6H5


I.a.320
F
F
OCH3
OCH2(C6H5)


I.a.321
F
F
OCH3
OCH2OCH3


I.a.322
F
F
OCH3
OCH2OCH2CH3


I.a.323
F
F
OCH3
OCH2CH2OCH3


I.a.324
F
F
OCH3
OCH2CH2OCH2CH3


I.a.325
F
F
OCH3
OCH2(CO)OCH3


I.a.326
F
F
OCH3
OCH2(CO)OCH2CH3


I.a.327
F
F
OCH3
OCH(CH3)(CO)OCH3


I.a.328
F
F
OCH3
OCH(CH3)(CO)OCH2CH3


I.a.329
F
F
OCH3
OCH2-cyclopropyl


I.a.330
F
F
OCH3
OCH2-cyclobutyl


I.a.331
F
F
OCH3
SCH3


I.a.332
F
F
OCH3
SC2H5


I.a.333
F
F
OCH3
NHSO2CH3


I.a.334
F
F
OCH3
NHSO2CH(CH3)2


I.a.335
F
F
OCH3
NHSO2N(CH3)2


I.a.336
F
F
OCH3
NHSO2N(CH3)[CH(CH3)2]


I.a.337
F
CI
H
OH


I.a.338
F
Cl
H
OCH3


I.a.339
F
Cl
H
OC2H5


I.a.340
F
Cl
H
OCH(CH3)2


I.a.341
F
Cl
H
OCH2CH2CH3


I.a.342
F
Cl
H
OCH2CH(CH3)2


I.a.343
F
Cl
H
OCH2CH=CH2


I.a.344
F
Cl
H
OCH2C≡CH


I.a.345
F
Cl
H
OCH2CF3


I.a.346
F
Cl
H
OCH2CHF2


I.a.347
F
Cl
H
OC6H5


I.a.348
F
Cl
H
OCH2(C6H5)


I.a.349
F
Cl
H
OCH2OCH3


I.a.350
F
Cl
H
OCH2OCH2CH3


I.a.351
F
Cl
H
OCH2CH2OCH3


I.a.352
F
Cl
H
OCH2CH2OCH2CH3


I.a.353
F
Cl
H
OCH2(CO)OCH3


I.a.354
F
Cl
H
OCH2(CO)OCH2CH3


I.a.355
F
Cl
H
OCH(CH3)(CO)OCH3


I.a.356
F
Cl
H
OCH(CH3)(CO)OCH2CH3


I.a.357
F
Cl
H
OCH2-cyclopropyl


I.a.358
F
Cl
H
OCH2-cyclobutyl


I.a.359
F
Cl
H
SCH3


I.a.360
F
CI
H
SC2H5


I.a.361
F
Cl
H
NHSO2CH3


I.a.362
F
Cl
H
NHSO2CH(CH3)2


I.a.363
F
Cl
H
NHSO2N(CH3)2


I.a.364
F
Cl
H
NHSO2N(CH3)[CH(CH3)2]


I.a.365
F
Cl
CH3
OH


I.a.366
F
Cl
CH3
OCH3


I.a.367
F
Cl
CH3
OC2H5


I.a.368
F
Cl
CH3
OCH(CH3)2


I.a.369
F
Cl
CH3
OCH2CH2CH3


I.a.370
F
Cl
CH3
OCH2CH(CH3)2


I.a.371
F
Cl
CH3
OCH2CH=CH2


I.a.372
F
Cl
CH3
OCH2C≡CH


I.a.373
F
Cl
CH3
OCH2CF3


I.a.374
F
Cl
CH3
OCH2CHF2


I.a.375
F
Cl
CH3
OC6H5


I.a.376
F
Cl
CH3
OCH2(C6H5)


I.a.377
F
Cl
CH3
OCH2OCH3


I.a.378
F
Cl
CH3
OCH2OCH2CH3


I.a.379
F
Cl
CH3
OCH2CH2OCH3


I.a.380
F
Cl
CH3
OCH2CH2OCH2CH3


I.a.381
F
Cl
CH3
OCH2(CO)OCH3


I.a.382
F
Cl
CH3
OCH2(CO)OCH2CH3


I.a.383
F
Cl
CH3
OCH(CH3)(CO)OCH3


I.a.384
F
Cl
CH3
OCH(CH3)(CO)OCH2CH3


I.a.385
F
Cl
CH3
OCH2-cyclopropyl


I.a.386
F
Cl
CH3
OCH2-cyclobutyl


I.a.387
F
Cl
CH3
SCH3


I.a.388
F
Cl
CH3
SC2H5


I.a.389
F
Cl
CH3
NHSO2CH3


I.a.390
F
Cl
CH3
NHSO2CH(CH3)2


I.a.391
F
Cl
CH3
NHSO2N(CH3)2


I.a.392
F
Cl
CH3
NHSO2N(CH3)[CH(CH3)2]


I.a.393
F
Cl
OCH3
OH


I.a.394
F
Cl
OCH3
OCH3


I.a.395
F
Cl
OCH3
OC2H5


I.a.396
F
Cl
OCH3
OCH(CH3)2


I.a.397
F
Cl
OCH3
OCH2CH2CH3


I.a.398
F
Cl
OCH3
OCH2CH(CH3)2


I.a.399
F
Cl
OCH3
OCH2CH=CH2


I.a.400
F
Cl
OCH3
OCH2C≡CH


I.a.401
F
Cl
OCH3
OCH2CF3


I.a.402
F
Cl
OCH3
OCH2CHF2


I.a.403
F
Cl
OCH3
OC6H5


I.a.404
F
Cl
OCH3
OCH2(C6H5)


I.a.405
F
CI
OCH3
OCH2OCH3


I.a.406
F
Cl
OCH3
OCH2OCH2CH3


I.a.407
F
Cl
OCH3
OCH2CH2OCH3


I.a.408
F
Cl
OCH3
OCH2CH2OCH2CH3


I.a.409
F
Cl
OCH3
OCH2(CO)OCH3


I.a.410
F
Cl
OCH3
OCH2(CO)OCH2CH3


I.a.411
F
Cl
OCH3
OCH(CH3)(CO)OCH3


I.a.412
F
Cl
OCH3
OCH(CH3)(CO)OCH2CH3


I.a.413
F
Cl
OCH3
OCH2-cyclopropyl


I.a.414
F
Cl
OCH3
OCH2-cyclobutyl


I.a.415
F
Cl
OCH3
SCH3


I.a.416
F
Cl
OCH3
SC2H5


I.a.417
F
Cl
OCH3
NHSO2CH3


I.a.418
F
Cl
OCH3
NHSO2CH(CH3)2


I.a.419
F
Cl
OCH3
NHSO2N(CH3)2


I.a.420
F
Cl
OCH3
NHSO2N(CH3)[CH(CH3)2]


I.a.421
F
CN
H
OH


I.a.422
F
CN
H
OCH2


I.a.423
F
CN
H
OC2H5


I.a.424
F
CN
H
OCH(CH3)2


I.a.425
F
CN
H
OCH2CH2CH3


I.a.426
F
CN
H
OCH2CH(CH3)2


I.a.427
F
CN
H
OCH2CH=CH2


I.a.428
F
CN
H
OCH2C≡CH


I.a.429
F
CN
H
OCH2CF3


I.a.430
F
CN
H
OCH2CHF2


I.a.431
F
CN
H
OC6H5


I.a.432
F
CN
H
OCH2(C6H5)


I.a.433
F
CN
H
OCH2OCH3


I.a.434
F
CN
H
OCH2OCH2CH3


I.a.435
F
CN
H
OCH2CH2OCH3


I.a.436
F
CN
H
OCH2CH2OCH2CH3


I.a.437
F
CN
H
OCH2(CO)OCH3


I.a.438
F
CN
H
OCH2(CO)OCH2CH3


I.a.439
F
CN
H
OCH(CH3)(CO)OCH3


I.a.440
F
CN
H
OCH(CH3)(CO)OCH2CH3


I.a.441
F
CN
H
OCH2-cyclopropyl


I.a.442
F
CN
H
OCH2-cyclobutyl


I.a.443
F
CN
H
SCH3


I.a.444
F
CN
H
SC2H5


I.a.445
F
CN
H
NHSO2CH3


I.a.446
F
CN
H
NHSO2CH(CH3)2


I.a.447
F
CN
H
NHSO2N(CH3)2


I.a.448
F
CN
H
NHSO2N(CH3)[CH(CH3)2]


I.a.449
F
CN
CH3
OH


I.a.450
F
CN
CH3
OCHa


I.a.451
F
CN
CH3
OC2H5


I.a.452
F
CN
CH3
OCH(CH3)2


I.a.453
F
CN
CH3
OCH2CH2CH3


I.a.454
F
CN
CH3
OCH2CH(CH3)2


I.a.455
F
CN
CH3
OCH2CH=CH2


I.a.456
F
CN
CH3
OCH2C≡CH


I.a.457
F
CN
CH3
OCH2CF3


I.a.458
F
CN
CH3
OCH2CHF2


I.a.459
F
CN
CH3
OC6H5


I.a.460
F
CN
CH3
OCH2(C6H5)


I.a.461
F
CN
CH3
OCH2OCH3


I.a.462
F
CN
CH3
OCH2OCH2CH3


I.a.463
F
CN
CH3
OCH2CH2OCH3


I.a.464
F
CN
CH3
OCH2CH2OCH2CH3


I.a.465
F
CN
CH3
OCH2(CO)OCH3


I.a.466
F
CN
CH3
OCH2(CO)OCH2CH3


I.a.467
F
CN
CH3
OCH(CH3)(CO)OCH3


I.a.468
F
CN
CH3
OCH(CH3)(CO)OCH2CH3


I.a.469
F
CN
CH3
OCH2-cyclopropyl


I.a.470
F
CN
CH3
OCH2-cyclobutyl


I.a.471
F
CN
CH3
SCH3


I.a.472
F
CN
CH3
SC2H5


I.a.473
F
CN
CH3
NHSO2CH3


I.a.474
F
CN
CH3
NHSO2CH(CH3)2


I.a.475
F
CN
CH3
NHSO2N(CH3)2


I.a.476
F
CN
CH3
NHSO2N(CH3)[CH(CH3)2]


I.a.477
F
CN
OCH3
OH


I.a.478
F
CN
OCH3
OCH3


I.a.479
F
CN
OCH3
OC2H5


I.a.480
F
CN
OCH3
OCH(CH3)2


I.a.481
F
CN
OCH3
OCH2CH2CH3


I.a.482
F
CN
OCH3
OCH2CH(CH3)2


I.a.483
F
CN
OCH3
OCH2CH=CH2


I.a.484
F
CN
OCH3
OCH2C≡CH


I.a.485
F
CN
OCH3
OCH2CF3


I.a.486
F
CN
OCH3
OCH2CHF2


I.a.487
F
CN
OCH3
OC6H5


I.a.488
F
CN
OCH3
OCH2(C6H5)


I.a.489
F
CN
OCH3
OCH2OCH3


I.a.490
F
CN
OCH3
OCH2OCH2CH3


I.a.491
F
CN
OCH3
OCH2CH2OCH3


I.a.492
F
CN
OCH3
OCH2CH2OCH2CH3


I.a.493
F
CN
OCH3
OCH2(CO)OCH3


I.a.494
F
CN
OCH3
OCH2(CO)OCH2CH3


I.a.495
F
CN
OCH3
OCH(CH3)(CO)OCH3


I.a.496
F
CN
OCH3
OCH(CH3)(CO)OCH2CH3


I.a.497
F
CN
OCH3
OCH2-cyclopropyl


I.a.498
F
CN
OCH3
OCH2-cyclobutyl


I.a.499
F
CN
OCH3
SCH3


I.a.500
F
CN
OCH3
SC2H5


I.a.501
F
CN
OCH3
NHSO2CH3


I.a.502
F
CN
OCH3
NHSO2CH(CH3)2


I.a.503
F
CN
OCH3
NHSO2N(CH3)2


I.a.504
F
CN
OCH3
NHSO2N(CH3)[CH(CH3)2]


I.a.505
H
Br
H
OH


I.a.506
H
Br
H
OCH3


I.a.507
H
Br
H
OC2H5


I.a.508
H
Br
H
OCH(CH3)2


I.a.509
H
Br
H
OCH2CH2CH3


I.a.510
H
Br
H
OCH2CH(CH3)2


I.a.511
H
Br
H
OCH2CH=CH2


I.a.512
H
Br
H
OCH2C≡CH


I.a.513
H
Br
H
OCH2CF3


I.a.514
H
Br
H
OCH2CHF2


I.a.515
H
Br
H
OC6H5


I.a.516
H
Br
H
OCH2(C6H5)


I.a.517
H
Br
H
OCH2OCH3


I.a.518
H
Br
H
OCH2OCH2CH3


I.a.519
H
Br
H
OCH2CH2OCH3


I.a.520
H
Br
H
OCH2CH2OCH2CH3


I.a.521
H
Br
H
OCH2(CO)OCH3


I.a.522
H
Br
H
OCH2(CO)OCH2CH3


I.a.523
H
Br
H
OCH(CH3)(CO)OCH3


I.a.524
H
Br
H
OCH(CH3)(CO)OCH2CH3


I.a.525
H
Br
H
OCH2-cyclopropyl


I.a.526
H
Br
H
OCH2-cyclobutyl


I.a.527
H
Br
H
SCH3


I.a.528
H
Br
H
SC2H5


I.a.529
H
Br
H
NHSO2CH3


I.a.530
H
Br
H
NHSO2CH(CH3)2


I.a.531
H
Br
H
NHSO2N(CH3)2


I.a.532
H
Br
H
NHSO2N(CH3)[CH(CH3)2]


I.a.533
H
Br
CH3
OH


I.a.534
H
Br
CH3
OCH3


I.a.535
H
Br
CH3
OC2H5


I.a.536
H
Br
CH3
OCH(CH3)2


I.a.537
H
Br
CH3
OCH2CH2CH3


I.a.538
H
Br
CH3
OCH2CH(CH3)2


I.a.539
H
Br
CH3
OCH2CH=CH2


I.a.540
H
Br
CH3
OCH2C≡CH


I.a.541
H
Br
CH3
OCH2CF3


I.a.542
H
Br
CH3
OCH2CHF2


I.a.543
H
Br
CH3
OC6H5


I.a.544
H
Br
CH3
OCH2(C6H5)


I.a.545
H
Br
CH3
OCH2OCH3


I.a.546
H
Br
CH3
OCH2OCH2CH3


I.a.547
H
Br
CH3
OCH2CH2OCH3


I.a.548
H
Br
CH3
OCH2CH2OCH2CH3


I.a.549
H
Br
CH3
OCH2(CO)OCH3


I.a.550
H
Br
CH3
OCH2(CO)OCH2CH3


I.a.551
H
Br
CH3
OCH(CH3)(CO)OCH3


I.a.552
H
Br
CH3
OCH(CH3)(CO)OCH2CH3


I.a.553
H
Br
CH3
OCH2-cyclopropyl


I.a.554
H
Br
CH3
OCH2-cyclobutyl


I.a.555
H
Br
CH3
SCH3


I.a.556
H
Br
CH3
SC2H5


I.a.557
H
Br
CH3
NHSO2CH3


I.a.558
H
Br
CH3
NHSO2CH(CH3)2


I.a.559
H
Br
CH3
NHSO2N(CH3)2


I.a.560
H
Br
CH3
NHSO2N(CH3)[CH(CH3)2]


I.a.561
H
Br
OCH3
OH


I.a.562
H
Br
OCH3
OCH3


I.a.563
H
Br
OCH3
OC2H5


I.a.564
H
Br
OCH3
OCH(CH3)2


I.a.565
H
Br
OCH3
OCH2CH2CH3


I.a.566
H
Br
OCH3
OCH2CH(CH3)2


I.a.567
H
Br
OCH3
OCH2CH=CH2


I.a.568
H
Br
OCH3
OCH2C≡CH


I.a.569
H
Br
OCH3
OCH2CF3


I.a.570
H
Br
OCH3
OCH2CHF2


I.a.571
H
Br
OCH3
OC6H5


I.a.572
H
Br
OCH3
OCH2(C6H5)


I.a.573
H
Br
OCH3
OCH2OCH3


I.a.574
H
Br
OCH3
OCH2OCH2CH3


I.a.575
H
Br
OCH3
OCH2CH2OCH3


I.a.576
H
Br
OCH3
OCH2CH2OCH2CH3


I.a.577
H
Br
OCH3
OCH2(CO)OCH3


I.a.578
H
Br
OCH3
OCH2(CO)OCH2CH3


I.a.579
H
Br
OCH3
OCH(CH3)(CO)OCH3


I.a.580
H
Br
OCH3
OCH(CH3)(CO)OCH2CH3


I.a.581
H
Br
OCH3
OCH2-cyclopropyl


I.a.582
H
Br
OCH3
OCH2-cyclobutyl


I.a.583
H
Br
OCH3
SCH3


I.a.584
H
Br
OCH3
SC2H5


I.a.585
H
Br
OCH3
NHSO2CH3


I.a.586
H
Br
OCH3
NHSO2CH(CH3)2


I.a.587
H
Br
OCH3
NHSO2N(CH3)2


I.a.588
H
Br
OCH3
NHSO2N(CH3)[CH(CH3)2]


I.a.589
F
Br
H
OH


I.a.590
F
Br
H
OCH3


I.a.591
F
Br
H
OC2H5


I.a.592
F
Br
H
OCH(CH3)2


I.a.593
F
Br
H
OCH2CH2CH3


I.a.594
F
Br
H
OCH2CH(CH3)2


I.a.595
F
Br
H
OCH2CH=CH2


I.a.596
F
Br
H
OCH2C≡CH


I.a.597
F
Br
H
OCH2CF3


I.a.598
F
Br
H
OCH2CHF2


I.a.599
F
Br
H
OC6H5


I.a.600
F
Br
H
OCH2(C6H5)


I.a.601
F
Br
H
OCH2OCH3


I.a.602
F
Br
H
OCH2OCH2CH3


I.a.603
F
Br
H
OCH2CH2OCH3


I.a.604
F
Br
H
OCH2CH2OCH2CH3


I.a.605
F
Br
H
OCH2(CO)OCH3


I.a.606
F
Br
H
OCH2(CO)OCH2CH3


I.a.607
F
Br
H
OCH(CH3)(CO)OCH3


I.a.608
F
Br
H
OCH(CH3)(CO)OCH2CH3


I.a.609
F
Br
H
OCH2-cyclopropyl


I.a.610
F
Br
H
OCH2-cyclobutyl


I.a.611
F
Br
H
SCH3


I.a.612
F
Br
H
SC2H5


I.a.613
F
Br
H
NHSO2CH3


I.a.614
F
Br
H
NHSO2CH(CH3)2


I.a.615
F
Br
H
NHSO2N(CH3)2


I.a.616
F
Br
H
NHSO2N(CH3)[CH(CH3)2]


I.a.617
F
Br
CH3
OH


I.a.618
F
Br
CH3
OCH3


I.a.619
F
Br
CH3
OC2H5


I.a.620
F
Br
CH3
OCH(CH3)2


I.a.621
F
Br
CH3
OCH2CH2CH3


I.a.622
F
Br
CH3
OCH2CH(CH3)2


I.a.623
F
Br
CH3
OCH2CH=CH2


I.a.624
F
Br
CH3
OCH2C≡CH


I.a.625
F
Br
CH3
OCH2CF3


I.a.626
F
Br
CH3
OCH2CHF2


I.a.627
F
Br
CH3
OC6H5


I.a.628
F
Br
CH3
OCH2(C6H5)


I.a.629
F
Br
CH3
OCH2OCH3


I.a.630
F
Br
CH3
OCH2OCH2CH3


I.a.631
F
Br
CH3
OCH2CH2OCH3


I.a.632
F
Br
CH3
OCH2CH3OCH2CH3


I.a.633
F
Br
CH3
OCH2(CO)OCH3


I.a.634
F
Br
CH3
OCH2(CO)OCH2CH3


I.a.635
F
Br
CH3
OCH(CH3)(CO)OCH3


I.a.636
F
Br
CH3
OCH(CH3)(CO)OCH2CH2


I.a.637
F
Br
CH3
OCH2-cyclopropyl


I.a.638
F
Br
CH3
OCH2-cyclobutyl


I.a.639
F
Br
CH3
SCH3


I.a.640
F
Br
CH3
SC2H5


I.a.641
F
Br
CH3
NHSO2CH3


I.a.642
F
Br
CH3
NHSO2CH(CH3)2


I.a.643
F
Br
CH3
NHSO2N(CH3)2


I.a.644
F
Br
CH3
NHSO2N(CH3)[CH(CH3)2]


I.a.645
F
Br
OCH3
OH


I.a.646
F
Br
OCH3
OCH3


I.a.647
F
Br
OCH3
OC2H5


I.a.648
F
Br
OCH3
OCH(CH3)2


I.a.649
F
Br
OCH3
OCH2CH2CH3


I.a.650
F
Br
OCH3
OCH2CH(CH3)2


I.a.651
F
Br
OCH3
OCH2CH=CH2


I.a.652
F
Br
OCH3
OCH2C≡CH


I.a.653
F
Br
OCH3
OCH2CF3


I.a.654
F
Br
OCH3
OCH2CHF2


I.a.655
F
Br
OCH3
OC6H5


I.a.656
F
Br
OCH3
OCH2(C6H5)


I.a.657
F
Br
OCH3
OCH2OCH3


I.a.658
F
Br
OCH3
OCH2OCH2CH3


I.a.659
F
Br
OCH3
OCH2CH2OCH3


I.a.660
F
Br
OCH3
OCH2CH2OCH2CH3


I.a.661
F
Br
OCH3
OCH2(CO)OCH3


I.a.662
F
Br
OCH3
OCH2(CO)OCH2CH3


I.a.663
F
Br
OCH3
OCH(CH3)(CO)OCH3


I.a.664
F
Br
OCH3
OCH(CH3)(CO)OCH2CH3


I.a.665
F
Br
OCH3
OCH2-cyclopropyl


I.a.666
F
Br
OCH3
OCH2-cyclobutyl


I.a.667
F
Br
OCH3
SCH3


I.a.668
F
Br
OCH3
SC2H5


I.a.669
F
Br
OCH3
NHSO2CH3


I.a.670
F
Br
OCH3
NHSO2CH(CH3)2


I.a.671
F
Br
OCH3
NHSO2N(CH3)2


I.a.672
F
Br
OCH3
NHSO2N(CH3)[CH(CH3)2]









Also preferred are the uracilpyridines of formula (I.b), preferably the uracilpyridines of formulae (I.b.1) to (I.b.672), particularly preferred the uracilpyridines of formulae (I.b.1) to (I.b.504), which differ from the corresponding uracilpyridines of formulae (I.a.1) to (I.a.672) only in that Q is S:




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Also preferred are the uracilpyridines of formula (I.c), preferably the uracilpyridines of formulae (I.c.1) to (I.c.672), particularly preferred the uracilpyridines of formulae (I.c.1) to (I.c.504), which differ from the corresponding uracilpyridines of formulae (I.a.1) to (I.a.672) only in that Z is Z−2, wherein Ra, Rb, Rc and Re are H:




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Also preferred are the uracilpyridines of formula (I.d), preferably the uracilpyridines of formulae (I.d.1) to (I.d.672), particularly preferred the uracilpyridines of formulae (I.d.1) to (I.d.504), which differ from the corresponding uracilpyridines of formulae (I.a.1) to (I.a.672) only in that Z is Z−3, wherein Ra, Rb, Rd and Re are H:




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Also preferred are the uracilpyridines of formula (I.e), preferably the uracilpyridines of formulae (I.e.1) to (I.e.672), particularly preferred the uracilpyridines of formulae (I.e.1) to (I.e.504), which differ from the corresponding uracilpyridines of formulae (I.a.1) to (I.a.672) only in that Z is Z−4, wherein Rb, Rc and Rd are H:




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Also preferred are the uracilpyridines of formula (l.f), preferably the uracilpyridines of formulae (I.f.1) to (I.f.672), particularly preferred the uracilpyridines of formulae (I.f.1) to (I.f.504), which differ from the corresponding uracilpyridines of formulae (I.a.1) to (I.a.672) only in that Z is Z−5, wherein Ra, Rc and Rd are H:




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Also preferred are the uracilpyridines of formula (I.g), preferably the uracilpyridines of formulae (I.g.1) to (I.g.672),particularly preferred the uracilpyridines of formulae (I.g.1) to (I.g.504), which differ from the corresponding uracilpyridines of formulae (I.a.1) to (I.a.672) only in that Z is Z−6, wherein Ra, Rb and Rd are H:




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Also preferred are the uracilpyridines of formula (I.h), preferably the uracilpyridines of formulae (I.h.1) to (I.h.672), particularly preferred the uracilpyridines of formulae (I.h.1) to (I.h.504), which differ from the corresponding uracilpyridines of formulae (I.a.1) to (I.a.672) only in that Z is Z−7, wherein Ra, Rb and Rc are H:




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Also preferred are the uracilpyridines of formula (I.i) preferably the uracilpyridines of formulae (I.i.1) to (I.i.672), particularly preferred the uracilpyridines of formulae (I.i.1) to (I.i.504), which differ from the corresponding uracilpyridines of formulae (I.a.1) to (I.a.672) only in that Z is Z−7, wherein Ra, Rb and Rc are H, and Q is S:




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Also preferred are the uracilpyridines of formula (I.k), preferably the uracilpyridines of formulae (I.k.1) to (I.k.672), particularly preferred the uracilpyridines of formulae (I.k.1) to (I.k.504), which differ from the corresponding uracilpyridines of formulae (I.a.1) to (I.a.672) only in that Z is Z−8, wherein Rb, Rc and Re are H:




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Also preferred are the uracilpyridines of formula (I.I), preferably the uracilpyridines of formulae (I.I.1) to (I.I.672), particularly preferred the uracilpyridines of formulae (I.I.1) to (I.I.504), which differ from the corresponding uracilpyridines of formulae (I.a.1) to (I.a.672) only in that Z is Z−9, wherein Ra, Rc and Re are H:




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Also preferred are the uracilpyridines of formula (I.m), preferably the uracilpyridines of formulae (I.m.1) to (I.m.672), particularly preferred the uracilpyridines of formulae (I.m.1) to (I.m.504), which differ from the corresponding uracilpyridines of formulae (I.a.1) to (I.a.672) only in that Z is Z−10, wherein Ra, Rb and Re are H:




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Also preferred are the uracilpyridines of formula (l.n), preferably the uracilpyridines of formulae (I.n.1) to (I.n.672), particularly preferred the uracilpyridines of formulae (I.n.1) to (I.n.504), which differ from the corresponding uracilpyridines of formulae (I.a.1) to (I.a.672) only in that Z is Z−11, wherein Ra, Rb and Rc are H:




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Also preferred are the uracilpyridines of formula (1.0), preferably the uracilpyridines of formulae


(I.o.1) to (I.o.672), particularly preferred the uracilpyridines of formulae (I.o.1) to (I.o.504), which differ from the corresponding uracilpyridines of formulae (I.a.1) to (I.a.672) only in that Z is Z−12, wherein Rb, Rd and Re are H:




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Also preferred are the uracilpyridines of formula (I.p), preferably the uracilpyridines of formulae (I.p.1) to (I.p.672), particularly preferred the uracilpyridines of formulae (I.p.1) to (I.p.504), which differ from the corresponding uracilpyridines of formulae (I.a.1) to (I.a.672) only in that Z is Z−13, wherein Ra, Rd and Re are H:




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Also preferred are the uracilpyridines of formula (I.q), preferably the uracilpyridines of formulae (I.q.1) to (I.q.672), particularly preferred the uracilpyridines of formulae (I.q.1) to (I.q.504), which differ from the corresponding uracilpyridines of formulae (I.a.1) to (I.a.672) only in that Z is Z−21, wherein Ra and Rc are H:




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To widen the spectrum of action and to achieve synergistic effects, the uracilpyridines of formula (I) may be mixed with a large number of representatives of other herbicidal or growth-regulating active ingredient groups and then applied concomitantly. Suitable components for mixtures are, for example, herbicides from the classes of the acetamides, amides, aryloxyphenoxypropionates, benzamides, benzofuran, benzoic acids, benzothiadiazinones, bipyridylium, carbamates, chloroacetamides, chlorocarboxylic acids, cyclohexanediones, dinitroanilines, dinitrophenol, diphenyl ether, glycines, imidazolinones, isoxazoles, isoxazolidinones, nitriles, N-5 phenylphthalimides, oxadiazoles, oxazolidinediones, oxyacetamides, phenoxycarboxylic acids, phenylcarbamates, phenylpyrazoles, phenylpyrazolines, phenylpyridazines, phosphinic acids, phosphoroamidates, phosphorodithioates, phthalamates, pyrazoles, pyridazinones, pyridines, pyridinecarboxylic acids, pyridinecarboxamides, pyrimidinediones, pyrimidinyl(thio)benzoates, quinolinecarboxylic acids, semicarbazones, sulfonylaminocarbonyltriazolinones, sulfonylureas, tetrazolinones, thiadiazoles, thiocarbamates, triazines, triazinones, triazoles, triazolinones, triazolocarboxamides, triazolopyrimidines, triketones, uracils, ureas.


It may furthermore be beneficial to apply the uracilpyridines of formula (I) alone or in combination with other herbicides, or else in the form of a mixture with other crop protection agents, for example together with agents for controlling pests or phytopathogenic fungi or bacteria. Also of interest is the miscibility with mineral salt solutions, which are employed for treating nutritional and trace element deficiencies. Other additives such as non-phytotoxic oils and oil concentrates may also be added.


In one embodiment of the present invention the compositions according to the present invention comprise at least one uracilpyridine of formula (I) (compound A) and at least one further active compound selected from herbicides B, preferably herbicides B of class b1) to b15), and safeners C (compound C).


In another embodiment of the present invention the compositions according to the present invention comprise at least one uracilpyridine of formula (I) and at least one further active compound B (herbicide B).


The further herbicidal compound B (component B) is preferably selected from the herbicides of class 131) to b15):


b1) lipid biosynthesis inhibitors;


b2) acetolactate synthase inhibitors (ALS inhibitors);


b3) photosynthesis inhibitors;


b4) protoporphyrinogen-IX oxidase inhibitors,


b5) bleacher herbicides;


b6) enolpyruvyl shikimate 3-phosphate synthase inhibitors (EPSP inhibitors);


b7) glutamine synthetase inhibitors;


b8) 7,8-dihydropteroate synthase inhibitors (DHP inhibitors);


b9) mitosis inhibitors;


b10) inhibitors of the synthesis of very long chain fatty acids (VLCFA inhibitors);


b11) cellulose biosynthesis inhibitors;


b12) decoupler herbicides;


b13) auxinic herbicides;


b14) auxin transport inhibitors; and


b15) other herbicides selected from the group consisting of bromobutide, chlorflurenol, chlorflurenol-methyl, cinmethylin, cumyluron, dalapon, dazomet, difenzoquat, difenzoquat-metilsulfate, dimethipin, DSMA, dymron, endothal and its salts, etobenzanid, flamprop, flamprop-isopropyl, flamprop-methyl, flamprop-M-isopropyl, flamprop-M-methyl, flurenol, flurenol-butyl, flurprimidol, fosamine, fosamine-ammonium, indanofan, indaziflam, maleic hydrazide, mefluidide, metam, methiozolin (CAS 403640-27-7), methyl azide, methyl bromide, methyl-dymron, methyl iodide, MSMA, oleic acid, oxaziclomefone, pelargonic acid, pyributicarb, quinoclamine, triaziflam, tridiphane and 6-chloro-3-(2-cyclopropyl-6-methylphenoxy)-4-pyridazinol (CAS 499223-49-3) and its salts and esters;


including their agriculturally acceptable salts or derivatives.


Preference is given to those compositions according to the present invention comprising at least one herbicide B selected from herbicides of class b2, b3, b4, b5, b6, b7, b9, b10 and b13.


Specific preference is given to those compositions according to the present invention which comprise at least one herbicide B selected from the herbicides of class b4, b6, b7, b9, b10 and b13.


Particular preference is given to those compositions according to the present invention which comprise at least one herbicide B selected from the herbicides of class b4, b6, b10 and b13.


Examples of herbicides B which can be used in combination with the uracilpyridines of formula (I) of formula (I) according to the present invention are:


b1) from the group of the lipid biosynthesis inhibitors:


ACC-herbicides such as alloxydim, alloxydim-sodium, butroxydim, clethodim, clodinafop, clodinafop-propargyl, cycloxydim, cyhalofop, cyhalofop-butyl, diclofop, diclofop-methyl, fenoxaprop, fenoxaprop-ethyl, fenoxaprop-P, fenoxaprop-P-ethyl, fluazifop, fluazifop-butyl, fluazifop-P, fluazifop-P-butyl, haloxyfop, haloxyfop-methyl, haloxyfop-P, haloxyfop-P-methyl, metamifop, pinoxaden, profoxydim, propaquizafop, quizalofop, quizalofop-ethyl, quizalofop-tefuryl, quizalofop-P, quizalofop-P-ethyl, quizalofop-P-tefuryl, sethoxydim, tepraloxydim, tralkoxydim, 4-(4′-Chloro-4-cyclopropyl-2′-fluoro[1,1′-biphenyl]-3-yl)-5-hydroxy-2,2,6,6-tetramethyl-2H-pyran-3(6H)-one (CAS 1312337-72-6); 4-(2′,4′-Dichloro-4-cyclopropyl[1,1′-biphenyl]-3-yl)-5-hydroxy-2,2,6,6-tetramethyl-2H-pyran-3(6H)-one (CAS 1312337-45-3); 4-(4′-Chloro-4-ethyl-2′-fluoro[1,1′-biphenyl]-3-yl)-5-hydroxy-2,2,6,6-tetramethyl-2H-pyran-3(6H)-one (CAS 1033757-93-5); 4-(2′,4′-Dichloro-4-ethyl[1,1′-biphenyl]-3-yl)-2,2,6,6-tetramethyl-2H-pyran-3,5(4H,6H)-dione (CAS 1312340-84-3); 5-(Acetyloxy)-4-(4′-chloro-4-cyclopropyl-2′-fluoro[1,1′-biphenyl]-3-yl)-3,6-dihydro-2,2,6,6-tetramethyl-2H-pyran-3-one (CAS 1312337-48-6); 5-(Acetyloxy)-4-(2″,4′-dichloro-4-cyclopropyl- [1,1′-biphenyl]-3-yl)-3,6-dihydro-2,2,6,6-tetramethyl-2H-pyran-3-one; 5-(Acetyloxy)-4-(4′-chloro-4-ethyl-2′-fluoro[1,1′-biphenyl]-3-yl)-3,6-dihydro-2,2,6,6-tetramethyl-2H-pyran-3-one (CAS 1312340-82-1); 5-(Acetyloxy)-4-(2′,4′-dichloro-4-ethyl[1,1′-biphenyl]-3-yl)-3,6-dihydro-2,2,6,6-tetramethyl-2H-pyran-3-one (CAS 1033760-55-2); 4-(4′-Chloro-4-cyclopropyl-2′-5 fluoro[1,1′-biphenyl]-3-yl)-5,6-dihydro-2,2,6,6-tetramethyl-5-oxo-2H-pyran-3-yl carbonic acid methyl ester (CAS 1312337-51-1); 4-(2″,4′-Dichloro -4-cyclopropyl- [1,1′-biphenyl]-3-yl)-5,6-dihydro-2,2,6,6-tetramethyl-5-oxo-2H-pyran-3-ylcarbonic acid methyl ester; 4-(4′-Chloro-4-ethyl-2′-fluoro[1,1′-biphenyl]-3-yl)-5,6-dihydro-2,2,6,6-tetramethyl-5-oxo-2H-pyran-3-yl carbonic acid methyl ester (CAS 1312340-83-2); 4-(2′,4′-Dichloro-4-ethyl[1,1′-biphenyl]-3-yl)-5,6-dihydro-2,2,6,6-tetramethyl-5-oxo-2H-pyran-3-yl carbonic acid methyl ester (CAS 1033760-58-5); and non ACC herbicides such as benfuresate, butylate, cycloate, dalapon, dimepiperate, EPTC, esprocarb, ethofumesate, flupropanate, molinate, orbencarb, pebulate, prosulfocarb, TCA, thiobencarb, tiocarbazil, triallate and vernolate;


b2) from the group of the ALS inhibitors:


sulfonylureas such as amidosulfuron, azimsulfuron, bensulfuron, bensulfuron-methyl, chlorimuron, chlorimuron-ethyl, chlorsulfuron, cinosulfuron, cyclosulfamuron, ethametsulfuron, ethametsulfuron-methyl, ethoxysulfuron, flazasulfuron, flucetosulfuron, flupyrsulfuron, flupyrsulfuron-methyl-sodium, foramsulfuron, halosulfuron, halosulfuron-methyl, imazosulfuron, iodosulfuron, iodosulfuron-methyl-sodium, iofensulfuron, iofensulfuron-sodium, mesosulfuron, metazosulfuron, metsulfuron, metsulfuron-methyl, nicosulfuron, orthosulfamuron, oxasulfuron, primisulfuron, primisulfuron-methyl, propyrisulfuron, prosulfuron, pyrazosulfuron, pyrazosulfuron-ethyl, rimsulfuron, sulfometuron, sulfometuron-methyl, sulfosulfuron, thifensulfuron, thifensulfuron-methyl, triasulfuron, tribenuron, tribenuron-methyl, trifloxysulfuron, triflusulfuron, triflusulfuron-methyl and tritosulfuron,


imidazolinones such as imazamethabenz, imazamethabenz-methyl, imazamox, imazapic, imazapyr, imazaquin and imazethapyr, triazolopyrimidine herbicides and sulfonanilides such as cloransulam, cloransulam-methyl, diclosulam, flumetsulam, florasulam, metosulam, penoxsulam, pyrimisulfan and pyroxsulam,


pyrimidinylbenzoates such as bispyribac, bispyribac-sodium, pyribenzoxim, pyriftalid, pyriminobac, pyriminobac-methyl, pyrithiobac, pyrithiobac-sodium, 4-[[[2-[(4,6-dimethoxy-2-pyrimidinyl)oxy]phenyl]methyl]amino]-benzoic acid-1-methylethyl ester (CAS 420138-41-6), 4-[[[2-[(4,6-dimethoxy-2-pyrimidinyl)oxy]phenyl]methyl]amino]-benzoic acid propyl ester (CAS 420138-40-5), N-(4-bromophenyl)-2-[(4,6-dimethoxy-2-pyrimidinyl)oxy]benzenemethanamine (CAS 420138-01-8), sulfonylaminocarbonyl-triazolinone herbicides such as flucarbazone, flucarbazone-sodium, propoxycarbazone, propoxycarbazone-sodium, thiencarbazone and thiencarbazone-methyl; and triafamone;


among these, a preferred embodiment of the invention relates to those compositions comprising at least one imidazolinone herbicide;


b3) from the group of the photosynthesis inhibitors:


amicarbazone, inhibitors of the photosystem II, e.g. 1-(6-tert-butylpyrimidin-4-yl)-2-hydroxy-4-methoxy-3-methyl-2H-pyrrol-5-one (CAS 1654744-66-7), 1-(5-tert-butylisoxazol-3-yl)-2-hydroxy-4-methoxy-3-methyl-2H-pyrrol-5-one (CAS 1637455-12-9), 1-(5-tert-butylisoxazol-3-yl)-4-chloro-2-hydroxy-3-methyl-2H-pyrrol-5-one (CAS 1637453-94-1), 1-5 (5-tert-butyl-1-methyl-pyrazol-3-yl)-4-chloro-2-hydroxy-3-methyl-2H-pyrrol-5-one (CAS 1654057-29-0), 1-(5-tert-butyl-1-methyl-pyrazol-3-yl)-3-chloro-2-hydroxy-4-methyl-2H-pyrrol-5-one (CAS 1654747-80-4), 4-hydroxy-1-methoxy-5-methyl-344-(trifluoromethyl)-2-pyridydimidazolidin-2-one; (CAS 2023785-78-4), 4-hydroxy-1,5-dimethyl-344-(trifluoromethyl)-2-pyridydimidazolidin-2-one (CAS 2023785-79-5), 5-ethoxy-4-hydroxy-1-methyl-3[4-(trifluoromethyl)-2-pyridy]imidazolidin-2-one (CAS 1701416-69-4), 4-hydroxy-1-methyl-344-(trifluoromethyl)-2-pyridydimidazolidin-2-one (CAS 1708087-22-2), 4-hydroxy-1,5-dimethyl-341-methyl-5-(trifluoromethyppyrazol-3-ydimidazolidin-2-one (CAS 2023785-80-8), 1-(5-tert-butylisoxazol-3-yl)-4-ethoxy-5-hydroxy-3-methyl-imidazolidin-2-one (CAS 1844836-64-1), triazine herbicides, including of chlorotriazine, triazinones, triazindiones, methylthiotriazines and pyridazinones such as ametryn, atrazine, chloridazone, cyanazine, desmetryn, dimethametryn,hexazinone, metribuzin, prometon, prometryn, propazine, simazine, simetryn, terbumeton, terbuthylazin, terbutryn and trietazin, aryl urea such as chlorobromuron, chlorotoluron, chloroxuron, dimefuron, diuron, fluometuron, isoproturon, isouron, linuron, metamitron, methabenzthiazuron, metobenzuron, metoxuron, monolinuron, neburon, siduron, tebuthiuron and thiadiazuron, phenyl carbamates such as desmedipham, karbutilat, phenmedipham, phenmedipham-ethyl, nitrile herbicides such as bromofenoxim, bromoxynil and its salts and esters, ioxynil and its salts and esters, uraciles such as bromacil, lenacil and terbacil, and bentazon and bentazon-sodium, pyridate, pyridafol, pentanochlor and propanil and inhibitors of the photosystem I such as diquat, diquat-dibromide, paraquat, paraquat-dichloride and paraquat-dimetilsulfate. Among these, a preferred embodiment of the invention relates to those compositions comprising at least one aryl urea herbicide. Among these, likewise a preferred embodiment of the invention relates to those compositions comprising at least one triazine herbicide. Among these, likewise a preferred embodiment of the invention relates to those compositions comprising at least one nitrile herbicide;


b4) from the group of the protoporphyrinogen-IX oxidase inhibitors:


acifluorfen, acifluorfen-sodium, azafenidin, bencarbazone, benzfendizone, bifenox, butafenacil, carfentrazone, carfentrazone-ethyl, chlomethoxyfen, chlorphtalim, cinidon-ethyl, fluazolate, flufenpyr, flufenpyr-ethyl, flumiclorac, flumiclorac-pentyl, flumioxazin, fluoroglycofen, fluoroglycofen-ethyl, fluthiacet, fluthiacet-methyl, fomesafen, halosafen, lactofen, oxadiargyl, oxadiazon, oxyfluorfen, pentoxazone, profluazol, pyraclonil, pyraflufen, pyraflufen-ethyl, saflufenacil, sulfentrazone, thidiazimin, tiafenacil, trifludimoxazin, ethyl [3-[2-chloro-4-fluoro-5-(1-methyl-6-trifluoromethyl-2,4-dioxo-1,2,3,4-tetrahydropyrimidin-3-yl)phenoxy]-2-pyridyloxy]acetate (CAS 353292-31-6; S-3100, N-ethyl-3-(2,6-dichloro-4-trifluoromethylphenoxy)-5-methyl-1H-pyrazole-1-carboxamide (CAS 452098-92-9), N-tetrahydrofurfuryl-3-(2,6-dichloro-4-trifluoromethylphenoxy)-5-methyl-1H-pyrazole-1-carboxamide (CAS 915396-43-9), N-ethyl-3-(2-chloro-6-fluoro-4-trifluoromethylphenoxy)-5-methyl-1H-pyrazole-1-carboxamide (CAS 452099-05-7), N-tetrahydrofurfuryl-3-(2-chloro-6-fluoro-4-trifluoromethylphenoxy)-5-methyl-1H-pyrazole-1-carboxamide (CAS 452100-03-7), 3-[7-fluoro-3-oxo-4-(prop-2-ynyl)-3,4-dihydro-2H-benzo[1,4]oxazin-6-yl]-1,5-dimethyl-6-thioxo-[1,3,5]triazinan-2,4-dione (CAS 451484-50-7), 2-(2,2,7-trifluoro-3-oxo-4-prop-2-5 ynyl-3,4-dihydro-2H-benzo[1,4]oxazin-6-yl)-4,5,6,7-tetrahydro-isoindole-1,3-dione (CAS 1300118-96-0), 1-methyl-6-trifluoromethyl-3-(2,2,7-trifluoro-3-oxo-4-prop-2-ynyl-3,4-dihydro-2H-benzo[1,4]oxazin-6-yl)-1H-pyrimidine-2,4-dione (CAS 1304113-05-0), methyl (E)-4-[2-chloro-5-[4-chloro-5-(difluoromethoxy)-1H-methyl-pyrazol-3-yl]-4-fluoro-phenoxy]-3-methoxy-but-2-enoate (CAS 948893-00-3), and 3-[7-chloro-5-fluoro-2-(trifluoromethyl)-1H-benzimidazol-4-yl]-1-methyl-6-(trifluoromethyl)-1H-pyrimidine-2,4-dione (CAS 212754-02-4);


b5) from the group of the bleacher herbicides:


PDS inhibitors: beflubutamid, diflufenican, fluridone, flurochloridone, flurtamone, norflurazon, picolinafen, and 4-(3-trifluoromethylphenoxy)-2-(4-trifluoromethylphenyl)-pyrimidine (CAS 180608-33-7), HPPD inhibitors: benzobicyclon, benzofenap, bicyclopyrone, clomazone, fenquinotrione, isoxaflutole, mesotrione, oxotrione (CAS 1486617-21-3), pyrasulfotole, pyrazolynate, pyrazoxyfen, sulcotrione, tefuryltrione, tembotrione, tolpyralate, topramezone , bleacher, unknown target: aclonifen, amitrole flumeturon and 2-chloro-3-methylsulfanyl-N-(1-methyltetrazol-5-yl)-4-(trifluoromethyl)benzamide (CAS 1361139-71-0), 2-(2,4-dichlorophenyl)methyl-4,4-dimethyl-3-isoxazolidone (CAS 81777-95-9) and 2-(2,5-dichlorophenyl)methyl-4,4-dimethyl-3-isoxazolidinone (CAS 81778-66-7);


b6) from the group of the EPSP synthase inhibitors:


glyphosate, glyphosate-isopropylammonium, glyposate-potassium and glyphosate-trimesium (sulfosate);


b7) from the group of the glutamine synthase inhibitors: bilanaphos (bialaphos), bilanaphos-sodium, glufosinate, glufosinate-P and glufosinate-ammonium;


b8) from the group of the DHP synthase inhibitors: asulam;


b9) from the group of the mitosis inhibitors:


compounds of group K1: dinitroanilines such as benfluralin, butralin, dinitramine, ethalfluralin, fluchloralin, oryzalin, pendimethalin, prodiamine and trifluralin, phosphoramidates such as amiprophos, amiprophos-methyl, and butamiphos, benzoic acid herbicides such as chlorthal, chlorthal-dimethyl, pyridines such as dithiopyr and thiazopyr, benzamides such as propyzamide and tebutam; compounds of group K2: carbetamide, chlorpropham, flamprop, flamprop-isopropyl, flamprop-methyl, flamprop-M-isopropyl, flamprop-M-methyl and propham ; among these, compounds of group K1, in particular dinitroanilines are preferred;


b10) from the group of the VLCFA inhibitors:


chloroacetamides such as acetochlor, alachlor, amidochlor, butachlor, dimethachlor, dimethenamid, dimethenamid-P, metazachlor, metolachlor, metolachlor-S, pethoxamid, pretilachlor, propachlor, propisochlor and thenylchlor, oxyacetanilides such as flufenacet and mefenacet, acetanilides such as diphenamid, naproanilide, napropamide and napropamide-M, tetrazolinones such fentrazamide, and other herbicides such as anilofos, cafenstrole, fenoxasulfone, ipfencarbazone, piperophos, pyroxasulfone and isoxazoline compounds of the formulae II.1, II.2, II.3, II.4, II.5, II.6, II.7, II.8 and II.9




embedded image


embedded image




    • the isoxazoline compounds of the formula (1)1 are known in the art, e.g. from WO 2006/024820, WO 2006/037945, WO 2007/071900 and WO 2007/096576;

    • among the VLCFA inhibitors, preference is given to chloroacetamides and oxyacetamides;





bll) from the group of the cellulose biosynthesis inhibitors: chlorthiamid, dichlobenil, flupoxam, indaziflam, isoxaben, triaziflam and 1-cyclohexyl-5-pentafluorphenyloxy-14-[1,2,4,6]thiatriazin-3-ylamine (CAS 175899-01-1);


b12) from the group of the decoupler herbicides:


dinoseb, dinoterb and DNOC and its salts;


b13) from the group of the auxinic herbicides: 2,4-D and its salts and esters such as clacyfos, 2,4-DB and its salts and esters, aminocyclopyrachlor and its salts and esters, aminopyralid and its salts such as aminopyralid-dimethylammonium, aminopyralid-tris(2-hydroxypropyl)ammonium and its esters, benazolin, benazolin-ethyl, chloramben and its salts and esters, clomeprop, clopyralid and its salts and esters, dicamba and its salts and esters, dichlorprop and its salts and esters, dichlorprop-P and its salts and esters, flopyrauxifen, fluroxypyr, fluroxypyr-butometyl, fluroxypyr-meptyl, halauxifen and its salts and esters (CAS 943832-60-8); MCPA and its salts and esters, MCPA-thioethyl, MCPB and its salts and esters, mecoprop and its salts and esters, mecoprop-P and its salts and esters, picloram and its salts and esters, quinclorac, quinmerac, TBA (2,3,6) and its salts and esters, triclopyr and its salts and esters, florpyrauxifen, florpyrauxifen-benzyl (CAS 1390661-72-9) and 4-amino-3-chloro-5-fluoro-6-(7-fluoro-1H-indo1-6-yl)picolinic acid (CAS 1629965-65-6);


b14) from the group of the auxin transport inhibitors: diflufenzopyr, diflufenzopyr-sodium, naptalam and naptalam-sodium;


b15) from the group of the other herbicides: bromobutide, chlorflurenol, chlorflurenol-methyl, cinmethylin, cumyluron, cyclopyrimorate (CAS 499223-49-3) and its salts and esters, dalapon, dazomet, difenzoquat, difenzoquat-metilsulfate, dimethipin, DSMA, dymron, endothal and its salts, etobenzanid, flurenol, flurenol-butyl, flurprimidol, fosamine, fosamine-ammonium, indanofan, maleic hydrazide, mefluidide, metam, methiozolin (CAS 403640-27-7), methyl azide, methyl bromide, methyl-dymron, methyl iodide, MSMA, oleic acid, oxaziclomefone, pelargonic acid, pyributicarb, quinoclamine and tridiphane.


Active compounds B and C having a carboxyl group can be employed in the form of the acid, in the form of an agriculturally suitable salt as mentioned above or else in the form of an agriculturally acceptable derivative in the compositions according to the invention.


In the case of dicamba, suitable salts include those, where the counterion is an agriculturally acceptable cation. For example, suitable salts of dicamba are dicamba-sodium, dicamba-potassium, dicamba-methylammonium, dicamba-dimethylammonium, dicamba-isopropylammonium, dicamba-diglycolamine, dicamba-olamine, dicamba-diolamine, dicamba-trolamine, dicamba-N,N-bis-(3-aminopropyl)methylamine and dicamba-diethylenetriamine. Examples of a suitable ester are dicamba-methyl and dicamba-butotyl. Suitable salts of 2,4-D are 2,4-D-ammonium, 2,4-D-dimethylammonium, 2,4-D-diethylammonium, 2,4-D-diethanolammonium (2,4-D-diolamine), 2,4-D-triethanolammonium, 2,4-D-isopropylammonium, 2,4-D-triisopropanolammonium, 2,4-D-heptylammonium, 2,4-D-dodecylammonium, 2,4-D-tetradecylammonium, 2,4-D-triethylammonium, 2,4-D-tris(2-hydroxypropyl)ammonium, 2,4-D-tris(isopropyl)ammonium, 2,4-D-trolamine, 2,4-D-lithium, 2,4-D-sodium. Examples of suitable esters of 2,4-D are 2,4-D-butotyl, 2,4-D-2-butoxypropyl, 2,4-D-3-butoxypropyl, 2,4-D-butyl, 2,4-D-ethyl, 2,4-D-ethylhexyl, 2,4-D-isobutyl, 2,4-D-isooctyl, 2,4-D-isopropyl, 2,4-D-meptyl, 2,4-D-methyl, 2,4-D-octyl, 2,4-D-pentyl, 2,4-D-propyl, 2,4-D-tefuryl and clacyfos.


Suitable salts of 2,4-DB are for example 2,4-DB-sodium, 2,4-DB-potassium and 2,4-DB-dimethylammonium. Suitable esters of 2,4-DB are for example 2,4-DB-butyl and 2,4-DB-isoctyl. Suitable salts of dichlorprop are for example dichlorprop-sodium, dichlorprop-potassium and dichlorprop-dimethylammonium. Examples of suitable esters of dichlorprop are dichlorprop-butotyl and dichlorprop-isoctyl. Suitable salts and esters of MCPA include MCPA-butotyl, MCPA-butyl, MCPA-dimethyl-ammonium, MCPA-diolamine, MCPA-ethyl, MCPA-thioethyl, MCPA-2-ethylhexyl, MCPA-isobutyl, MCPA-isoctyl, MCPA-isopropyl, MCPA-isopropylammonium, MCPA-methyl, MCPA-olamine, MCPA-potassium, MCPA-sodium and MCPA-trolamine.


A suitable salt of MCPB is MCPB sodium. A suitable ester of MCPB is MCPB-ethyl. Suitable salts of clopyralid are clopyralid-potassium, clopyralid-olamine and clopyralid-tris-(2-hydroxypropyl)ammonium. Example of suitable esters of clopyralid is clopyralid-methyl. Examples of a suitable ester of fluroxypyr are fluroxypyr-meptyl and fluroxypyr-2-butoxy-1-methylethyl, wherein fluroxypyr-meptyl is preferred.


Suitable salts of picloram are picloram-dimethylammonium, picloram-potassium, picloram-triisopropanolammonium, picloram-triisopropylammonium and picloram-trolamine. A suitable ester of picloram is picloram-isoctyl.


A suitable salt of triclopyr is triclopyr-triethylammonium. Suitable esters of triclopyr are for example triclopyr-ethyl and triclopyr-butotyl.


Suitable salts and esters of chloramben include chloramben-ammonium, chloramben-diolamine, chloramben-methyl, chloramben-methylammonium and chloramben-sodium. Suitable salts and esters of 2,3,6-TBA include 2,3,6-TBA-dimethylammonium, 2,3,6-TBA-lithium, 2,3,6-TBA-potassium and 2,3,6-TBA-sodium.


Suitable salts and esters of aminopyralid include aminopyralid-potassium, aminopyralid-dimethylammonium, and aminopyralid-tris(2-hydroxypropyl)ammonium. Suitable salts of glyphosate are for example glyphosate-ammonium, glyphosate-diammonium, glyphoste-dimethylammonium, glyphosate-isopropylammonium, glyphosate-potassium, glyphosate-sodium, glyphosate-trimesium as well as the ethanolamine and diethanolamine salts, preferably glyphosate-diammonium, glyphosate-isopropylammonium and glyphosate-trimesium (sulfosate).


A suitable salt of glufosinate is for example glufosinate-ammonium.


A suitable salt of glufosinate-P is for example glufosinate-P-ammonium.


Suitable salts and esters of bromoxynil are for example bromoxynil-butyrate, bromoxynil-heptanoate, bromoxynil-octanoate, bromoxynil-potassium and bromoxynil-sodium. Suitable salts and esters of ioxonil are for example ioxonil-octanoate, ioxonil-potassium and ioxonil-sodium.


Suitable salts and esters of mecoprop include mecoprop-butotyl, mecoprop-dimethylammonium, mecoprop-diolamine, mecoprop-ethadyl, mecoprop-2-ethylhexyl, mecoprop-isoctyl, mecoprop-methyl, mecoprop-potassium, mecoprop-sodium and mecoprop-trolamine.


Suitable salts of mecoprop-P are for example mecoprop-P-butotyl, mecoprop-P-dimethylammonium, mecoprop-P-2-ethylhexyl, mecoprop-P-isobutyl, mecoprop-P-potassium and mecoprop-P-sodium.


A suitable salt of diflufenzopyr is for example diflufenzopyr-sodium.


A suitable salt of naptalam is for example naptalam-sodium.


Suitable salts and esters of aminocyclopyrachlor are for example aminocyclopyrachlor-dimethylammonium, aminocyclopyrachlor-methyl, aminocyclopyrachlor-triisopropanolammonium, aminocyclopyrachlor-sodium and aminocyclopyrachlor-potassium.


A suitable salt of quinclorac is for example quinclorac-dimethylammonium.


A suitable salt of quinmerac is for example quinmerac-dimethylammonium.


A suitable salt of imazamox is for example imazamox-ammonium.


Suitable salts of imazapic are for example imazapic-ammonium and imazapic-isopropylammonium.


Suitable salts of imazapyr are for example imazapyr-ammonium and imazapyr-isopropylammonium.


A suitable salt of imazaquin is for example imazaquin-ammonium. Suitable salts of imazethapyr are for example imazethapyr-ammonium and imazethapyr-isopropylammonium.


A suitable salt of topramezone is for example topramezone-sodium.


Particularly preferred herbicides B are the herbicides B as defined above; in particular the herbicides B.1 - B.202, especially the herbicides B.1 - B.201 listed below in table B:












TABLE B








Herbicide B









A.1
clethodim



A.2
clodinafop-propargyl



A.3
cycloxydim



A.4
cyhalofop-butyl



A.5
fenoxaprop-ethyl



A.6
fenoxaprop-P-ethyl



A.7
metamifop



A.8
pinoxaden



A.9
profoxydim



A.10
sethoxydim



A.11
tepraloxydim



A.12
tralkoxydim



A.13
esprocarb



A.14
ethofumesate



A.15
molinate



A.16
prosulfocarb



A.17
thiobencarb



A.18
triallate



A.19
bensulfuron-methyl



A.20
bispyribac-sodium



A.21
cloransulam-methyl



A.22
chlorsulfuron



A.23
clorimuron



A.24
cyclosulfamuron



A.25
diclosulam



A.26
florasulam



A.27
flumetsulam



A.28
flupyrsulfuron-methyl-




sodium



A.29
foramsulfuron



A.30
imazamox



A.31
imazamox-ammonium



A.32
imazapic



A.33
imazapic-ammonium



A.34
imazapic-




isopropylammonium



A.35
imazapyr



A.36
imazapyr-ammonium



A.37
imazapyr-




isopropylammonium



A.38
imazaquin



A.39
imazaquin-ammonium



A.40
imazethapyr



A.41
imazethapyr-ammonium



A.42
imazethapyr-




isopropylammonium



A.43
imazosulfuron



A.44
iodosulfuron-methyl-




sodium



A.45
iofensulfuron



A.46
iofensulfuron-sodium



A.47
mesosulfuron-methyl



A.48
metazosulfuron



A.49
metsulfuron-methyl



A.50
metosulam



A.51
nicosulfuron



A.52
penoxsulam



A.53
propoxycarbazon-sodium



A.54
pyrazosulfuron-ethyl



A.55
pyribenzoxim



A.56
pyriftalid



A.57
pyroxsulam



A.58
propyrisulfuron



A.59
rimsulfuron



A.60
sulfosulfuron



A.61
thiencarbazone-methyl



A.62
thifensulfuron-methyl



A.63
tribenuron-methyl



A.64
tritosulfuron



A.65
triafamone



A.66
ametryne



A.67
atrazine



A.68
bentazon



A.69
bromoxynil



A.70
bromoxynil-octanoate



A.71
bromoxynil-heptanoate



A.72
bromoxynil-potassium



A.73
diuron



A.74
fluometuron



A.75
hexazinone



A.76
isoproturon



A.77
linuron



A.78
metamitron



A.79
metribuzin



A.80
propanil



A.81
simazin



A.82
terbuthylazine



A.83
terbutryn



A.84
paraquat-dichloride



A.85
acifluorfen



A.86
butafenacil



A.87
carfentrazone-ethyl



A.88
flumioxazin



A.89
fomesafen



A.90
oxadiargyl



A.91
oxyfluorfen



A.92
pyraflufen



A.93
pyraflufen-ethyl



A.94
saflufenacil



A.95
sulfentrazone



A.96
trifludimoxazin



A.97
ethyl [3-[2-chloro-4-fluoro-




5-(1-methyl-6-




trifluoromethyl-2,4-dioxo-




1,2,3,4-tetrahydropyrimidin-




3-yl)phenoxy]-2-pyridyloxy]




acetate (CAS 353292-31-6



A.98
benzobicyclon



A.99
bicyclopyrone



A.100
clomazone



A.101
diflufenican



A.102
flurochloridone



A.103
isoxaflutole



A.104
mesotrione



A.105
norflurazone



A.106
picolinafen



A.107
sulcotrione



A.108
tefuryltrione



A.109
tembotrione



A.110
tolpyralate



A.111
topramezone



A.112
topramezone-sodium



A.113
amitrole



A.114
fluometuron



A.115
fenquinotrione



A.116
glyphosate



A.117
glyphosate-ammonium



A.118
glyphosate-




dimethylammonium



A.119
glyphosate-




isopropylammonium



A.120
glyphosate-trimesium




(sulfosate)



A.121
glyphosate-potassium



A.122
glufosinate



A.123
glufosinate-ammonium



A.124
glufosinate-P



A.125
glufosinate-P-ammonium



A.126
pendimethalin



A.127
trifluralin



A.128
acetochlor



A.129
butachlor



A.130
cafenstrole



A.131
dimethenamid-P



A.132
fentrazamide



A.133
flufenacet



A.134
mefenacet



A.135
metazachlor



A.136
metolachlor



A.137
S-metolachlor



A.138
pretilachlor



A.139
fenoxasulfone



A.140
indaziflam



A.141
isoxaben



A.142
triaziflam



A.143
ipfencarbazone



A.144
pyroxasulfone



A.145
2,4-D



A.146
2,4-D-isobutyl



A.147
2,4-D-dimethylammonium



A.148
2,4-D-N,N,N-




trimethylethanolammonium



A.149
aminopyralid



A.150
aminopyralid-methyl



A.151
aminopyralid-dimethyl-




ammonium



A.152
aminopyralid-tris(2-




hydroxypropyl)ammonium



A.153
clopyralid



A.154
clopyralid-methyl



A.155
clopyralid-olamine



A.156
dicamba



A.157
dicamba-butotyl



A.158
dicamba-diglycolamine



A.159
dicamba-




dimethylammonium



A.160
dicamba-diolamine



A.161
dicamba-




isopropylammonium



A.162
dicamba-potassium



A.163
dicamba-sodium



A.164
dicamba-trolamine



A.165
dicamba-N,N-bis-(3-




aminopropyl)methylamine



A.166
dicamba-




diethylenetriamine



A.167
fluroxypyr



A.168
fluroxypyr-meptyl



A.169
halauxifen



A.170
halauxifen-methyl



A.171
MCPA



A.172
MCPA-2-ethylhexyl



A.173
MCPA-dimethylammonium



A.174
quinclorac



A.175
quinclorac-




dimethylammonium



A.176
quinmerac



A.177
quinmerac-




dimethylammonium



A.178
florpyrauxifen



A.179
florpyrauxifen-benzyl




(CAS 1390661-72-9)



A.180
aminocyclopyrachlor



A.181
aminocyclopyrachlor-




potassium



A.182
aminocyclopyrachlor-




methyl



A.183
diflufenzopyr



A.184
diflufenzopyr-sodium



A.185
dymron



A.186
indanofan



A.187
oxaziclomefone



A.188
II.1



A.189
II.2



A.190
II.3



A.191
II.4



A.192
II.5



A.193
II.6



A.194
II.7



A.195
II.8



A.196
II.9



A.197
4-amino-3-chloro-5-fluoro-




6-(7-fluoro-1H-indol-6-yl)




picolinic acid




(CAS 1629965-65-6)



A.198
flopyrauxifen



A.199
oxotrione




(CAS 1486617-21-3)



A.200
cinmethylin



A.201
2-chloro-3-methylsulfanyl-




N-(1-methyltetrazol-5-yl)-4-




(trifluoromethyl)benzamide




(CAS 1361139-71-0)



A.202
2-(2,4-dichlorophenyl)-




methyl-4,4-dimethyl-3-




isoxazolidone




(CAS 81777-95-9)










Moreover, it may be useful to apply the uracilpyridines of formula (I) in combination with safeners. Safeners are chemical compounds which prevent or reduce damage on useful plants without having a major impact on the herbicidal action of the uracilpyridines of formula (I) towards unwanted plants. They can be applied either before sowings (e.g. on seed treatments, shoots or seedlings) or in the pre-emergence application or post-emergence application of the useful plant. The safeners and the uracilpyridines of formula (I) and optionally the herbicides B can be applied simultaneously or in succession.


In another embodiment of the present invention the compositions according to the present invention comprise at least one uracilpyridine of formula (I) and at least one safener C (component C).


Suitable safeners are e.g. (quinolin-8-oxy)acetic acids, 1-phenyl-5-haloalkyl-1H-1,2,4-triazol-3-carboxylic acids, 1-phenyl-4,5-dihydro-5-alkyl-1H-pyrazol-3,5-dicarboxylic acids, 4,5-dihydro-5,5-diaryl-3-isoxazol carboxylic acids, dichloroacetamides, alpha-oximinophenylacetonitriles, acetophenonoximes, 4,6-dihalo-2-phenylpyrimidines, N[[4-(aminocarbonyl)phenyl]sulfonyl]-2-benzoic amides, 1,8-naphthalic anhydride, 2-halo-4-(haloalkyl)-5-thiazol carboxylic acids, phosphorthiolates and N-alkyl-O-phenylcarbamates and their agriculturally acceptable salts and their agriculturally acceptable derivatives such amides, esters, and thioesters, provided they have an acid group.


Examples of preferred safeners C are benoxacor, cloquintocet, cyometrinil, cyprosulfamide, dichlormid, dicyclonon, dietholate, fenchlorazole, fenclorim, flurazole, fluxofenim, furilazole, isoxadifen, mefenpyr, mephenate, naphthalic anhydride, oxabetrinil, 4-(dichloroacetyl)-1-oxa-4-azaspiro[4.5]decane (M0N4660, CAS 71526-07-3), 2,2,5-trimethyl-3-(dichloroacetyl)-1,3-oxazolidine (R-29148, CAS 52836-31-4), metcamifen and BPCMS (CAS 54091-06-4); especially preferred benoxacor, cloquintocet, cyometrinil, cyprosulfamide, dichlormid, dicyclonon, dietholate, fenchlorazole, fenclorim, flurazole, fluxofenim, furilazole, isoxadifen, mefenpyr, mephenate, naphthalic anhydride, oxabetrinil, 4-(dichloroacetyl)-1-oxa-4-azaspiro[4.5]decane (M0N4660, CAS 71526-07-3), 2,2,5-trimethyl-3-(dichloroacetyl)-1,3-oxazolidine (R-29148, CAS 52836-31-4) and metcamifen.


Particularly preferred safeners C, which, as component C, are constituent of the composition according to the invention are the safeners C as defined above; in particular the safeners C.1 - C.17 listed below in table C:












TABLE C








Safener C









C.1
benoxacor



C.2
cloquintocet



C.3
cloquintocet-mexyl



C.4
cyprosulfamide



C.5
dichlormid



C.6
fenchlorazole



C.7
fenchlorazole-ethyl



C.8
fenclorim



C.9
furilazole



C.10
isoxadifen



C.11
isoxadifen-ethyl



C.12
mefenpyr



C.13
mefenpyr-diethyl



C.14
naphtalic acid anhydride



C.15
4-(dichloroacetyl)-1-oxa-4-azaspiro[4.5]decane




(CAS 71526-07-3)



C.16
2,2,5-trimethyl-3-(dichloroacetyl)-1,3-oxazolidine




(CAS 52836-31-4)



C.17
metcamifen










The active compounds B of groups b1) to b15) and the active compounds C are known herbicides and safeners, see, for example, The Compendium of Pesticide Common Names (http://www.alanwood.net/pesticides/); Farm Chemicals Handbook 2000 volume 86, Meister Publishing Company, 2000; B. Hock, C. Fedtke, R. R. Schmidt, Herbizide [Herbicides], Georg Thieme Verlag, Stuttgart 1995; W. H. Ahrens, Herbicide Handbook, 7th edition, Weed Science Society of America, 1994; and K. K. Hatzios, Herbicide Handbook, Supplement for the 7th edition, Weed Science Society of America, 1998. 2,2,5-Trimethyl-3-(dichloroacetyl)-1,3-oxazolidine [CAS No. 52836-31-4] is also referred to as R-29148. 4-(DichloroacetyI)-1-oxa-4-azaspiro[4.5]decane [CAS No. 71526-07-3] is also referred to as AD-67 and MON 4660.


The assignment of the active compounds to the respective mechanisms of action is based on current knowledge. If several mechanisms of action apply to one active compound, this substance was only assigned to one mechanism of action.


According to a preferred embodiment of the invention, the composition comprises as herbicidal active compound B or component B at least one, preferably exactly one herbicide B.


According to another preferred embodiment of the invention, the composition comprises as herbicidal active compounds B or component B at least two, preferably exactly two herbicides B different from each other.


According to another preferred embodiment of the invention, the composition comprises as herbicidal active compounds B or component B at least three, preferably exactly three herbicides B different from each other.


According to another preferred embodiment of the invention, the composition comprises as herbicidal active compounds B or component B at least four, preferably exactly four herbicides B different from each other.


According to another preferred embodiment of the invention, the composition comprises as safening component C or component C at least one, preferably exactly one safener C.


According to another preferred embodiment of the invention, the composition comprises as component B at least one, preferably exactly one herbicide B, and as component C at least one, preferably exactly one, safener C.


According to another preferred embodiment of the invention, the composition comprises at least two, preferably exactly two, herbicides B different from each other, and as component C at least one, preferably exactly one, safener C.


According to another preferred embodiment of the invention, the composition comprises at least three, preferably exactly three, herbicides B different from each other, and as component C at least one, preferably exactly one, safener C.


According to another preferred embodiment of the invention, the composition comprises as component A at least one, preferably exactly one compound of formula (I), preferably of formula (I.a) or (I.h), and as component B at least one, preferably exactly one, herbicide B.


According to another preferred embodiment of the invention, the composition comprises as component A at least one, preferably exactly one compound of formula (I), preferably of formula (I.a) or (I.h), and at least two, preferably exactly two, herbicides B different from each other.


According to another preferred embodiment of the invention, the composition comprises as component A at least one, preferably exactly one compound of formula (I), preferably of formula (I.a) or (I.h), and at least three, preferably exactly three, herbicides B different from each other.


According to another preferred embodiment of the invention, the composition comprises as component A at least one, preferably exactly one compound of formula (I), preferably of formula (I.a) or (I.h), and at least four, preferably exactly four, herbicides B different from each other.


According to another preferred embodiment of the invention, the composition comprises as component A at least one, preferably exactly one compound of formula (I), preferably of formula (I.a) or (I.h), and as component C at least one, preferably exactly one, safener C.


According to another preferred embodiment of the invention, the composition comprises as component A at least one, preferably exactly one compound of formula (I), preferably of formula (I.a) or (I.h), as component B at least one, preferably exactly one, herbicide B, and as component C at least one, preferably exactly one safener C.


According to another preferred embodiment of the invention, the composition comprises as component A at least one, preferably exactly one compound of formula (I), preferably of formula (I.a) or (I.h), at least two, preferably exactly two herbicides B different from each other, and as component C at least one, preferably exactly one, safener C.


According to another preferred embodiment of the invention, the composition comprises as component A at least one, preferably exactly one compound of formula (I), preferably of formula (I.a) or (I.h), at least three, preferably exactly three herbicides B different from each other, and as component C at least one, preferably exactly one, safener C.


According to another preferred embodiment of the invention, the composition comprises, in addition to an uracilpyridine of formula (I), especially an active compound from the group consisting of (I.a.87), (I.a.109), (I.a.115), (I.a.255), (I.a.277), (I.a.283), (I.a.339), (I.a.361), (I.a.367), (I.h.87), (I.h.109), (I.h.115), (I.h.255), (I.h.277), (I.h.283), (I.h.339), (I.h.361) and (I.h.367),at least one and especially exactly one herbicidally active compound from group b4), in particular selected from the group consisting of acifluorfen, butafencil, carfenetrazone-ethyl, flumioxazin, fomesafen, oxadiargyl, oxyfluorfen, pyraflufen, pyraflufen-ethyl, saflufenacil, sulfentrazone, trifludimoxazin, ethyl [3-[2-chloro-4-fluoro-5-(1-methyl-6-trifluoromethyl-2,4-dioxo-1,2,3,4-tetrahydropyrimidin-3-yl)phenoxy]-2-pyridyloxy]acetate (CAS 353292-31-6).


According to another preferred embodiment of the invention, the composition comprises, in addition to an uracilpyridine of formula (I), especially an active compound from the group consisting of (I.a.87), (I.a.109), (I.a.115), (I.a.255), (I.a.277), (I.a.283), (I.a.339), (I.a.361), (I.a.367), (I.h.87), (I.h.109), (I.h.115), (I.h.255), (I.h.277), (I.h.283), (I.h.339), (I.h.361) and (I.h.367), at least one and especially exactly one herbicidally active compound from group b6), in particular selected from the group consisting of glyphosate, glyphosate-ammonium, glyphosate-dimethylammonium , glyphosate-isopropylammonium and glyphosate-trimesium (sulfosate) and glyphosate-potassium.


According to another preferred embodiment of the invention, the composition comprises, in addition to an uracilpyridine of formula (I), especially an active compound from the group consisting of (I.a.87), (I.a.109), (I.a.115), (I.a.255), (I.a.277), (I.a.283), (I.a.339), (I.a.361), (I.a.367), (I.h.87), (I.h.109), (I.h.115), (I.h.255), (I.h.277), (I.h.283), (I.h.339), (I.h.361) and (I.h.367), at least one and especially exactly one herbicidally active compound from group b10), in particular selected from the group consisting of acetochlor, butachlor, cafenstrole, dimethenamid-P, fentrazamide, flufenacet, mefenacet, metazachlor, metolachlor, S-metolachlor, fenoxasulfone, ipfencarbazone and pyroxasulfone. Likewise, preference is given to compositions comprising in addition to an uracilpyridine of formula (I), especially an active compound from the group consisting of (I.a.87), (I.a.109), (I.a.115), (I.a.255), (I.a.277), (I.a.283), (I.a.339), (I.a.361), (I.a.367), (I.h.87), (I.h.109), (I.h.115), (I.h.255), (I.h.277), (I.h.283), (I.h.339), (I.h.361) and (I.h.367), at least one and especially exactly one herbicidally active compound from group b10), in particular selected from the group consisting of isoxazoline compounds of the formulae II.1, II.2, II.3, II.4, II.5, II.6, II.7, II.8 and II.9 as defined above.


According to another preferred embodiment of the invention, the composition comprises, in addition to an uracilpyridine of formula (I), especially an active compound from the group consisting of (I.a.87), (I.a.109), (I.a.115), (I.a.255), (I.a.277), (I.a.283), (I.a.339), (I.a.361), (I.a.367), (I.h.87), (I.h.109), (I.h.115), (I.h.255), (I.h.277), (I.h.283), (I.h.339), (I.h.361) and (I.h.367), at least one and especially exactly one herbicidally active compound from group b13), in particular selected from the group consisting of 2,4-D, 2,4-D-isobutyl, 2,4-D-dimethylammonium, 2,4-D-N,N,N-trimethylethanolammonium, aminocyclopyrachlor, aminocyclopyrachlor-potassium, aminocyclopyrachlor-methyl, aminopyralid, aminopyralid-methyl, aminopyralid-dimethylammonium, aminopyralid-tris(2-hydroxypropyl)ammonium, clopyralid, clopyralid-methyl, clopyralid-olamine, dicamba, dicamba-butotyl, dicamba-diglycolamine, dicamba-dimethylammonium, dicamba-diolamine, dicamba-isopropylammonium, dicamba-potassium, dicamba-sodium, dicamba-trolamine, dicamba-N,N-bis-(3-aminopropyl)methylamine, dicamba-diethylenetriamine, flopyrauxifen, fluroxypyr, fluroxypyr-meptyl, halauxifen, halauxifen-methyl, MCPA, MCPA-2-ethylhexyl, MCPA-dimethylammonium, quinclorac, quinclorac-dimethylammonium, quinmerac, quinmerac-dimethylammonium, florpyrauxifen, florpyrauxifen-benzyl (CAS 1390661-72-9), and 4-amino-3-chloro-5-fluoro-6-(7-fluoro-1H-indo1-6-yl)picolinic acid.


Here and below, the term “binary compositions” includes compositions comprising one or more, for example 1, 2 or 3, active compounds of the formula (I) and either one or more, for example 1, 2 or 3, herbicides B or one or more safeners C.


Correspondingly, the term “ternary compositions” includes compositions comprising one or more, for example 1, 2 or 3, active compounds of the formula (I), one or more, for example 1, 2 or 3, herbicides B and one or more, for example 1, 2 or 3, safeners C.


In binary compositions comprising at least one compound of the formula (I) as component A and at least one herbicide B, the weight ratio of the active compounds A:B is generally in the range of from 1:1000 to 1000:1, preferably in the range of from 1:500 to 500:1, in particular in the range of from 1:250 to 250:1 and particularly preferably in the range of from 1:125 to 125:1.


In binary compositions comprising at least one compound of the formula (I) as component A and at least one safener C, the weight ratio of the active compounds A:C is generally in the range of from 1:1000 to 1000:1, preferably in the range of from 1:500 to 500:1, in particular in the range of from 1:250 to 250:1 and particularly preferably in the range of from 1:75 to 75:1.


In ternary compositions comprising at least one uracilpyridine of formula (I) as component A, at least one herbicide B and at least one safener C, the relative proportions by weight of the components A:B are generally in the range of from 1:1000 to 1000:1, preferably in the range of from 1:500 to 500:1, in particular in the range of from 1:250 to 250:1 and particularly preferably in the range of from 1:125 to 125:1, the weight ratio of the components A:C is generally in the range of from 1:1000 to 1000:1, preferably in the range of from 1:500 to 500:1, in particular in the range of from 1:250 to 250:1 and particularly preferably in the range of from 1:75 to 75:1, and the weight ratio of the components B:C is generally in the range of from 35 1:1000 to 1000:1, preferably in the range of from 1:500 to 500:1, in particular in the range of from 1:250 to 250:1 and particularly preferably in the range of from 1:75 to 75:1. The weight ratio of components A+B to component C is preferably in the range of from 1:500 to 500:1, in particular in the range of from 1:250 to 250:1 and particularly preferably in the range of from 1:75 to 75:1.


The weight ratios of the individual components in the preferred mixtures mentioned below are within the limits given herein, in particular within the preferred limits.


Particularly preferred are the compositions mentioned below comprising the uracilpyridines of formula (I) as defined and the substance(s) as defined in the respective row of table 1;


especially preferred comprising as only herbicidal active compounds the uracilpyridines of formula (I) as defined and the substance(s) as defined in the respective row of table 1;


most preferably comprising as only active compounds the uracilpyridines of formula (I) as defined and the substance(s) as defined in the respective row of table 1.


Particularly preferred are compositions 1.1 to 1.3653, especially compositions 1.1 to 1.3635, comprising the uracilpyridine (1a.339) and the substance(s) as defined in the respective row of table 1:









TABLE 1







(compositions 1.1 to 1.3635):









comp. no.
herbicide B
safener C












1.1
B.1



1.2
B.2



1.3
B.3



1.4
B.4



1.5
B.5



1.6
B.6



1.7
B.7



1.8
B.8



1.9
B.9



1.10
B.10



1.11
B.11



1.12
B.12



1.13
B.13



1.14
B.14



1.15
B.15



1.16
B.16



1.17
B.17



1.18
B.18



1.19
B.19



1.20
B.20



1.21
B.21



1.22
B.22



1.23
B.23



1.24
B.24



1.25
B.25



1.26
B.26



1.27
B.27



1.28
B.28



1.29
B.29



1.30
B.30



1.31
B.31



1.32
B.32



1.33
B.33



1.34
B.34



1.35
B.35



1.36
B.36



1.37
B.37



1.38
B.38



1.39
B.39



1.40
B.40



1.41
B.41



1.42
B.42



1.43
B.43



1.44
B.44



1.45
B.45



1.46
B.46



1.47
B.47



1.48
B.48



1.49
B.49



1.50
B.50



1.51
B.51



1.52
B.52



1.53
B.53



1.54
B.54



1.55
B.55



1.56
B.56



1.57
B.57



1.58
B.58.



1.59
B.59



1.60
B.60



1.61
B.61



1.62
B.62



1.63
B.63



1.64
B.64



1.65
B.65



1.66
B.66



1.67
B.67



1.68
B.68



1.69
B.69



1.70
B.70



1.71
B.71



1.72
B.72



1.73
B.73



1.74
B.74



1.75
B.75



1.76
B.76



1.77
B.77



1.78
B.78



1.79
B.79



1.80
B.80



1.81
B.81



1.82
B.82



1.83
B.83



1.84
B.84



1.85
B.85



1.86
B.86



1.87
B.87



1.88
B.88



1.89
B.89



1.90
B.90



1.91
B.91



1.92
B.92



1.93
B.93



1.94
B.94



1.95
B.95



1.96
B.96



1.97
B.97



1.98
B.98



1.99
B.99



1.100
B.100



1.101
B.101



1.102
B.102



1.103
B.103



1.104
B.104



1.105
B.105



1.106
B.106



1.107
B.107



1.108
B.108



1.109
B.109



1.110
B.110



1.111
B.111



1.112
B.112



1.113
B.113



1.114
B.114



1.115
B.115



1.116
B.116



1.117
B.117



1.118
B.118



1.119
B.119



1.120
B.120



1.121
B.121



1.122
B.122



1.123
B.123



1.124
B.124



1.125
B.125



1.126
B.126



1.127
B.127



1.128
B.128



1.129
B.129



1.130
B.130



1.131
B.131



1.132
B.132



1.133
B.133



1.134
B.134



1.135
B.135



1.136
B.136



1.137
B.137



1.138
B.138



1.139
B.139



1.140
B.140



1.141
B.141



1.142
B.142



1.143
B.143



1.144
B.144



1.145
B.145



1.146
B.146



1.147
B.147



1.148
B.148



1.149
B.149



1.150
B.150



1.151
B.151



1.152
B.152



1.153
B.153



1.154
B.154



1.155
B.155



1.156
B.156



1.157
B.157



1.158
B.158



1.159
B.159



1.160
B.160



1.161
B.161



1.162
B.162



1.163
B.163



1.164
B.164



1.165
B.165



1.166
B.166



1.167
B.167



1.168
B.168



1.169
B.169



1.170
B.170



1.171
B.171



1.172
B.172



1.173
B.173



1.174
B.174



1.175
B.175



1.176
B.176



1.177
B.177



1.178
B.178



1.179
B.179



1.180
B.180



1.181
B.181



1.182
B.182



1.183
B.183



1.184
B.184



1.185
B.185



1.186
B.186



1.187
B.187



1.188
B.188



1.189
B.189



1.190
B.190



1.191
B.191



1.192
B.192



1.193
B.193



1.194
B.194



1.195
B.195



1.196
B.196



1.197
B.197



1.198
B.198



1.199
B.199



1.200
B.200



1.201
B.201



1.202
B.1
C.1


1.203
B.2
C.1


1.204
B.3
C.1


1.205
B.4
C.1


1.206
B.5
C.1


1.207
B.6
C.1


1.208
B.7
C.1


1.209
B.8
C.1


1.210
B.9
C.1


1.211
B.10
C.1


1.212
B.11
C.1


1.213
B.12
C.1


1.214
B.13
C.1


1.215
B.14
C.1


1.216
B.15
C.1


1.217
B.16
C.1


1.218
B.17
C.1


1.219
B.18
C.1


1.220
B.19
C.1


1.221
B.20
C.1


1.222
B.21
C.1


1.223
B.22
C.1


1.224
B.23
C.1


1.225
B.24
C.1


1.226
B.25
C.1


1.227
B.26
C.1


1.228
B.27
C.1


1.229
B.28
C.1


1.230
B.29
C.1


1.231
B.30
C.1


1.232
B.31
C.1


1.233
B.32
C.1


1.234
B.33
C.1


1.235
B.34
C.1


1.236
B.35
C.1


1.237
B.36
C.1


1.238
B.37
C.1


1.239
B.38
C.1


1.240
B.39
C.1


1.241
B.40
C.1


1.242
B.41
C.1


1.243
B.42
C.1


1.244
B.43
C.1


1.245
B.44
C.1


1.246
B.45
C.1


1.247
B.46
C.1


1.248
B.47
C.1


1.249
B.48
C.1


1.250
B.49
C.1


1.251
B.50
C.1


1.252
B.51
C.1


1.253
B.52
C.1


1.254
B.53
C.1


1.255
B.54
C.1


1.256
B.55
C.1


1.257
B.56
C.1


1.258
B.57
C.1


1.259
B.58.
C.1


1.260
B.59
C.1


1.261
B.60
C.1


1.262
B.61
C.1


1.263
B.62
C.1


1.264
B.63
C.1


1.265
B.64
C.1


1.266
B.65
C.1


1.267
B.66
C.1


1.268
B.67
C.1


1.269
B.68
C.1


1.270
B.69
C.1


1.271
B.70
C.1


1.272
B.71
C.1


1.273
B.72
C.1


1.274
B.73
C.1


1.275
B.74
C.1


1.276
B.75
C.1


1.277
B.76
C.1


1.278
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C.3


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C.3


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C.3


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C.3


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C.3


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C.4


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C.4


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C.4


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C.4


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C.4


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C.4


1.811
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C.4


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C.4


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C.4


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C.4


1.817
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C.4


1.818
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C.4


1.819
B.15
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1.820
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B.201
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1.1810
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B.2
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1.1813
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B.30
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1.1840
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1.1842
B.33
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1.1843
B.34
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1.1844
B.35
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1.1845
B.36
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1.1846
B.37
C.9


1.1847
B.38
C.9


1.1848
B.39
C.9


1.1849
B.40
C.9


1.1850
B.41
C.9


1.1851
B.42
C.9


1.1852
B.43
C.9


1.1853
B.44
C.9


1.1854
B.45
C.9


1.1855
B.46
C.9


1.1856
B.47
C.9


1.1857
B.48
C.9


1.1858
B.49
C.9


1.1859
B.50
C.9


1.1860
B.51
C.9


1.1861
B.52
C.9


1.1862
B.53
C.9


1.1863
B.54
C.9


1.1864
B.55
C.9


1.1865
B.56
C.9


1.1866
B.57
C.9


1.1867
B.58.
C.9


1.1868
B.59
C.9


1.1869
B.60
C.9


1.1870
B.61
C.9


1.1871
B.62
C.9


1.1872
B.63
C.9


1.1873
B.64
C.9


1.1874
B.65
C.9


1.1875
B.66
C.9


1.1876
B.67
C.9


1.1877
B.68
C.9


1.1878
B.69
C.9


1.1879
B.70
C.9


1.1880
B.71
C.9


1.1881
B.72
C.9


1.1882
B.73
C.9


1.1883
B.74
C.9


1.1884
B.75
C.9


1.1885
B.76
C.9


1.1886
B.77
C.9


1.1887
B.78
C.9


1.1888
B.79
C.9


1.1889
B.80
C.9


1.1890
B.81
C.9


1.1891
B.82
C.9


1.1892
B.83
C.9


1.1893
B.84
C.9


1.1894
B.85
C.9


1.1895
B.86
C.9


1.1896
B.87
C.9


1.1897
B.88
C.9


1.1898
B.89
C.9


1.1899
B.90
C.9


1.1900
B.91
C.9


1.1901
B.92
C.9


1.1902
B.93
C.9


1.1903
B.94
C.9


1.1904
B.95
C.9


1.1905
B.96
C.9


1.1906
B.97
C.9


1.1907
B.98
C.9


1.1908
B.99
C.9


1.1909
B.100
C.9


1.1910
B.101
C.9


1.1911
B.102
C.9


1.1912
B.103
C.9


1.1913
B.104
C.9


1.1914
B.105
C.9


1.1915
B.106
C.9


1.1916
B.107
C.9


1.1917
B.108
C.9


1.1918
B.109
C.9


1.1919
B.110
C.9


1.1920
B.111
C.9


1.1921
B.112
C.9


1.1922
B.113
C.9


1.1923
B.114
C.9


1.1924
B.115
C.9


1.1925
B.116
C.9


1.1926
B.117
C.9


1.1927
B.118
C.9


1.1928
B.119
C.9


1.1929
B.120
C.9


1.1930
B.121
C.9


1.1931
B.122
C.9


1.1932
B.123
C.9


1.1933
B.124
C.9


1.1934
B.125
C.9


1.1935
B.126
C.9


1.1936
B.127
C.9


1.1937
B.128
C.9


1.1938
B.129
C.9


1.1939
B.130
C.9


1.1940
B.131
C.9


1.1941
B.132
C.9


1.1942
B.133
C.9


1.1943
B.134
C.9


1.1944
B.135
C.9


1.1945
B.136
C.9


1.1946
B.137
C.9


1.1947
B.138
C.9


1.1948
B.139
C.9


1.1949
B.140
C.9


1.1950
B.141
C.9


1.1951
B.142
C.9


1.1952
B.143
C.9


1.1953
B.144
C.9


1.1954
B.145
C.9


1.1955
B.146
C.9


1.1956
B.147
C.9


1.1957
B.148
C.9


1.1958
B.149
C.9


1.1959
B.150
C.9


1.1960
B.151
C.9


1.1961
B.152
C.9


1.1962
B.153
C.9


1.1963
B.154
C.9


1.1964
B.155
C.9


1.1965
B.156
C.9


1.1966
B.157
C.9


1.1967
B.158
C.9


1.1968
B.159
C.9


1.1969
B.160
C.9


1.1970
B.161
C.9


1.1971
B.162
C.9


1.1972
B.163
C.9


1.1973
B.164
C.9


1.1974
B.165
C.9


1.1975
B.166
C.9


1.1976
B.167
C.9


1.1977
B.168
C.9


1.1978
B.169
C.9


1.1979
B.170
C.9


1.1980
B.171
C.9


1.1981
B.172
C.9


1.1982
B.173
C.9


1.1983
B.174
C.9


1.1984
B.175
C.9


1.1985
B.176
C.9


1.1986
B.177
C.9


1.1987
B.178
C.9


1.1988
B.179
C.9


1.1989
B.180
C.9


1.1990
B.181
C.9


1.1991
B.182
C.9


1.1992
B.183
C.9


1.1993
B.184
C.9


1.1994
B.185
C.9


1.1995
B.186
C.9


1.1996
B.187
C.9


1.1997
B.188
C.9


1.1998
B.189
C.9


1.1999
B.190
C.9


1.2000
B.191
C.9


1.2001
B.192
C.9


1.2002
B.193
C.9


1.2003
B.194
C.9


1.2004
B.195
C.9


1.2005
B.196
C.9


1.2006
B.197
C.9


1.2007
B.198
C.9


1.2008
B.199
C.9


1.2009
B.200
C.9


1.2010
B.201
C.9


1.2011
B.1
C.10


1.2012
B.2
C.10


1.2013
B.3
C.10


1.2014
B.4
C.10


1.2015
B.5
C.10


1.2016
B.6
C.10


1.2017
B.7
C.10


1.2018
B.8
C.10


1.2019
B.9
C.10


1.2020
B.10
C.10


1.2021
B.11
C.10


1.2022
B.12
C.10


1.2023
B.13
C.10


1.2024
B.14
C.10


1.2025
B.15
C.10


1.2026
B.16
C.10


1.2027
B.17
C.10


1.2028
B.18
C.10


1.2029
B.19
C.10


1.2030
B.20
C.10


1.2031
B.21
C.10


1.2032
B.22
C.10


1.2033
B.23
C.10


1.2034
B.24
C.10


1.2035
B.25
C.10


1.2036
B.26
C.10


1.2037
B.27
C.10


1.2038
B.28
C.10


1.2039
B.29
C.10


1.2040
B.30
C.10


1.2041
B.31
C.10


1.2042
B.32
C.10


1.2043
B.33
C.10


1.2044
B.34
C.10


1.2045
B.35
C.10


1.2046
B.36
C.10


1.2047
B.37
C.10


1.2048
B.38
C.10


1.2049
B.39
C.10


1.2050
B.40
C.10


1.2051
B.41
C.10


1.2052
B.42
C.10


1.2053
B.43
C.10


1.2054
B.44
C.10


1.2055
B.45
C.10


1.2056
B.46
C.10


1.2057
B.47
C.10


1.2058
B.48
C.10


1.2059
B.49
C.10


1.2060
B.50
C.10


1.2061
B.51
C.10


1.2062
B.52
C.10


1.2063
B.53
C.10


1.2064
B.54
C.10


1.2065
B.55
C.10


1.2066
B.56
C.10


1.2067
B.57
C.10


1.2068
B.58.
C.10


1.2069
B.59
C.10


1.2070
B.60
C.10


1.2071
B.61
C.10


1.2072
B.62
C.10


1.2073
B.63
C.10


1.2074
B.64
C.10


1.2075
B.65
C.10


1.2076
B.66
C.10


1.2077
B.67
C.10


1.2078
B.68
C.10


1.2079
B.69
C.10


1.2080
B.70
C.10


1.2081
B.71
C.10


1.2082
B.72
C.10


1.2083
B.73
C.10


1.2084
B.74
C.10


1.2085
B.75
C.10


1.2086
B.76
C.10


1.2087
B.77
C.10


1.2088
B.78
C.10


1.2089
B.79
C.10


1.2090
B.80
C.10


1.2091
B.81
C.10


1.2092
B.82
C.10


1.2093
B.83
C.10


1.2094
B.84
C.10


1.2095
B.85
C.10


1.2096
B.86
C.10


1.2097
B.87
C.10


1.2098
B.88
C.10


1.2099
B.89
C.10


1.2100
B.90
C.10


1.2101
B.91
C.10


1.2102
B.92
C.10


1.2103
B.93
C.10


1.2104
B.94
C.10


1.2105
B.95
C.10


1.2106
B.96
C.10


1.2107
B.97
C.10


1.2108
B.98
C.10


1.2109
B.99
C.10


1.2110
B.100
C.10


1.2111
B.101
C.10


1.2112
B.102
C.10


1.2113
B.103
C.10


1.2114
B.104
C.10


1.2115
B.105
C.10


1.2116
B.106
C.10


1.2117
B.107
C.10


1.2118
B.108
C.10


1.2119
B.109
C.10


1.2120
B.110
C.10


1.2121
B.111
C.10


1.2122
B.112
C.10


1.2123
B.113
C.10


1.2124
B.114
C.10


1.2125
B.115
C.10


1.2126
B.116
C.10


1.2127
B.117
C.10


1.2128
B.118
C.10


1.2129
B.119
C.10


1.2130
B.120
C.10


1.2131
B.121
C.10


1.2132
B.122
C.10


1.2133
B.123
C.10


1.2134
B.124
C.10


1.2135
B.125
C.10


1.2136
B.126
C.10


1.2137
B.127
C.10


1.2138
B.128
C.10


1.2139
B.129
C.10


1.2140
B.130
C.10


1.2141
B.131
C.10


1.2142
B.132
C.10


1.2143
B.133
C.10


1.2144
B.134
C.10


1.2145
B.135
C.10


1.2146
B.136
C.10


1.2147
B.137
C.10


1.2148
B.138
C.10


1.2149
B.139
C.10


1.2150
B.140
C.10


1.2151
B.141
C.10


1.2152
B.142
C.10


1.2153
B.143
C.10


1.2154
B.144
C.10


1.2155
B.145
C.10


1.2156
B.146
C.10


1.2157
B.147
C.10


1.2158
B.148
C.10


1.2159
B.149
C.10


1.2160
B.150
C.10


1.2161
B.151
C.10


1.2162
B.152
C.10


1.2163
B.153
C.10


1.2164
B.154
C.10


1.2165
B.155
C.10


1.2166
B.156
C.10


1.2167
B.157
C.10


1.2168
B.158
C.10


1.2169
B.159
C.10


1.2170
B.160
C.10


1.2171
B.161
C.10


1.2172
B.162
C.10


1.2173
B.163
C.10


1.2174
B.164
C.10


1.2175
B.165
C.10


1.2176
B.166
C.10


1.2177
B.167
C.10


1.2178
B.168
C.10


1.2179
B.169
C.10


1.2180
B.170
C.10


1.2181
B.171
C.10


1.2182
B.172
C.10


1.2183
B.173
C.10


1.2184
B.174
C.10


1.2185
B.175
C.10


1.2186
B.176
C.10


1.2187
B.177
C.10


1.2188
B.178
C.10


1.2189
B.179
C.10


1.2190
B.180
C.10


1.2191
B.181
C.10


1.2192
B.182
C.10


1.2193
B.183
C.10


1.2194
B.184
C.10


1.2195
B.185
C.10


1.2196
B.186
C.10


1.2197
B.187
C.10


1.2198
B.188
C.10


1.2199
B.189
C.10


1.2200
B.190
C.10


1.2201
B.191
C.10


1.2202
B.192
C.10


1.2203
B.193
C.10


1.2204
B.194
C.10


1.2205
B.195
C.10


1.2206
B.196
C.10


1.2207
B.197
C.10


1.2208
B.198
C.10


1.2209
B.199
C.10


1.2210
B.200
C.10


1.2211
B.201
C.10


1.2212
B.1
C.11


1.2213
B.2
C.11


1.2214
B.3
C.11


1.2215
B.4
C.11


1.2216
B.5
C.11


1.2217
B.6
C.11


1.2218
B.7
C.11


1.2219
B.8
C.11


1.2220
B.9
C.11


1.2221
B.10
C.11


1.2222
B.11
C.11


1.2223
B.12
C.11


1.2224
B.13
C.11


1.2225
B.14
C.11


1.2226
B.15
C.11


1.2227
B.16
C.11


1.2228
B.17
C.11


1.2229
B.18
C.11


1.2230
B.19
C.11


1.2231
B.20
C.11


1.2232
B.21
C.11


1.2233
B.22
C.11


1.2234
B.23
C.11


1.2235
B.24
C.11


1.2236
B.25
C.11


1.2237
B.26
C.11


1.2238
B.27
C.11


1.2239
B.28
C.11


1.2240
B.29
C.11


1.2241
B.30
C.11


1.2242
B.31
C.11


1.2243
B.32
C.11


1.2244
B.33
C.11


1.2245
B.34
C.11


1.2246
B.35
C.11


1.2247
B.36
C.11


1.2248
B.37
C.11


1.2249
B.38
C.11


1.2250
B.39
C.11


1.2251
B.40
C.11


1.2252
B.41
C.11


1.2253
B.42
C.11


1.2254
B.43
C.11


1.2255
B.44
C.11


1.2256
B.45
C.11


1.2257
B.46
C.11


1.2258
B.47
C.11


1.2259
B.48
C.11


1.2260
B.49
C.11


1.2261
B.50
C.11


1.2262
B.51
C.11


1.2263
B.52
C.11


1.2264
B.53
C.11


1.2265
B.54
C.11


1.2266
B.55
C.11


1.2267
B.56
C.11


1.2268
B.57
C.11


1.2269
B.58.
C.11


1.2270
B.59
C.11


1.2271
B.60
C.11


1.2272
B.61
C.11


1.2273
B.62
C.11


1.2274
B.63
C.11


1.2275
B.64
C.11


1.2276
B.65
C.11


1.2277
B.66
C.11


1.2278
B.67
C.11


1.2279
B.68
C.11


1.2280
B.69
C.11


1.2281
B.70
C.11


1.2282
B.71
C.11


1.2283
B.72
C.11


1.2284
B.73
C.11


1.2285
B.74
C.11


1.2286
B.75
C.11


1.2287
B.76
C.11


1.2288
B.77
C.11


1.2289
B.78
C.11


1.2290
B.79
C.11


1.2291
B.80
C.11


1.2292
B.81
C.11


1.2293
B.82
C.11


1.2294
B.83
C.11


1.2295
B.84
C.11


1.2296
B.85
C.11


1.2297
B.86
C.11


1.2298
B.87
C.11


1.2299
B.88
C.11


1.2300
B.89
C.11


1.2301
B.90
C.11


1.2302
B.91
C.11


1.2303
B.92
C.11


1.2304
B.93
C.11


1.2305
B.94
C.11


1.2306
B.95
C.11


1.2307
B.96
C.11


1.2308
B.97
C.11


1.2309
B.98
C.11


1.2310
B.99
C.11


1.2311
B.100
C.11


1.2312
B.101
C.11


1.2313
B.102
C.11


1.2314
B.103
C.11


1.2315
B.104
C.11


1.2316
B.105
C.11


1.2317
B.106
C.11


1.2318
B.107
C.11


1.2319
B.108
C.11


1.2320
B.109
C.11


1.2321
B.110
C.11


1.2322
B.111
C.11


1.2323
B.112
C.11


1.2324
B.113
C.11


1.2325
B.114
C.11


1.2326
B.115
C.11


1.2327
B.116
C.11


1.2328
B.117
C.11


1.2329
B.118
C.11


1.2330
B.119
C.11


1.2331
B.120
C.11


1.2332
B.121
C.11


1.2333
B.122
C.11


1.2334
B.123
C.11


1.2335
B.124
C.11


1.2336
B.125
C.11


1.2337
B.126
C.11


1.2338
B.127
C.11


1.2339
B.128
C.11


1.2340
B.129
C.11


1.2341
B.130
C.11


1.2342
B.131
C.11


1.2343
B.132
C.11


1.2344
B.133
C.11


1.2345
B.134
C.11


1.2346
B.135
C.11


1.2347
B.136
C.11


1.2348
B.137
C.11


1.2349
B.138
C.11


1.2350
B.139
C.11


1.2351
B.140
C.11


1.2352
B.141
C.11


1.2353
B.142
C.11


1.2354
B.143
C.11


1.2355
B.144
C.11


1.2356
B.145
C.11


1.2357
B.146
C.11


1.2358
B.147
C.11


1.2359
B.148
C.11


1.2360
B.149
C.11


1.2361
B.150
C.11


1.2362
B.151
C.11


1.2363
B.152
C.11


1.2364
B.153
C.11


1.2365
B.154
C.11


1.2366
B.155
C.11


1.2367
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1.2516
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1.2518
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1.2519
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1.2520
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1.2521
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1.2522
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B.111
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1.2527
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B.126
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1.2540
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B.129
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1.2542
B.130
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1.2543
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1.2544
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1.2545
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1.2546
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1.2549
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1.2550
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1.2551
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1.2552
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1.2553
B.141
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1.2554
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1.2555
B.143
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1.2556
B.144
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1.2557
B.145
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1.2558
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B.147
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1.2560
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1.2562
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1.2563
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1.2564
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1.2565
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1.2566
B.154
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1.2567
B.155
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1.2568
B.156
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1.2569
B.157
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B.158
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1.2571
B.159
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1.2572
B.160
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1.2573
B.161
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1.2574
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1.2575
B.163
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B.164
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B.165
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1.2578
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1.2579
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1.2580
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1.2581
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1.2582
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1.2583
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1.2584
B.172
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1.2585
B.173
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1.2586
B.174
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1.2587
B.175
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1.2588
B.176
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1.2589
B.177
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1.2590
B.178
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1.2591
B.179
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1.2592
B.180
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1.2593
B.181
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1.2594
B.182
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1.2595
B.183
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1.2596
B.184
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1.2597
B.185
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1.2598
B.186
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1.2599
B.187
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1.2600
B.188
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1.2601
B.189
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1.2602
B.190
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1.2603
B.191
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1.2604
B.192
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1.2605
B.193
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1.2606
B.194
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1.2607
B.195
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1.2608
B.196
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1.2609
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1.2610
B.198
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1.2611
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1.2612
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1.2613
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1.2636
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1.2667
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1.2676
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1.2678
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1.2679
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1.2680
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1.2690
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1.2691
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1.2701
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1.2702
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1.2703
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1.2704
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1.2705
B.92
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1.2706
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1.2707
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1.2714
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1.2715
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1.2716
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1.2717
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1.2718
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1.2719
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1.2720
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1.2721
B.108
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1.2722
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1.2723
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1.2724
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1.2725
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1.2726
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1.2727
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1.2728
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1.2729
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1.2730
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1.2731
B.118
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1.2732
B.119
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1.2733
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1.2734
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1.2735
B.122
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1.2736
B.123
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1.2737
B.124
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1.2738
B.125
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1.2739
B.126
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1.2740
B.127
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1.2741
B.128
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1.2742
B.129
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1.2743
B.130
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1.2744
B.131
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1.2745
B.132
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1.2746
B.133
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1.2747
B.134
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1.2748
B.135
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1.2749
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1.2750
B.137
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1.2751
B.138
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1.2752
B.139
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1.2753
B.140
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1.2754
B.141
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1.2755
B.142
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1.2756
B.143
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1.2757
B.144
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1.2758
B.145
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1.2759
B.146
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1.2760
B.147
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1.2761
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1.2762
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1.2763
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1.2764
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1.2765
B.152
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1.2766
B.153
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1.2767
B.154
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1.2768
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1.2769
B.156
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1.2770
B.157
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1.2771
B.158
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1.2772
B.159
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1.2773
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1.2774
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1.2775
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1.2776
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1.2777
B.164
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1.2778
B.165
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1.2779
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B.167
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1.2781
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1.2782
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1.2783
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1.2784
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B.172
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1.2787
B.174
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1.2788
B.175
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1.2789
B.176
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1.2790
B.177
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1.2791
B.178
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1.2792
B.179
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1.2793
B.180
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1.2794
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1.2795
B.182
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1.2796
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1.2797
B.184
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1.2798
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1.2799
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1.2800
B.187
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1.2801
B.188
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1.2802
B.189
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1.2803
B.190
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1.2804
B.191
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1.2805
B.192
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1.2806
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1.2807
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1.2808
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C.16


1.3389
B.173
C.16


1.3390
B.174
C.16


1.3391
B.175
C.16


1.3392
B.176
C.16


1.3393
B.177
C.16


1.3394
B.178
C.16


1.3395
B.179
C.16


1.3396
B.180
C.16


1.3397
B.181
C.16


1.3398
B.182
C.16


1.3399
B.183
C.16


1.3400
B.184
C.16


1.3401
B.185
C.16


1.3402
B.186
C.16


1.3403
B.187
C.16


1.3404
B.188
C.16


1.3405
B.189
C.16


1.3406
B.190
C.16


1.3407
B.191
C.16


1.3408
B.192
C.16


1.3409
B.193
C.16


1.3410
B.194
C.16


1.3411
B.195
C.16


1.3412
B.196
C.16


1.3413
B.197
C.16


1.3414
B.198
C.16


1.3415
B.199
C.16


1.3416
B.200
C.16


1.3417
B.201
C.16


1.3418
B.1
C.17


1.3419
B.2
C.17


1.3420
B.3
C.17


1.3421
B.4
C.17


1.3422
B.5
C.17


1.3423
B.6
C.17


1.3424
B.7
C.17


1.3425
B.8
C.17


1.3426
B.9
C.17


1.3427
B.10
C.17


1.3428
B.11
C.17


1.3429
B.12
C.17


1.3430
B.13
C.17


1.3431
B.14
C.17


1.3432
B.15
C.17


1.3433
B.16
C.17


1.3434
B.17
C.17


1.3435
B.18
C.17


1.3436
B.19
C.17


1.3437
B.20
C.17


1.3438
B.21
C.17


1.3439
B.22
C.17


1.3440
B.23
C.17


1.3441
B.24
C.17


1.3442
B.25
C.17


1.3443
B.26
C.17


1.3444
B.27
C.17


1.3445
B.28
C.17


1.3446
B.29
C.17


1.3447
B.30
C.17


1.3448
B.31
C.17


1.3449
B.32
C.17


1.3450
B.33
C.17


1.3451
B.34
C.17


1.3452
B.35
C.17


1.3453
B.36
C.17


1.3454
B.37
C.17


1.3455
B.38
C.17


1.3456
B.39
C.17


1.3457
B.40
C.17


1.3458
B.41
C.17


1.3459
B.42
C.17


1.3460
B.43
C.17


1.3461
B.44
C.17


1.3462
B.45
C.17


1.3463
B.46
C.17


1.3464
B.47
C.17


1.3465
B.48
C.17


1.3466
B.49
C.17


1.3467
B.50
C.17


1.3468
B.51
C.17


1.3469
B.52
C.17


1.3470
B.53
C.17


1.3471
B.54
C.17


1.3472
B.55
C.17


1.3473
B.56
C.17


1.3474
B.57
C.17


1.3475
B.58.
C.17


1.3476
B.59
C.17


1.3477
B.60
C.17


1.3478
B.61
C.17


1.3479
B.62
C.17


1.3480
B.63
C.17


1.3481
B.64
C.17


1.3482
B.65
C.17


1.3483
B.66
C.17


1.3484
B.67
C.17


1.3485
B.68
C.17


1.3486
B.69
C.17


1.3487
B.70
C.17


1.3488
B.71
C.17


1.3489
B.72
C.17


1.3490
B.73
C.17


1.3491
B.74
C.17


1.3492
B.75
C.17


1.3493
B.76
C.17


1.3494
B.77
C.17


1.3495
B.78
C.17


1.3496
B.79
C.17


1.3497
B.80
C.17


1.3498
B.81
C.17


1.3499
B.82
C.17


1.3500
B.83
C.17


1.3501
B.84
C.17


1.3502
B.85
C.17


1.3503
B.86
C.17


1.3504
B.87
C.17


1.3505
B.88
C.17


1.3506
B.89
C.17


1.3507
B.90
C.17


1.3508
B.91
C.17


1.3509
B.92
C.17


1.3510
B.93
C.17


1.3511
B.94
C.17


1.3512
B.95
C.17


1.3513
B.96
C.17


1.3514
B.97
C.17


1.3515
B.98
C.17


1.3516
B.99
C.17


1.3517
B.100
C.17


1.3518
B.101
C.17


1.3519
B.102
C.17


1.3520
B.103
C.17


1.3521
B.104
C.17


1.3522
B.105
C.17


1.3523
B.106
C.17


1.3524
B.107
C.17


1.3525
B.108
C.17


1.3526
B.109
C.17


1.3527
B.110
C.17


1.3528
B.111
C.17


1.3529
B.112
C.17


1.3530
B.113
C.17


1.3531
B.114
C.17


1.3532
B.115
C.17


1.3533
B.116
C.17


1.3534
B.117
C.17


1.3535
B.118
C.17


1.3536
B.119
C.17


1.3537
B.120
C.17


1.3538
B.121
C.17


1.3539
B.122
C.17


1.3540
B.123
C.17


1.3541
B.124
C.17


1.3542
B.125
C.17


1.3543
B.126
C.17


1.3544
B.127
C.17


1.3545
B.128
C.17


1.3546
B.129
C.17


1.3547
B.130
C.17


1.3548
B.131
C.17


1.3549
B.132
C.17


1.3550
B.133
C.17


1.3551
B.134
C.17


1.3552
B.135
C.17


1.3553
B.136
C.17


1.3554
B.137
C.17


1.3555
B.138
C.17


1.3556
B.139
C.17


1.3557
B.140
C.17


1.3558
B.141
C.17


1.3559
B.142
C.17


1.3560
B.143
C.17


1.3561
B.144
C.17


1.3562
B.145
C.17


1.3563
B.146
C.17


1.3564
B.147
C.17


1.3565
B.148
C.17


1.3566
B.149
C.17


1.3567
B.150
C.17


1.3568
B.151
C.17


1.3569
B.152
C.17


1.3570
B.153
C.17


1.3571
B.154
C.17


1.3572
B.155
C.17


1.3573
B.156
C.17


1.3574
B.157
C.17


1.3575
B.158
C.17


1.3576
B.159
C.17


1.3577
B.160
C.17


1.3578
B.161
C.17


1.3579
B.162
C.17


1.3580
B.163
C.17


1.3581
B.164
C.17


1.3582
B.165
C.17


1.3583
B.166
C.17


1.3584
B.167
C.17


1.3585
B.168
C.17


1.3586
B.169
C.17


1.3587
B.170
C.17


1.3588
B.171
C.17


1.3589
B.172
C.17


1.3590
B.173
C.17


1.3591
B.174
C.17


1.3592
B.175
C.17


1.3593
B.176
C.17


1.3594
B.177
C.17


1.3595
B.178
C.17


1.3596
B.179
C.17


1.3597
B.180
C.17


1.3598
B.181
C.17


1.3599
B.182
C.17


1.3600
B.183
C.17


1.3601
B.184
C.17


1.3602
B.185
C.17


1.3603
B.186
C.17


1.3604
B.187
C.17


1.3605
B.188
C.17


1.3606
B.189
C.17


1.3607
B.190
C.17


1.3608
B.191
C.17


1.3609
B.192
C.17


1.3610
B.193
C.17


1.3611
B.194
C.17


1.3612
B.195
C.17


1.3613
B.196
C.17


1.3614
B.197
C.17


1.3615
B.198
C.17


1.3616
B.199
C.17


1.3617
B.200
C.17


1.3618
B.201
C.17


1.3619

C.1


1.3620

C.2


1.3621

C.3


1.3622

C.4


1.3623

C.5


1.3624

C.6


1.3625

C.7


1.3626

C.8


1.3627

C.9


1.3628

C.10


1.3629

C.11


1.3630

C.12


1.3631

C.13


1.3632

C.14


1.3633

C.15


1.3634

C.16


1.3635

C.17


1.3636
B.202



1.3637
B.202
C.1


1.3638
B.202
C.2


1.3639
B.202
C.3


1.3640
B.202
C.4


1.3641
B.202
C.5


1.3642
B.202
C.6


1.3643
B.202
C.7


1.3644
B.202
C.8


1.3645
B.202
C.9


1.3646
B.202
C.10


1.3647
B.202
C.11


1.3648
B.202
C.12


1.3649
B.202
C.13


1.3650
B.202
C.14


1.3651
B.202
C.15


1.3652
B.202
C.16


1.3653
B.202
C.17









The specific number for each single composition is deductible as follows: Composition 1.200 for example comprises the uracilpyridine I.a.339 and cinmethylin (B.200) (see table 1, entry 1.200; as well as table B, entry B.200).


Composition 2.200 for example comprises the uracilpyridine I.a.109 (see the definition for compositions 2.1 to 2.3653, preferably 2.1 to 2.3635, below) and cinmethylin (B.200) (see table 1, entry 1.200; as well as table B, entry B.200).


Composition 7.200 for example comprises imazapyr (B.35) (see the definition for compositions 7.1 to 7.3653, preferably 7.1 to 7.3635, below), the uracilpyridine I.a.339 and cinmethylin (B.200) (see table 1, entry 1.200; as well as table B, entry B.200).


Also especially preferred are compositions 2.1 to 2.3653, more preferred 2.1. to 2.3635, which differ from the corresponding compositions 1.1 to 1.3653, more preferred 1.1 to 1.3635, only in that they comprise as the active compound A the uracilpyridine of formula (I.a.109).


Also especially preferred are compositions 3.1 to 3.3653, more preferred 3.1. to 3.3635, which differ from the corresponding compositions 1.1 to 1.3653, more preferred 1.1 to 1.3635, only in that they additionally comprise B.2 as further herbicide B.


Also especially preferred are compositions 4.1 to 4.3653, more preferred 4.1. to 4.3635, which differ from the corresponding compositions 1.1 to 1.3653, more preferred 1.1 to 1.3635, only in that they additionally comprise B.8 as further herbicide B.


Also especially preferred are compositions 5.1 to 5.3653, more preferred 5.1. to 5.3635, which differ from the corresponding compositions 1.1 to 1.3653, more preferred 1.1 to 1.3635, only in that they additionally comprise B.as further herbicide B.


Also especially preferred are compositions 6.1 to 6.3653, more preferred 6.1. to 6.3635, which differ from the corresponding compositions 1.1 to 1.3653, more preferred 1.1 to 1.3635, only in that they additionally comprise B.32 as further herbicide B.


Also especially preferred are compositions 7.1 to 7.3653, more preferred 7.1. to 7.3635, which differ from the corresponding compositions 1.1 to 1.3653, more preferred 1.1 to 1.3635, only in that they additionally comprise B.as further herbicide B.


Also especially preferred are compositions 8.1 to 8.3653, more preferred 8.1. to 8.3635, which differ from the corresponding compositions 1.1 to 1.3653, more preferred 1.1 to 1.3635, only in that they additionally comprise B.38 as further herbicide B.


Also especially preferred are compositions 9.1 to 9.3653, more preferred 9.1. to 9.3635, which differ from the corresponding compositions 1.1 to 1.3653, more preferred 1.1 to 1.3635, only in that they additionally comprise B.as further herbicide B.


Also especially preferred are compositions 10.1 to 10.3653, more preferred 10.1. to 10.3635, which differ from the corresponding compositions 1.1 to 1.3653, more preferred 1.1 to 1.3635, only in that they additionally comprise B.51 as further herbicide B.


Also especially preferred are compositions 11.1 to 11.3653, more preferred 11.1. to 11.3635, which differ from the corresponding compositions 1.1 to 1.3653, more preferred 1.1 to 1.3635, only in that they additionally comprise B.55 as further herbicide B.


Also especially preferred are compositions 12.1 to 12.3653, more preferred 12.1. to 12.3635, which differ from the corresponding compositions 1.1 to 1.3653, more preferred 1.1 to 1.3635, only in that they additionally comprise B.56 as further herbicide B.


Also especially preferred are compositions 13.1 to 13.3653, more preferred 13.1. to 13.3635, which differ from the corresponding compositions 1.1 to 1.3653, more preferred 1.1 to 1.3635, only in that they additionally comprise B.64 as further herbicide B.


Also especially preferred are compositions 14.1 to 14.3653, more preferred 14.1. to 14.3635, which differ from the corresponding compositions 1.1 to 1.3653, more preferred 1.1 to 1.3635, only in that they additionally comprise B.66 as further herbicide B.


Also especially preferred are compositions 15.1 to 15.3653, more preferred 15.1. to 15.3635, which differ from the corresponding compositions 1.1 to 1.3653, more preferred 1.1 to 1.3635, only in that they additionally comprise B.67 as further herbicide B.


Also especially preferred are compositions 16.1 to 16.3653, more preferred 16.1. to 16.3635, which differ from the corresponding compositions 1.1 to 1.3653, more preferred 1.1 to 1.3635, only in that they additionally comprise B.68 as further herbicide B.


Also especially preferred are compositions 17.1 to 17.3653, more preferred 17.1. to 17.3635, which differ from the corresponding compositions 1.1 to 1.3653, more preferred 1.1 to 1.3635, only in that they additionally comprise B.69 as further herbicide B.


Also especially preferred are compositions 18.1 to 18.3653, more preferred 18.1. to 18.3635, which differ from the corresponding compositions 1.1 to 1.3653, more preferred 1.1 to 1.3635, only in that they additionally comprise B.73 as further herbicide B.


Also especially preferred are compositions 19.1 to 19.3653, more preferred 19.1. to 19.3635, which differ from the corresponding compositions 1.1 to 1.3653, more preferred 1.1 to 1.3635, only in that they additionally comprise B.76 as further herbicide B.


Also especially preferred are compositions 20.1 to 20.3653, more preferred 20.1. to 20.3635, which differ from the corresponding compositions 1.1 to 1.3653, more preferred 1.1 to 1.3635, only in that they additionally comprise B.81 as further herbicide B.


Also especially preferred are compositions 21.1 to 21.3653, more preferred 21.1. to 21.3635, which differ from the corresponding compositions 1.1 to 1.3653, more preferred 1.1 to 1.3635, only in that they additionally comprise B.82 as further herbicide B.


Also especially preferred are compositions 22.1 to 22.3653, more preferred 22.1. to 22.3635, which differ from the corresponding compositions 1.1 to 1.3653, more preferred 1.1 to 1.3635, only in that they additionally comprise B.85 as further herbicide B.


Also especially preferred are compositions 23.1 to 23.3653, more preferred 23.1. to 23.3635, which differ from the corresponding compositions 1.1 to 1.3653, more preferred 1.1 to 1.3635, only in that they additionally comprise B.88 as further herbicide B.


Also especially preferred are compositions 24.1 to 24.3653, more preferred 24.1. to 24.3635, which differ from the corresponding compositions 1.1 to 1.3653, more preferred 1.1 to 1.3635, only in that they additionally comprise B.89 as further herbicide B.


Also especially preferred are compositions 25.1 to 25.3653, more preferred 25.1. to 25.3635, which differ from the corresponding compositions 1.1 to 1.3653, more preferred 1.1 to 1.3635, only in that they additionally comprise B.94 as further herbicide B.


Also especially preferred are compositions 26.1 to 26.3653, more preferred 26.1. to 26.3635, which differ from the corresponding compositions 1.1 to 1.3653, more preferred 1.1 to 1.3635, only in that they additionally comprise B.95 as further herbicide B.


Also especially preferred are compositions 27.1 to 27.3653, more preferred 27.1. to 27.3635, which differ from the corresponding compositions 1.1 to 1.3653, more preferred 1.1 to 1.3635, only in that they additionally comprise B.98 as further herbicide B.


Also especially preferred are compositions 28.1 to 28.3653, more preferred 28.1. to 28.3635, which differ from the corresponding compositions 1.1 to 1.3653, more preferred 1.1 to 1.3635, only in that they additionally comprise B.100 as further herbicide B.


Also especially preferred are compositions 29.1 to 29.3653, more preferred 29.1. to 29.3635, which differ from the corresponding compositions 1.1 to 1.3653, more preferred 1.1 to 1.3635, only in that they additionally comprise B.103 as further herbicide B.


Also especially preferred are compositions 30.1 to 30.3653, more preferred 30.1. to 30.3635, which differ from the corresponding compositions 1.1 to 1.3653, more preferred 1.1 to 1.3635, only in that they additionally comprise B.103 and B.67 as further herbicides B.


Also especially preferred are compositions 31.1 to 31.3653, more preferred 31.1. to 31.3635, which differ from the corresponding compositions 1.1 to 1.3653, more preferred 1.1 to 1.3635, only in that they additionally comprise B.103 and B.76 as further herbicides B.


Also especially preferred are compositions 32.1 to 32.3653, more preferred 32.1. to 32.3635, which differ from the corresponding compositions 1.1 to 1.3653, more preferred 1.1 to 1.3635, only in that they additionally comprise B.103 and B.82 as further herbicides B.


Also especially preferred are compositions 33.1 to 33.3653, more preferred 33.1. to 33.3635, which differ from the corresponding compositions 1.1 to 1.3653, more preferred 1.1 to 1.3635, only in that they additionally comprise B.104 as further herbicide B.


Also especially preferred are compositions 34.1 to 34.3653, more preferred 34.1. to 34.3635, which differ from the corresponding compositions 1.1 to 1.3653, more preferred 1.1 to 1.3635, only in that they additionally comprise B.104 and B.67 as further herbicides B.


Also especially preferred are compositions 35.1 to 35.3653, more preferred 35.1. to 35.3635, which differ from the corresponding compositions 1.1 to 1.3653, more preferred 1.1 to 1.3635, only in that they additionally comprise B.104 and B.76 as further herbicides B.


Also especially preferred are compositions 36.1 to 36.3653, more preferred 36.1. to 36.3635, which differ from the corresponding compositions 1.1 to 1.3653, more preferred 1.1 to 1.3635, only in that they additionally comprise B.104 and B.82 as further herbicides B.


Also especially preferred are compositions 37.1 to 37.3653, more preferred 37.1. to 37.3635, which differ from the corresponding compositions 1.1 to 1.3653, more preferred 1.1 to 1.3635, only in that they additionally comprise B.106 as further herbicide B.


Also especially preferred are compositions 38.1 to 38.3653, more preferred 38.1. to 38.3635, which differ from the corresponding compositions 1.1 to 1.3653, more preferred 1.1 to 1.3635, only in that they additionally comprise B.107 as further herbicide B.


Also especially preferred are compositions 39.1 to 39.3653, more preferred 39.1. to 39.3635, which differ from the corresponding compositions 1.1 to 1.3653, more preferred 1.1 to 1.3635, only in that they additionally comprise B. 107 and B.67 as further herbicides B.


Also especially preferred are compositions 40.1 to 40.3653, more preferred 40.1. to 40.3635, which differ from the corresponding compositions 1.1 to 1.3653, more preferred 1.1 to 1.3635, only in that they additionally comprise B. 107 and B.76 as further herbicides B.


Also especially preferred are compositions 41.1 to 41.3653, more preferred 41.1. to 41.3635, which differ from the corresponding compositions 1.1 to 1.3653, more preferred 1.1 to 1.3635, only in that they additionally comprise B. 107 and B.82 as further herbicides B.


Also especially preferred are compositions 42.1 to 42.3653, more preferred 42.1. to 42.3635, which differ from the corresponding compositions 1.1 to 1.3653, more preferred 1.1 to 1.3635, only in that they additionally comprise B.109 as further herbicide B.


Also especially preferred are compositions 43.1 to 43.3653, more preferred 43.1. to 43.3635, which differ from the corresponding compositions 1.1 to 1.3653, more preferred 1.1 to 1.3635, only in that they additionally comprise B.111 as further herbicide B.


Also especially preferred are compositions 44.1 to 44.3653, more preferred 44.1. to 44.3635, which differ from the corresponding compositions 1.1 to 1.3653, more preferred 1.1 to 1.3635, only in that they additionally comprise B.111 and B.67 as further herbicides B.


Also especially preferred are compositions 45.1 to 45.3653, more preferred 45.1. to 45.3635, which differ from the corresponding compositions 1.1 to 1.3653, more preferred 1.1 to 1.3635, only in that they additionally comprise B.111 and B.76 as further herbicides B.


Also especially preferred are compositions 46.1 to 46.3653, more preferred 46.1. to 46.3635, which differ from the corresponding compositions 1.1 to 1.3653, more preferred 1.1 to 1.3635, only in that they additionally comprise B.111 and B.82 as further herbicides B.


Also especially preferred are compositions 47.1 to 47.3653, more preferred 47.1. to 47.3635, which differ from the corresponding compositions 1.1 to 1.3653, more preferred 1.1 to 1.3635, only in that they additionally comprise B. 116 as further herbicide B.


Also especially preferred are compositions 48.1 to 48.3653, more preferred 48.1. to 48.3635, which differ from the corresponding compositions 1.1 to 1.3653, more preferred 1.1 to 1.3635, only in that they additionally comprise B.116 and B.67 as further herbicides B.


Also especially preferred are compositions 49.1 to 49.3653, more preferred 49.1. to 49.3635, which differ from the corresponding compositions 1.1 to 1.3653, more preferred 1.1 to 1.3635, only in that they additionally comprise B.116 and B.94 as further herbicides B.


Also especially preferred are compositions 50.1 to 50.3653, more preferred 50.1. to 50.3635, which differ from the corresponding compositions 1.1 to 1.3653, more preferred 1.1 to 1.3635, only in that they additionally comprise B.116 and B.103 as further herbicides B.


Also especially preferred are compositions 51.1 to 51.3653, more preferred 51.1. to 51.3635, which differ from the corresponding compositions 1.1 to 1.3653, more preferred 1.1 to 1.3635, only in that they additionally comprise B.116 and B.128 as further herbicides B.


Also especially preferred are compositions 52.1 to 52.3653, more preferred 52.1. to 52.3635, which differ from the corresponding compositions 1.1 to 1.3653, more preferred 1.1 to 1.3635, only in that they additionally comprise B.116 and B.104 as further herbicides B.


Also especially preferred are compositions 53.1 to 53.3653, more preferred 53.1. to 53.3635, which differ from the corresponding compositions 1.1 to 1.3653, more preferred 1.1 to 1.3635, only in that they additionally comprise B.116 and B.107 as further herbicides B.


Also especially preferred are compositions 54.1 to 54.3653, more preferred 54.1. to 54.3635, which differ from the corresponding compositions 1.1 to 1.3653, more preferred 1.1 to 1.3635, only in that they additionally comprise B.116 and B.111 as further herbicides B.


Also especially preferred are compositions 55.1 to 55.3653, more preferred 55.1. to 55.3635, which differ from the corresponding compositions 1.1 to 1.3653, more preferred 1.1 to 1.3635, only in that they additionally comprise B.122 as further herbicide B.


Also especially preferred are compositions 56.1 to 56.3653, more preferred 56.1. to 56.3635, which differ from the corresponding compositions 1.1 to 1.3653, more preferred 1.1 to 1.3635, only in that they additionally comprise B.126 as further herbicide B.


Also especially preferred are compositions 57.1 to 57.3653, more preferred 57.1. to 57.3635, which differ from the corresponding compositions 1.1 to 1.3653, more preferred 1.1 to 1.3635, only in that they additionally comprise B.128 as further herbicide B.


Also especially preferred are compositions 58.1 to 58.3653, more preferred 58.1. to 58.3635, which differ from the corresponding compositions 1.1 to 1.3653, more preferred 1.1 to 1.3635, only in that they additionally comprise B.131 as further herbicide B.


Also especially preferred are compositions 59.1 to 59.3653, more preferred 59.1. to 59.3635, which differ from the corresponding compositions 1.1 to 1.3653, more preferred 1.1 to 1.3635, only in that they additionally comprise B.132 as further herbicide B.


Also especially preferred are compositions 60.1 to 60.3653, more preferred 60.1. to 60.3635, which differ from the corresponding compositions 1.1 to 1.3653, more preferred 1.1 to 1.3635, only in that they additionally comprise B.133 as further herbicide B.


Also especially preferred are compositions 61.1 to 61.3653, more preferred 61.1. to 61.3635, which differ from the corresponding compositions 1.1 to 1.3653, more preferred 1.1 to 1.3635, only in that they additionally comprise B.135 as further herbicide B.


Also especially preferred are compositions 62.1 to 62.3653, more preferred 62.1. to 62.3635, which differ from the corresponding compositions 1.1 to 1.3653, more preferred 1.1 to 1.3635, only in that they additionally comprise B.137 as further herbicide B.


Also especially preferred are compositions 63.1 to 63.3653, more preferred 63.1. to 63.3635, which differ from the corresponding compositions 1.1 to 1.3653, more preferred 11.1 to 1.3635, only in that they additionally comprise B.138 as further herbicide B.


Also especially preferred are compositions 64.1 to 64.3653, more preferred 64.1. to 64.3635, which differ from the corresponding compositions 1.1 to 1.3653, more preferred 1.1 to 1.3635, only in that they additionally comprise B.140 as further herbicide B.


Also especially preferred are compositions 65.1 to 65.3653, more preferred 65.1. to 65.3635, which differ from the corresponding compositions 1.1 to 1.3653, more preferred 1.1 to 1.3635, only in that they additionally comprise B.145 as further herbicide B.


Also especially preferred are compositions 66.1 to 66.3653, more preferred 66.1. to 66.3635, which differ from the corresponding compositions 1.1 to 1.3653, more preferred 1.1 to 1.3635, only in that they additionally comprise B.153 as further herbicide B.


Also especially preferred are compositions 67.1 to 67.3653, more preferred 67.1. to 67.3635, which differ from the corresponding compositions 1.1 to 1.3653, more preferred 1.1 to 1.3635, only in that they additionally comprise B.156 as further herbicide B.


Also especially preferred are compositions 68.1 to 68.3653, more preferred 68.1. to 68.3635, which differ from the corresponding compositions 1.1 to 1.3653, more preferred 1.1 to 1.3635, only in that they additionally comprise B.171 as further herbicide B.


Also especially preferred are compositions 69.1 to 69.3653, more preferred 69.1. to 69.3635, which differ from the corresponding compositions 1.1 to 1.3653, more preferred 1.1 to 1.3635, only in that they additionally comprise B.174 as further herbicide B.


Also especially preferred are compositions 70.1 to 70.3653, more preferred 70.1. to 70.3635, which differ from the corresponding compositions 1.1 to 1.3653, more preferred 1.1 to 1.3635, only in that they comprise as the active compound A the uracilpyridine of formula (I.a.115).


Also especially preferred are compositions 71.1 to 71.3653, more preferred 71.1. to 71.3635, which differ from the corresponding compositions 1.1 to 1.3653, more preferred 1.1 to 1.3635, only in that they comprise as the active compound A the uracilpyridine of formula (I.a.255).


Also especially preferred are compositions 72.1 to 72.3653, more preferred 72.1. to 72.3635, which differ from the corresponding compositions 1.1 to 1.3653, more preferred 1.1 to 1.3635, only in that they comprise as the active compound A the uracilpyridine of formula (I.a.277).


Also especially preferred are compositions 73.1 to 73.3653, more preferred 73.1. to 73.3635, which differ from the corresponding compositions 1.1 to 1.3653, more preferred 1.1 to 1.3635, only in that they comprise as the active compound A the uracilpyridine of formula (I.a.283).


Also especially preferred are compositions 74.1 to 74.3653, more preferred 74.1. to 74.3635, which differ from the corresponding compositions 1.1 to 1.3653, more preferred 1.1 to 1.3635, only in that they comprise as the active compound A the uracilpyridine of formula (I.a.87).


Also especially preferred are compositions 75.1 to 75.3653, more preferred 75.1. to 75.3635, which differ from the corresponding compositions 1.1 to 1.3653, more preferred 1.1 to 1.3635, only in that they comprise as the active compound A the uracilpyridine of formula (I.a.361).


Also especially preferred are compositions 76.1 to 76.3653, more preferred 76.1. to 76.3635, which differ from the corresponding compositions 1.1 to 1.3653, more preferred 1.1 to 1.3635, only in that they comprise as the active compound A the uracilpyridine of formula (I.a.367).


Also especially preferred are compositions 77.1 to 77.3653, more preferred 77.1. to 77.3635, which differ from the corresponding compositions 1.1 to 1.3653, more preferred 1.1 to 1.3635, only in that they comprise as the active compound A the uracilpyridine of formula (I.h.87).


Also especially preferred are compositions 78.1 to 78.3653, more preferred 78.1. to 78.3635, which differ from the corresponding compositions 1.1 to 1.3653, more preferred 1.1 to 1.3635, only in that they comprise as the active compound A the uracilpyridine of formula (I.h.109).


Also especially preferred are compositions 79.1 to 79.3653, more preferred 79.1. to 79.3635, which differ from the corresponding compositions 1.1 to 1.3653, more preferred 1.1 to 1.3635, only in that they comprise as the active compound A the uracilpyridine of formula (I.h.115).


Also especially preferred are compositions 80.1 to 80.3653, more preferred 80.1. to 80.3635, which differ from the corresponding compositions 1.1 to 1.3653, more preferred 1.1 to 1.3635, only in that they comprise as the active compound A the uracilpyridine of formula (I.h.255).


Also especially preferred are compositions 81.1 to 81.3653, more preferred 81.1. to 81.3635, which differ from the corresponding compositions 1.1 to 1.3653, more preferred 1.1 to 1.3635, only in that they comprise as the active compound A the uracilpyridine of formula (I.h.277).


Also especially preferred are compositions 82.1 to 82.3653, more preferred 82.1. to 82.3635, which differ from the corresponding compositions 1.1 to 1.3653, more preferred 1.1 to 1.3635, only in that they comprise as the active compound A the uracilpyridine of formula (I.h.283).


Also especially preferred are compositions 83.1 to 83.3653, more preferred 83.1. to 83.3635, which differ from the corresponding compositions 1.1 to 1.3653, more preferred 1.1 to 1.3635, only in that they comprise as the active compound A the uracilpyridine of formula (I.h.339).


Also especially preferred are compositions 84.1 to 84.3653, more preferred 84.1. to 84.3635, which differ from the corresponding compositions 1.1 to 1.3653, more preferred 1.1 to 1.3635, only in that they comprise as the active compound A the uracilpyridine of formula (I.h.361).


Also especially preferred are compositions 85.1 to 85.3653, more preferred 85.1. to 85.3635, which differ from the corresponding compositions 1.1 to 1.3653, more preferred 1.1 to 1.3635, only in that they comprise as the active compound A the uracilpyridine of formula (I.h.367).


Also especially preferred are compositions 86.1 to 86.3653, more preferred 86.1. to 86.3635, which differ from the corresponding compositions 1.1 to 1.3653, more preferred 1.1 to 1.3635, only in they comprise as the active compound A the uracilpyridine of formula (I.h.339) and additionally comprise B.2 as further herbicide B.


Also especially preferred are compositions 87.1 to 87.3653, more preferred 87.1. to 87.3635, which differ from the corresponding compositions 1.1 to 1.3653, more preferred 1.1 to 1.3635, only in that they comprise as the active compound A the uracilpyridine of formula (I.h.339) and additionally comprise B.8 as further herbicide B.


Also especially preferred are compositions 88.1 to 88.3653, more preferred 88.1. to 88.3635, which differ from the corresponding compositions 1.1 to 1.3653, more preferred 1.1 to 1.3635, only in that they comprise as the active compound A the uracilpyridine of formula (I.h.339) and additionally comprise B.as further herbicide B.


Also especially preferred are compositions 89.1 to 89.3653, more preferred 89.1. to 89.3635, which differ from the corresponding compositions 1.1 to 1.3653, more preferred 1.1 to 1.3635, only in that they comprise as the active compound A the uracilpyridine of formula (I.h.339) and additionally comprise B.32 as further herbicide B.


Also especially preferred are compositions 90.1 to 90.3653, more preferred 90.1. to 90.3635, which differ from the corresponding compositions 1.1 to 1.3653, more preferred 1.1 to 1.3635, only in that they comprise as the active compound A the uracilpyridine of formula (I.h.339) and additionally comprise B.as further herbicide B.


Also especially preferred are compositions 91.1 to 91.3653, more preferred 91.1. to 91.3635, which differ from the corresponding compositions 1.1 to 1.3653, more preferred 1.1 to 1.3635, only in that they comprise as the active compound A the uracilpyridine of formula (I.h.339) and additionally comprise B.38 as further herbicide B.


Also especially preferred are compositions 92.1 to 92.3653, more preferred 92.1. to 92.3635, which differ from the corresponding compositions 1.1 to 1.3653, more preferred 1.1 to 1.3635, only in that they comprise as the active compound A the uracilpyridine of formula (I.h.339) and additionally comprise B.as further herbicide B.


Also especially preferred are compositions 93.1 to 93.3653, more preferred 93.1. to 93.3635, which differ from the corresponding compositions 1.1 to 1.3653, more preferred 1.1 to 1.3635, only in that they comprise as the active compound A the uracilpyridine of formula (I.h.339) and additionally comprise B.51 as further herbicide B.


Also especially preferred are compositions 94.1 to 94.3653, more preferred 94.1. to 94.3635, which differ from the corresponding compositions 1.1 to 1.3653, more preferred 1.1 to 1.3635, only in that they comprise as the active compound A the uracilpyridine of formula (I.h.339) and additionally comprise B.55 as further herbicide B.


Also especially preferred are compositions 95.1 to 95.3653, more preferred 95.1. to 95.3635, which differ from the corresponding compositions 1.1 to 1.3653, more preferred 1.1 to 1.3635, only in that they comprise as the active compound A the uracilpyridine of formula (I.h.339) and additionally comprise B.56 as further herbicide B.


Also especially preferred are compositions 96.1 to 96.3653, more preferred 96.1. to 96.3635, which differ from the corresponding compositions 1.1 to 1.3653, more preferred 1.1 to 1.3635, only in that they comprise as the active compound A the uracilpyridine of formula (I.h.339) and additionally comprise B.64 as further herbicide B.


Also especially preferred are compositions 97.1 to 97.3653, more preferred 97.1. to 97.3635, which differ from the corresponding compositions 1.1 to 1.3653, more preferred 1.1 to 1.3635, only in that they comprise as the active compound A the uracilpyridine of formula (I.h.339) and additionally comprise B.66 as further herbicide B.


Also especially preferred are compositions 98.1 to 98.3653, more preferred 98.1. to 98.3635, which differ from the corresponding compositions 1.1 to 1.3653, more preferred 1.1 to 1.3635, only in that they comprise as the active compound A the uracilpyridine of formula (I.h.339) and additionally comprise B.67 as further herbicide B.


Also especially preferred are compositions 99.1 to 99.3653, more preferred 99.1. to 99.3635, which differ from the corresponding compositions 1.1 to 1.3653, more preferred 1.1 to 1.3635, only in that they comprise as the active compound A the uracilpyridine of formula (I.h.339) and additionally comprise B.68 as further herbicide B.


Also especially preferred are compositions 100.1 to 100.3653, more preferred 100.1. to 100.3635, which differ from the corresponding compositions 1.1 to 1.3653, more preferred 1.1 to 1.3635, only in that they comprise as the active compound A the uracilpyridine of formula (I.h.339) and additionally comprise B.69 as further herbicide B.


Also especially preferred are compositions 101.1 to 101.3653, more preferred 101.1. to 101.3635, which differ from the corresponding compositions 1.1 to 1.3653, more preferred 1.1 to 1.3635, only in that they comprise as the active compound A the uracilpyridine of formula (I.h.339) and additionally comprise B.73 as further herbicide B.


Also especially preferred are compositions 102.1 to 102.3653, more preferred 102.1. to 102.3635, which differ from the corresponding compositions 1.1 to 1.3653, more preferred 1.1 to 1.3635 only in that they comprise as the active compound A the uracilpyridine of formula (I.h.339) and additionally comprise B.76 as further herbicide B.


Also especially preferred are compositions 103.1 to 103.3653, more preferred 103.1. to 103.3635, which differ from the corresponding compositions 1.1 to 1.3653, more preferred 1.1 to 1.3635, only in that they comprise as the active compound A the uracilpyridine of formula (I.h.339) and additionally comprise B.81 as further herbicide B.


Also especially preferred are compositions 104.1 to 104.3653, more preferred 104.1. to 104.3635, which differ from the corresponding compositions 1.1 to 1.3653, more preferred 1.1 to 1.3635, only in that they comprise as the active compound A the uracilpyridine of formula (I.h.339) and additionally comprise B.82 as further herbicide B.


Also especially preferred are compositions 105.1 to 105.3653, more preferred 105.1. to 105.3635, which differ from the corresponding compositions 1.1 to 1.3653, more preferred 1.1 to 1.3635, only in that they comprise as the active compound A the uracilpyridine of formula (I.h.339) and additionally comprise B.85 as further herbicide B.


Also especially preferred are compositions 106.1 to 106.3653, more preferred 106.1. to 106.3635, which differ from the corresponding compositions 1.1 to 1.3653, more preferred 1.1 to 1.3635, only in that they comprise as the active compound A the uracilpyridine of formula (I.h.339) and additionally comprise B.88 as further herbicide B.


Also especially preferred are compositions 107.1 to 107.3653, more preferred 107.1. to 107.3635, which differ from the corresponding compositions 1.1 to 1.3653, more preferred 1.1 to 1.3635, only in that they comprise as the active compound A the uracilpyridine of formula (I.h.339) and additionally comprise B.89 as further herbicide B.


Also especially preferred are compositions 108.1 to 108.3653, more preferred 108.1. to 108.3635, which differ from the corresponding compositions 1.1 to 1.3653, more preferred 1.1 to 1.3635, only in that they comprise as the active compound A the uracilpyridine of formula (I.h.339) and additionally comprise B.94 as further herbicide B.


Also especially preferred are compositions 191.1 to 109.3653, more preferred 109.1. to 109.3635, which differ from the corresponding compositions 1.1 to 1.3653, more preferred 1.1 to 1.3635, only in that they comprise as the active compound A the uracilpyridine of formula (I.h.339) and additionally comprise B.95 as further herbicide B.


Also especially preferred are compositions 110.1 to 110.3653, more preferred 110.1. to 110.3635, which differ from the corresponding compositions 1.1 to 1.3653, more preferred 1.1 to 1.3635, only in that they comprise as the active compound A the uracilpyridine of formula (I.h.339) and additionally comprise B.98 as further herbicide B.


Also especially preferred are compositions 111.1 to 111.3653, more preferred 111.1. to 111.3635, which differ from the corresponding compositions 1.1 to 1.3653, more preferred 1.1 to 1.3635, only in that they comprise as the active compound A the uracilpyridine of formula (I.h.339) and additionally comprise B.100 as further herbicide B.


Also especially preferred are compositions 112.1 to 112.3653, more preferred 112.1. to 112.3635, which differ from the corresponding compositions 1.1 to 1.3653, more preferred 1.1 to 1.3635, only in that they comprise as the active compound A the uracilpyridine of formula (I.h.339) and additionally comprise B.103 as further herbicide B.


Also especially preferred are compositions 113.1 to 113.3653, more preferred 113.1. to 113.3635, which differ from the corresponding compositions 1.1 to 1.3653, more preferred 1.1 to 1.3635, only in that they comprise as the active compound A the uracilpyridine of formula (I.h.339) and additionally comprise B.103 and B.67 as further herbicides B.


Also especially preferred are compositions 114.1 to 114.3653, more preferred 114.1. to 114.3635, which differ from the corresponding compositions 1.1 to 1.3653, more preferred 1.1 to 1.3635, only in that they comprise as the active compound A the uracilpyridine of formula (I.h.339) and additionally comprise B.103 and B.76 as further herbicides B.


Also especially preferred are compositions 115.1 to 115.3653, more preferred 115.1. to 115.3635, which differ from the corresponding compositions 1.1 to 1.3653, more preferred 1.1 to 1.3635, only in that they comprise as the active compound A the uracilpyridine of formula (I.h.339) and additionally comprise B.103 and B.82 as further herbicides B.


Also especially preferred are compositions 116.1 to 116.3653, more preferred 116.1. to 116.3635, which differ from the corresponding compositions 1.1 to 1.3653, more preferred 1.1 to 1.3635, only in that they comprise as the active compound A the uracilpyridine of formula (I.h.339) and additionally comprise B.104 as further herbicide B.


Also especially preferred are compositions 117.1 to 117.3653, more preferred 117.1. to 117.3635, which differ from the corresponding compositions 1.1 to 1.3653, more preferred 1.1 to 1.3635, only in that they comprise as the active compound A the uracilpyridine of formula (I.h.339) and additionally comprise B.104 and B.67 as further herbicides B.


Also especially preferred are compositions 118.1 to 118.3653, more preferred 118.1. to 118.3635, which differ from the corresponding compositions 1.1 to 1.3653, more preferred 1.1 to 1.3635, only in that they comprise as the active compound A the uracilpyridine of formula (I.h.339) and additionally comprise B.104 and B.76 as further herbicides B.


Also especially preferred are compositions 119.1 to 119.3653, more preferred 119.1. to 119.3635, which differ from the corresponding compositions 1.1 to 1.3653, more preferred 1.1 to 1.3635, only in that they comprise as the active compound A the uracilpyridine of formula


(I.h.339) and additionally comprise B.104 and B.82 as further herbicides B.


Also especially preferred are compositions 120.1 to 120.3653, more preferred 120.1. to 120.3635, which differ from the corresponding compositions 1.1 to 1.3653, more preferred 1.1 to 1.3635, only in that they comprise as the active compound A the uracilpyridine of formula (I.h.339) and additionally comprise B.106 as further herbicide B.


Also especially preferred are compositions 121.1 to 121.3653, more preferred 121.1. to 121.3635, which differ from the corresponding compositions 1.1 to 1.3653, more preferred 1.1 to 1.3635, only in that they comprise as the active compound A the uracilpyridine of formula (I.h.339) and additionally comprise B.107 as further herbicide B.


Also especially preferred are compositions 122.1 to 122.3653, more preferred 122.1. to 122.3635, which differ from the corresponding compositions 1.1 to 1.3653, more preferred 1.1 to 1.3635, only in that they comprise as the active compound A the uracilpyridine of formula (I.h.339) and additionally comprise B. 107 and B.67 as further herbicides B.


Also especially preferred are compositions 123.1 to 123.3653, more preferred 123.1. to 123.3635, which differ from the corresponding compositions 1.1 to 1.3653, more preferred 1.1 to 1.3635, only in that they comprise as the active compound A the uracilpyridine of formula (I.h.339) and additionally comprise B. 107 and B.76 as further herbicides B.


Also especially preferred are compositions 124.1 to 124.3653, more preferred 124.1. to 124.3635, which differ from the corresponding compositions 1.1 to 1.3653, more preferred 1.1 to 1.3635, only in that they comprise as the active compound A the uracilpyridine of formula (I.h.339) and additionally comprise B. 107 and B.82 as further herbicides B.


Also especially preferred are compositions 125.1 to 125.3653, more preferred 125.1. to 125.3635, which differ from the corresponding compositions 1.1 to 1.3653, more preferred 1.1 to 1.3635, only in that they comprise as the active compound A the uracilpyridine of formula (I.h.339) and additionally comprise B.109 as further herbicide B.


Also especially preferred are compositions 126.1 to 126.3653, more preferred 126.1. to 126.3635, which differ from the corresponding compositions 1.1 to 1.3653, more preferred 1.1 to 1.3635, only in that they comprise as the active compound A the uracilpyridine of formula (I.h.339) and additionally comprise B.111 as further herbicide B.


Also especially preferred are compositions 127.1 to 127.3653, more preferred 127.1. to 5 127.3635, which differ from the corresponding compositions 1.1 to 1.3653, more preferred 1.1 to 1.3635, only in that they comprise as the active compound A the uracilpyridine of formula (I.h.339) and additionally comprise B.111 and B.67 as further herbicides B.


Also especially preferred are compositions 128.1 to 128.3653, more preferred 128.1. to 10 128.3635, which differ from the corresponding compositions 1.1 to 1.3653, more preferred 1.1 to 1.3635, only in that they comprise as the active compound A the uracilpyridine of formula (I.h.339) and additionally comprise B.111 and B.76 as further herbicides B.


Also especially preferred are compositions 129.1 to 129.3653, more preferred 129.1. to 15 129.3635, which differ from the corresponding compositions 1.1 to 1.3653, more preferred 1.1 to 1.3635, only in that they comprise as the active compound A the uracilpyridine of formula (I.h.339) and additionally comprise B.111 and B.82 as further herbicides B.


Also especially preferred are compositions 130.1 to 130.3653, more preferred 130.1. to 20 130.3635, which differ from the corresponding compositions 1.1 to 1.3653, more preferred 1.1 to 1.3635, only in that they comprise as the active compound A the uracilpyridine of formula (I.h.339) and additionally comprise B. 116 as further herbicide B.


Also especially preferred are compositions 131.1 to 131.3653, more preferred 131.1. to 25 131.3635, which differ from the corresponding compositions 1.1 to 1.3653, more preferred 1.1 to 1.3635, only in that they comprise as the active compound A the uracilpyridine of formula (I.h.339) and additionally comprise B.116 and B.67 as further herbicides B.


Also especially preferred are compositions 132.1 to 132.3653, more preferred 132.1. to 30 132.3635, which differ from the corresponding compositions 1.1 to 1.3653, more preferred 1.1 to 1.3635, only in that they comprise as the active compound A the uracilpyridine of formula (I.h.339) and additionally comprise B.116 and B.94 as further herbicides B.


Also especially preferred are compositions 133.1 to 133.3653, more preferred 133.1. to 35 133.3635, which differ from the corresponding compositions 1.1 to 1.3653, more preferred 1.1 to 1.3635, only in that they comprise as the active compound A the uracilpyridine of formula (I.h.339) and additionally comprise B.116 and B.103 as further herbicides B.


Also especially preferred are compositions 134.1 to 134.3653, more preferred 134.1. to 40 134.3635, which differ from the corresponding compositions 1.1 to 1.3653, more preferred 1.1 to 1.3635, only in that they comprise as the active compound A the uracilpyridine of formula (I.h.339) and additionally comprise B.116 and B.128 as further herbicides B.


Also especially preferred are compositions 135.1 to 135.3653, more preferred 135.1. to 135.3635, which differ from the corresponding compositions 1.1 to 1.3653, more preferred 1.1 to 1.3635, only in that they comprise as the active compound A the uracilpyridine of formula (I.h.339) and additionally comprise B.116 and B.104 as further herbicides B.


Also especially preferred are compositions 136.1 to 136.3653, more preferred 136.1. to 136.3635, which differ from the corresponding compositions 1.1 to 1.3653, more preferred 1.1 to 1.3635, only in that they comprise as the active compound A the uracilpyridine of formula (I.h.339) and additionally comprise B.116 and B.107 as further herbicides B.


Also especially preferred are compositions 137.1 to 137.3653, more preferred 137.1. to 137.3635, which differ from the corresponding compositions 1.1 to 1.3653, more preferred 1.1 to 1.3635, only in that they comprise as the active compound A the uracilpyridine of formula (I.h.339) and additionally comprise B.116 and B.111 as further herbicides B.


Also especially preferred are compositions 138.1 to 138.3653, more preferred 138.1. to 138.3635, which differ from the corresponding compositions 1.1 to 1.3653, more preferred 1.1 to 1.3635, only in that they comprise as the active compound A the uracilpyridine of formula (I.h.339) and additionally comprise B.122 as further herbicide B.


Also especially preferred are compositions 139.1 to 139.3653, more preferred 139.1. to 139.3635, which differ from the corresponding compositions 1.1 to 1.3653, more preferred 1.1 to 1.3635, only in that they comprise as the active compound A the uracilpyridine of formula (I.h.339) and additionally comprise B.126 as further herbicide B.


Also especially preferred are compositions 140.1 to 140.3653, more preferred 140.1. to 140.3635, which differ from the corresponding compositions 1.1 to 1.3653, more preferred 1.1 to 1.3635, only in that they comprise as the active compound A the uracilpyridine of formula (I.h.339) and additionally comprise B.128 as further herbicide B.


Also especially preferred are compositions 141.1 to 141.3653, more preferred 141.1. to 141.3635, which differ from the corresponding compositions 1.1 to 1.3653, more preferred 1.1 to 1.3635, only in that they comprise as the active compound A the uracilpyridine of formula (I.h.339) and additionally comprise B.131 as further herbicide B.


Also especially preferred are compositions 142.1 to 142.3653, more preferred 142.1. to 142.3635, which differ from the corresponding compositions 1.1 to 1.3653, more preferred 1.1 to 1.3635, only in that they comprise as the active compound A the uracilpyridine of formula (I.h.339) and additionally comprise B.132 as further herbicide B.


Also especially preferred are compositions 143.1 to 143.3653, more preferred 143.1. to 143.3635, which differ from the corresponding compositions 1.1 to 1.3653, more preferred 1.1 to 1.3635, only in that they comprise as the active compound A the uracilpyridine of formula (I.h.339) and additionally comprise B.133 as further herbicide B.


Also especially preferred are compositions 144.1 to 144.3653, more preferred 144.1. to 144.3635, which differ from the corresponding compositions 1.1 to 1.3653, more preferred 1.1 to 1.3635, only in that they comprise as the active compound A the uracilpyridine of formula (I.h.339) and additionally comprise B.135 as further herbicide B.


Also especially preferred are compositions 145.1 to 145.3653, more preferred 145.1. to 145.3635, which differ from the corresponding compositions 1.1 to 1.3653, more preferred 1.1 to 1.3635, only in that they comprise as the active compound A the uracilpyridine of formula (I.h.339) and additionally comprise B.137 as further herbicide B.


Also especially preferred are compositions 146.1 to 146.3653, more preferred 146.1. to 146.3635, which differ from the corresponding compositions 1.1 to 1.3653, more preferred 1.1 to 1.3635, only in that they comprise as the active compound A the uracilpyridine of formula (I.h.339) and additionally comprise B.138 as further herbicide B.


Also especially preferred are compositions 147.1 to 147.3653, more preferred 147.1. to 147.3635, which differ from the corresponding compositions 1.1 to 1.3653, more preferred 1.1 to 1.3635, only in that they comprise as the active compound A the uracilpyridine of formula (I.h.339) and additionally comprise B.140 as further herbicide B.


Also especially preferred are compositions 148.1 to 148.3653, more preferred 148.1. to 148.3635, which differ from the corresponding compositions 1.1 to 1.3653, more preferred 1.1 to 1.3635, only in that they comprise as the active compound A the uracilpyridine of formula (I.h.339) and additionally comprise B.145 as further herbicide B.


Also especially preferred are compositions 149.1 to 149.3653, more preferred 149.1. to 149.3635, which differ from the corresponding compositions 1.1 to 1.3653, more preferred 1.1 to 1.3635, only in that they comprise as the active compound A the uracilpyridine of formula (I.h.339) and additionally comprise B.153 as further herbicide B.


Also especially preferred are compositions 150.1 to 150.3653, more preferred 150.1. to 150.3635, which differ from the corresponding compositions 1.1 to 1.3653, more preferred 1.1 to 1.3635, only in that they comprise as the active compound A the uracilpyridine of formula (I.h.339) and additionally comprise B.156 as further herbicide B.


Also especially preferred are compositions 151.1 to 151.3653, more preferred 151.1. to 151.3635, which differ from the corresponding compositions 1.1 to 1.3653, more preferred 1.1 to 1.3635, only in that they comprise as the active compound A the uracilpyridine of formula (I.h.339) and additionally comprise B.171 as further herbicide B.


Also especially preferred are compositions 152.1 to 152.3653, more preferred 152.1. to 152.3635, which differ from the corresponding compositions 1.1 to 1.3653, more preferred 1.1 to 1.3635, only in that they comprise as the active compound A the uracilpyridine of formula (I.h.339) and additionally comprise B.174 as further herbicide B.


It is generally preferred to use the compounds of the invention in combination with herbicides that are selective for the crop being treated and which complement the spectrum of weeds controlled by these compounds at the application rate employed. It is further generally preferred to apply the compounds of the invention and other complementary herbicides at the same time, either as a combination formulation or as a tank mix.


It is recognized that the polynucleotide molecules and polypeptides of the invention encompass polypeptides comprising an amino acid sequence that is sufficiently identical to the amino acid sequences set forth in SEQ ID Nos: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 265, 266, 267, 268, 269, 270, 271, 272, 273, 274, 275, 276, 277, 278, 279, 280, 281, 282, 283, 284, 285, 286, 287, 288, 289, 290, 291, 292, 293, 294, 295, 296, 297, 298, 299, 300, 301, 302, 303, 304, 305, 306, 307, 308, 309, 310, 311, 312, 313, 314, 315, 316, 317, 318, 319, 320, 321, 322, 323, 324, 325, 326, 327328, 329, 330, 331, 332, 333, 334, 335, 336, 337, 338, 339, 340, 341, 342, 343, 344, 345, 346, 347, 348, 349, 350, 351, 352, 353, 354, 355, 356, 357, 358, 359, 360, 361, 362, 363, 364, 365, 366, 367, 368, 369, 370, 371, 372, 373, 374, 375, 376, 377, 378, 379, 380, 381, 382, 383, 384, 385, 386, 387, 388, 389, 390, 391, 392, 393, 394, 395, 396, 397, 398, 399, 400, 401, 402, 403, 404, 405, 406, 407, 408, 409, 410, 411, 412, 413, 414, 415, 416, 417, 418, 419, 420, 421, 422, 423, 424, 425, 426, 427, 428, 429, 430, 431, 432, 433, 434, 435, 436, 437, 438, 439, 440, 441, 442, 443, 444, 445, 446, 447, 448, 449, 450, 451, 452, 453, 454, 455, 456, 457, 458, 459, 460, 461, 462, 463, 464, 465, 466, 467, 468, 469, 470, 471, 472, 473, 474, 475, 476, 477, 478, 479, 480, 481, 482, 483, 484, 485, 486, 487, 488, 489, 490, 491, 492, 493, 494, 495, 496, 497, 498, 499, 500, 501, 502, 503, 504, 505, 506, 507, 508, 509, 510, 511, 512, 513, 514, 515, 516, 517, 518, 519, 520, 521, 522, 523, 524, 525, 526, 527, 528, 529, 530, 531, 532, 533, 534, 535, 536, 537, 538, 539, 540, 541, 542, 543, 544, 545, 546, 547, 548, 549, 550, 551, 552, 553, 554, 555, 556, 557, 558, 559, 560, 561, 562, 563, 564, 565, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637. The term “sufficiently identical” is used herein to refer to a first amino acid or nucleotide sequence that contains a sufficient or minimum number of identical or equivalent (e.g., with a similar side chain) amino acid residues or nucleotides to a second amino acid or nucleotide sequence such that the first and second amino acid or nucleotide sequences have a common structural domain and/or common functional activity.


Generally, “sequence identity” refers to the extent to which two optimally aligned DNA or amino acid sequences are invariant throughout a window of alignment of components, e.g., nucleotides or amino acids. An “identity fraction” for aligned segments of a test sequence and a reference sequence is the number of identical components that are shared by the two aligned sequences divided by the total number of components in reference sequence segment, i.e., the entire reference sequence or a smaller defined part of the reference sequence. “Percent identity” is the identity fraction times 100. Optimal alignment of sequences for aligning a comparison window are well known to those skilled in the art and may be conducted by tools such as the local homology algorithm of Smith and Waterman, the homology alignment algorithm of Needleman and Wunsch, the search for similarity method of Pearson and Lipman, and preferably by computerized implementations of these algorithms such as GAP, BESTFIT, FASTA, and TFASTA available as part of the GCG. Wisconsin Package. (Accelrys Inc. Burlington, Mass.)


Polynucleotides and Oligonucleotides


By an “isolated polynucleotide”, including DNA, RNA, or a combination of these, single or double stranded, in the sense or antisense orientation or a combination of both, dsRNA or otherwise, we mean a polynucleotide which is at least partially separated from the polynucleotide sequences with which it is associated or linked in its native state. That means other nucleic acid molecules are present in an amount less than 5% based on weight of the amount of the desired nucleic acid, preferably less than 2% by weight, more preferably less than 1% by weight, most preferably less than 0.5% by weight. Preferably, an “isolated” nucleic acid is free of some of the sequences that naturally flank the nucleic acid (i.e., sequences located at the 5′ and 3′ ends of the nucleic acid) in the genomic DNA of the organism from which the nucleic acid is derived. For example, in various embodiments, the isolated herbicide resistance and/or tolerance related protein encoding nucleic acid molecule can contain less than about 5 kb, 4 kb, 3 kb, 2 kb, 1 kb, 0.5 kb or 0.1 kb of nucleotide sequences which naturally flank the nucleic acid molecule in genomic DNA of the cell from which the nucleic acid is derived. Moreover, an “isolated” nucleic acid molecule, such as a cDNA molecule, can be free from some of the other cellular material with which it is naturally associated, or culture medium when produced by recombinant techniques, or chemical precursors or other chemicals when chemically synthesized. Preferably, the isolated polynucleotide is at least 60% free, preferably at least 75% free, and most preferably at least 90% free from other components with which they are naturally associated. As the skilled addressee would be aware, an isolated polynucleotide can be an exogenous polynucleotide present in, for example, a transgenic organism which does not naturally comprise the polynucleotide. Furthermore, the terms “polynucleotide(s)”, “nucleic acid sequence(s)”, “nucleotide sequence(s)”, “nucleic acid(s)”, “nucleic acid molecule” are used interchangeably herein and refer to nucleotides, either ribonucleotides or deoxyribonucleotides or a combination of both, in a polymeric unbranched form of any length.


The term “mutated PPO nucleic acid” refers to a PPO nucleic acid having a sequence that is mutated from a wild-type PPO nucleic acid, such as e.g. SEQ ID NO: 118, 119, 120, 121, 122, 123, 124, 125, 126, 127, 128, 624, 626, or 650, or homologues, paralogues and and orthologues thereof; and that confers increased uracilpyridine herbicide tolerance to a plant in which it is expressed. Furthermore, the term “mutated protoporphyrinogen oxidase (mutated PPO)” refers to the replacement of an amino acid of the wild-type primary sequences SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, or a variant, a derivative, a homologue, an orthologue, or paralogue thereof, with another amino acid. The expression “mutated amino acid” will be used below to designate the amino acid which is replaced by another amino acid, thereby designating the site of the mutation in the primary sequence of the protein.


In a preferred embodiment, the PPO nucleotide sequence encoding a mutated PPO comprises the sequence of SEQ ID NO: 118, 119, 120, 121, 122, 123, 124, 125, 126, 127, 128, 624, 626, or 650, or a variant or derivative thereof.


Furthermore, it will be understood by the person skilled in the art that the PPO nucleotide sequences encompasse homologues, paralogues and and orthologues of SEQ ID NO: 118, 119, 120, 121, 122, 123, 124, 125, 126, 127, 128, 624, 626, or 650, as defined hereinafter.


The term “variant” with respect to a sequence (e.g., a polypeptide or nucleic acid sequence such as—for example—a transcription regulating nucleotide sequence of the invention) is intended to mean substantially similar sequences. For nucleotide sequences comprising an open reading frame, variants include those sequences that, because of the degeneracy of the genetic code, encode the identical amino acid sequence of the native protein. Naturally occurring allelic variants such as these can be identified with the use of well-known molecular biology techniques, as, for example, with polymerase chain reaction (PCR) and hybridization techniques. Variant nucleotide sequences also include synthetically derived nucleotide sequences, such as those generated, for example, by using site-directed mutagenesis and for open reading frames, encode the native protein, as well as those that encode a polypeptide having amino acid substitutions relative to the native protein, e.g. the mutated PPO according to the present invention as disclosed herein.


Generally, nucleotide sequence variants of the invention will have at least 30, 40, 50, 60, to 70%, e.g., preferably 71%, 72%, 73%, 74%, 75%, 76%, 77%, 78%, to /9/0 0,, generally at least 80%, e.g., 81%-84%, at least 85%, e.g., 86%, 87%, 88%, 89%, 90%, 91%, 92%, 93%, 94%, 95%, 96%, 97%, to 98% and 99% nucleotide “sequence identity” to the nucleotide sequence encoding a polypeptide of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, 637, 265, 266, 267, 268, 269, 270, 271, 272, 273, 274, 275, 276, 277, 278, 279, 280, 281, 282, 283, 284, 285, 286, 287, 288, 289, 290, 291, 292, 293, 294, 295, 296, 297, 298, 299, 300, 301, 302, 303, 304, 305, 306, 307, 308, 309, 310, 311, 312, 313, 314, 315, 316, 317, 318, 319, 320, 321, 322, 323, 324, 325, 326, 327328, 329, 330, 331, 332, 333, 334, 335, 336, 337, 338, 339, 340, 341, 342, 343, 344, 345, 346, 347, 348, 349, 350, 351, 352, 353, 354, 355, 356, 357, 358, 359, 360, 361, 362, 363, 364, 365, 366, 367, 368, 369, 370, 371, 372, 373, 374, 375, 376, 377, 378, 379, 380, 381, 382, 383, 384, 385, 386, 387, 388, 389, 390, 391, 392, 393, 394, 395, 396, 397, 398, 399, 400, 401, 402, 403, 404, 405, 406, 407, 408, 409, 410, 411, 412, 413, 414, 415, 416, 417, 418, 419, 420, 421, 422, 423, 424, 425, 426, 427, 428, 429, 430, 431, 432, 433, 434, 435, 436, 437, 438, 439, 440, 441, 442, 443, 444, 445, 446, 447, 448, 449, 450, 451, 452, 453, 454, 455, 456, 457, 458, 459, 460, 461, 462, 463, 464, 465, 466, 467, 468, 469, 470, 471, 472, 473, 474, 475, 476, 477, 478, 479, 480, 481, 482, 483, 484, 485, 486, 487, 488, 489, 490, 491, 492, 493, 494, 495, 496, 497, 498, 499, 500, 501, 502, 503, 504, 505, 506, 507, 508, 509, 510, 511, 512, 513, 514, 515, 516, 517, 518, 519, 520, 521, 522, 523, 524, 525, 526, 527, 528, 529, 530, 531, 532, 533, 534, 535, 536, 537, 538, 539, 540, 541, 542, 543, 544, 545, 546, 547, 548, 549, 550, 551, 552, 553, 554, 555, 556, 557, 558, 559, 560, 561, 562, 563, 564, or 565.


The % identity of a polynucleotide is determined by GAP (Needleman and Wunsch, 1970) analysis (GCG program) with a gap creation penalty=5, and a gap extension penalty=0.3. Unless stated otherwise, the query sequence is at least nucleotides in length, and the GAP analysis aligns the two sequences over a region of at least nucleotides. Preferably, the query sequence is at least 150 nucleotides in length, and the GAP analysis aligns the two sequences over a region of at least 150 nucleotides. More preferably, the query sequence is at least 300 nucleotides in length and the GAP analysis aligns the two sequences over a region of at least 300 nucleotides. Even more preferably, the GAP analysis aligns the two sequences over their entire length.


Polypeptides


By “substantially purified polypeptide” or “purified” a polypeptide is meant that has been separated from one or more lipids, nucleic acids, other polypeptides, or other contaminating molecules with which it is associated in its native state. It is preferred that the substantially purified polypeptide is at least 60% free, more preferably at least 75% free, and more preferably at least 90% free from other components with which it is naturally associated. As the skilled addressee will appreciate, the purified polypeptide can be a recombinantly produced polypeptide. The terms “polypeptide” and “protein” are generally used interchangeably and refer to a single polypeptide chain which may or may not be modified by addition of non-amino acid groups. It would be understood that such polypeptide chains may associate with other polypeptides or proteins or other molecules such as co-factors. The terms “proteins” and “polypeptides” as used herein also include variants, mutants, modifications, analogous and/or derivatives of the polypeptides of the invention as described herein.


The % identity of a polypeptide is determined by GAP (Needleman and Wunsch, 1970) analysis (GCG program) with a gap creation penalty=5, and a gap extension penalty=0.3. The query sequence is at least amino acids in length, and the GAP analysis aligns the two sequences over a region of at least amino acids. More preferably, the query sequence is at least 50 amino acids in length, and the GAP analysis aligns the two sequences over a region of at least 50 amino acids. More preferably, the query sequence is at least 100 amino acids in length and the GAP analysis aligns the two sequences over a region of at least 100 amino acids. Even more preferably, the query sequence is at least 250 amino acids in length and the GAP analysis aligns the two sequences over a region of at least 250 amino acids. Even more preferably, the GAP analysis aligns the two sequences over their entire length.


With regard to a defined polypeptide, it will be appreciated that % identity figures higher than those provided above will encompass preferred embodiments. Thus, where applicable, in light of the minimum % identity figures, it is preferred that the PPO polypeptide of the invention comprises an amino acid sequence which is at least 40%, more preferably at least 45%, more preferably at least 50%, more preferably at least 55%, more preferably at least 60%, more preferably at least 65%, more preferably at least 70%, more preferably at least 75%, more preferably at least 80%, more preferably at least 85%, more preferably at least 90%, more preferably at least 91%, more preferably at least 92%, more preferably at least 93%, more preferably at least 94%, more preferably at least 95%, more preferably at least 96%, more preferably at least 97%, more preferably at least 98%, more preferably at least 99%, more preferably at least 99.1%, more preferably at least 99.2%, more preferably at least 99.3%, more preferably at least 99.4%, more preferably at least 99.5%, more preferably at least 99.6%, more preferably at least 99.7%, more preferably at least 99.8%, and even more preferably at least 99.9% identical to SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, 637, 265, 266, 267, 268, 269, 270, 271, 272, 273, 274, 275, 276, 277, 278, 279, 280, 281, 282, 283, 284, 285, 286, 287, 288, 289, 290, 291, 292, 293, 294, 295, 296, 297, 298, 299, 300, 301, 302, 303, 304, 305, 306, 307, 308, 309, 310, 311, 312, 313, 314, 315, 316, 317, 318, 319, 320, 321, 322, 323, 324, 325, 326, 327328, 329, 330, 331, 332, 333, 334, 335, 336, 337, 338, 339, 340, 341, 342, 343, 344, 345, 346, 347, 348, 349, 350, 351, 352, 353, 354, 355, 356, 357, 358, 359, 360, 361, 362, 363, 364, 365, 366, 367, 368, 369, 370, 371, 372, 373, 374, 375, 376, 377, 378, 379, 380, 381, 382, 383, 384, 385, 386, 387, 388, 389, 390, 391, 392, 393, 394, 395, 396, 397, 398, 399, 400, 401, 402, 403, 404, 405, 406, 407, 408, 409, 410, 411, 412, 413, 414, 415, 416, 417, 418, 419, 420, 421, 422, 423, 424, 425, 426, 427, 428, 429, 430, 431, 432, 433, 434, 435, 436, 437, 438, 439, 440, 441, 442, 443, 444, 445, 446, 447, 448, 449, 450, 451, 452, 453, 454, 455, 456, 457, 458, 459, 460, 461, 462, 463, 464, 465, 466, 467, 468, 469, 470, 471, 472, 473, 474, 475, 476, 477, 478, 479, 480, 481, 482, 483, 484, 485, 486, 487, 488, 489, 490, 491, 492, 493, 494, 495, 496, 497, 498, 499, 500, 501, 502, 503, 504, 505, 506, 507, 508, 509, 510, 511, 512, 513, 514, 515, 516, 517, 518, 519, 520, 521, 522, 523, 524, 525, 526, 527, 528, 529, 530, 531, 532, 533, 534, 535, 536, 537, 538, 539, 540, 541, 542, 543, 544, 545, 546, 547, 548, 549, 550, 551, 552, 553, 554, 555, 556, 557, 558, 559, 560, 561, 562, 563, 564, or 565.


By “variant” polypeptide is intended a polypeptide derived from the protein of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, 637, 265, 266, 267, 268, 269, 270, 271, 272, 273, 274, 275, 276, 277, 278, 279, 280, 281, 282, 283, 284, 285, 286, 287, 288, 289, 290, 291, 292, 293, 294, 295, 296, 297, 298, 299, 300, 301, 302, 303, 304, 305, 306, 307, 308, 309, 310, 311, 312, 313, 314, 315, 316, 317, 318, 319, 320, 321, 322, 323, 324, 325, 326, 327328, 329, 330, 331, 332, 333, 334, 335, 336, 337, 338, 339, 340, 341, 342, 343, 344, 345, 346, 347, 348, 349, 350, 351, 352, 353, 354, 355, 356, 357, 358, 359, 360, 361, 362, 363, 364, 365, 366, 367, 368, 369, 370, 371, 372, 373, 374, 375, 376, 377, 378, 379, 380, 381, 382, 383, 384, 385, 386, 387, 388, 389, 390, 391, 392, 393, 394, 395, 396, 397, 398, 399, 400, 401, 402, 403, 404, 405, 406, 407, 408, 409, 410, 411, 412, 413, 414, 415, 416, 417, 418, 419, 420, 421, 422, 423, 424, 425, 426, 427, 428, 429, 430, 431, 432, 433, 434, 435, 436, 437, 438, 439, 440, 441, 442, 443, 444, 445, 446, 447, 448, 449, 450, 451, 452, 453, 454, 455, 456, 457, 458, 459, 460, 461, 462, 463, 464, 465, 466, 467, 468, 469, 470, 471, 472, 473, 474, 475, 476, 477, 478, 479, 480, 481, 482, 483, 484, 485, 486, 487, 488, 489, 490, 491, 492, 493, 494, 495, 496, 497, 498, 499, 500, 501, 502, 503, 504, 505, 506, 507, 508, 509, 510, 511, 512, 513, 514, 515, 516, 517, 518, 519, 520, 521, 522, 523, 524, 525, 526, 527, 528, 529, 530, 531, 532, 533, 534, 535, 536, 537, 538, 539, 540, 541, 542, 543, 544, 545, 546, 547, 548, 549, 550, 551, 552, 553, 554, 555, 556, 557, 558, 559, 560, 561, 562, 563, 564, or 565, by deletion (so-called truncation) or addition of one or more amino acids to the N-terminal and/or C-terminal end of the native protein; deletion or addition of one or more amino acids at one or more sites in the native protein; or substitution of one or more amino acids at one or more sites in the native protein. Such variants may result from, for example, genetic polymorphism or from human manipulation. Methods for such manipulations are generally known in the art.


“Derivatives” of a protein encompass peptides, oligopeptides, polypeptides, proteins and enzymes having amino acid substitutions, deletions and/or insertions relative to the unmodified protein in question and having similar biological and functional activity as the unmodified protein from which they are derived.


“Homologues” of a protein encompass peptides, oligopeptides, polypeptides, proteins and enzymes having amino acid substitutions, deletions and/or insertions relative to the unmodified protein in question and having similar biological and functional activity as the unmodified protein from which they are derived.


A deletion refers to removal of one or more amino acids from a protein.


An insertion refers to one or more amino acid residues being introduced into a predetermined site in a protein. Insertions may comprise N-terminal and/or C-terminal fusions as well as intra-sequence insertions of single or multiple amino acids. Generally, insertions within the amino acid sequence will be smaller than N- or C-terminal fusions, of the order of about 1 to residues. Examples of N- or C-terminal fusion proteins or peptides include the binding domain or activation domain of a transcriptional activator as used in the yeast two-hybrid system, phage coat proteins, (histidine)-6-tag, glutathione S-transferase-tag, protein A, maltose-binding protein, dihydrofolate reductase, Tag·100 epitope, c-myc epitope, FLAG'-epitope, lacZ, CMP (calmodulin-binding peptide), HA epitope, protein C epitope and VSV epitope.


A substitution refers to replacement of amino acids of the protein with other amino acids having similar properties (such as similar hydrophobicity, hydrophilicity, antigenicity, propensity to form or break α-helical structures or β-sheet structures). Amino acid substitutions are typically of single residues, but may be clustered depending upon functional constraints placed upon the polypeptide and may range from 1 to 10 amino acids; insertions will usually be of the order of about 1 to 10 amino acid residues. The amino acid substitutions are preferably conservative amino acid substitutions. Conservative substitution tables are well known in the art (see for example Creighton (1984) Proteins. W.H. Freeman and Company (Eds).









TABLE 1







Examples of conserved amino


acid substitutions











Conservative



Residue
Substitutions







Ala
Ser



Arg
Lys



Asn
Gln; His



Asp
Glu



Gln
Asn



Cys
Ser



Glu
Asp



Gly
Pro



His
Asn; Gln



Ile
Leu, Val



Leu
Ile; Val



Lys
Arg; Gln



Met
Leu; He



Phe
Met; Leu; Tyr



Ser
Thr; Gly



Thr
Ser; Val



Trp
Tyr



Tyr
Trp; Phe



Val
Ile; Leu










Amino acid substitutions, deletions and/or insertions may readily be made using peptide synthetic techniques well known in the art, such as solid phase peptide synthesis and the like, or by recombinant DNA manipulation. Methods for the manipulation of DNA sequences to produce substitution, insertion or deletion variants of a protein are well known in the art. For example, techniques for making substitution mutations at predetermined sites in DNA are well known to those skilled in the art and include M13 mutagenesis, T7-Gen in vitro mutagenesis (USB, Cleveland, OH), QuickChange Site Directed mutagenesis (Stratagene, San Diego, Calif.), PCR-mediated site-directed mutagenesis or other site-directed mutagenesis protocols.


“Derivatives” further include peptides, oligopeptides, polypeptides which may, compared to the amino acid sequence of the naturally-occurring form of the protein, such as the protein of interest, comprise substitutions of amino acids with non-naturally occurring amino acid residues, or additions of non-naturally occurring amino acid residues. “Derivatives” of a protein also encompass peptides, oligopeptides, polypeptides which comprise naturally occurring altered (glycosylated, acylated, prenylated, phosphorylated, myristoylated, sulphated etc.) or non-naturally altered amino acid residues compared to the amino acid sequence of a naturally-occurring form of the polypeptide. A derivative may also comprise one or more non-amino acid substituents or additions compared to the amino acid sequence from which it is derived, for example a reporter molecule or other ligand, covalently or non-covalently bound to the amino acid sequence, such as a reporter molecule which is bound to facilitate its detection, and non-naturally occurring amino acid residues relative to the amino acid sequence of a naturally-occurring protein. Furthermore, “derivatives” also include fusions of the naturally-occurring form of the protein with tagging peptides such as FLAG, HIS6 or thioredoxin (for a review of tagging peptides, see Terpe, Appl. Microbiol. Biotechnol. 60, 523-533, 2003).


“Orthologues” and “paralogues” encompass evolutionary concepts used to describe the ancestral relationships of genes. Paralogues are genes within the same species that have originated through duplication of an ancestral gene; orthologues are genes from different organisms that have originated through speciation, and are also derived from a common ancestral gene.


It is well-known in the art that paralogues and orthologues may share distinct domains harboring suitable amino acid residues at given sites, such as binding pockets for particular substrates or binding motifs for interaction with other proteins.


The term “domain” refers to a set of amino acids conserved at specific positions along an alignment of sequences of evolutionarily related proteins. While amino acids at other positions can vary between homologues, amino acids that are highly conserved at specific positions indicate amino acids that are likely essential in the structure, stability or function of a protein. Identified by their high degree of conservation in aligned sequences of a family of protein homologues, they can be used as identifiers to determine if any polypeptide in question belongs to a previously identified polypeptide family.


The term “motif” or “consensus sequence” refers to a short conserved region in the sequence of evolutionarily related proteins. Motifs are frequently highly conserved parts of domains, but may also include only part of the domain, or be located outside of conserved domain (if all of the amino acids of the motif fall outside of a defined domain). Preferred motifs which are contained in the sequences of the PPO polypeptides according to the present invention are SQ[N/K/H]KRYI, TLGTLFSS, [F/Y]TTF[V/I]GG.


Specialist databases exist for the identification of domains, for example, SMART (Schultz et al. (1998) Proc. Natl. Acad. Sci. USA 95, 5857-5864; Letunic et al. (2002) Nucleic Acids Res 30, 242-244), InterPro (Mulder et al., (2003) Nucl. Acids. Res. 31, 315-318), Prosite (Bucher and Bairoch (1994), A generalized profile syntax for biomolecular sequences motifs and its function in automatic sequence interpretation. (In) ISMB-94; Proceedings 2nd International Conference on Intelligent Systems for Molecular Biology. Altman R., Brutlag D., Karp P., Lathrop R., Searls D., Eds., pp53-61, AAAI Press, Menlo Park; Hulo et al., Nucl. Acids. Res. 32:D134-D137, (2004)), or Pfam (Bateman et al., Nucleic Acids Research 30(1): 276-280 (2002)). A set of tools for in silico analysis of protein sequences is available on the ExPASy proteomics server (Swiss Institute of Bioinformatics (Gasteiger et al., ExPASy: the proteomics server for in-depth protein knowledge and analysis, Nucleic Acids Res. 31:3784-3788(2003)). Domains or motifs may also be identified using routine techniques, such as by sequence alignment.


Methods for the alignment of sequences for comparison are well known in the art, such methods include GAP, BESTFIT, BLAST, FASTA and TFASTA. GAP uses the algorithm of Needleman and Wunsch ((1970) J Mol Biol 48: 443-453) to find the global (i.e. spanning the complete sequences) alignment of two sequences that maximizes the number of matches and minimizes the number of gaps. The BLAST algorithm (Altschul et al. (1990) J Mol Biol 215: 403-10) calculates percent sequence identity and performs a statistical analysis of the similarity between the two sequences. The software for performing BLAST analysis is publicly available through the National Centre for Biotechnology Information (NCBI). Homologues may readily be identified using, for example, the ClustalW multiple sequence alignment algorithm (version 1.83), with the default pairwise alignment parameters, and a scoring method in percentage. Global percentages of similarity and identity may also be determined using one of the methods available in the MatGAT software package (Campanella et al., BMC Bioinformatics. 2003 Jul. 10;4:29. MatGAT: an application that generates similarity/identity matrices using protein or DNA sequences.). Minor manual editing may be performed to optimise alignment between conserved motifs, as would be apparent to a person skilled in the art. Furthermore, instead of using full-length sequences for the identification of homologues, specific domains may also be used. The sequence identity values may be determined over the entire nucleic acid or amino acid sequence or over selected domains or conserved motif(s), using the programs mentioned above using the default parameters. For local alignments, the Smith-Waterman algorithm is particularly useful (Smith TF, Waterman MS (1981) J. Mol. Biol 147(1);195-7).


The inventors of the present invention have found that by substituting one or more of the key amino acid residues, employing e.g. one of the above described methods to mutate the encoding nucleic acids, the uracilpyridine herbicide tolerance or resistance could be remarkably increased as compared to the activity of the wild type PPO enzymes with SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637. Preferred substitutions of mutated PPO are those that increase the herbicide tolerance of the plant, but leave the biological activitiy of the oxidase activity substantially unaffected.


Accordingly, in another object of the present invention the key amino acid residues of a PPO enzyme comprising SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, is substituted by any other amino acid.


In one embodiment, the key amino acid residues of a PPO enzyme, a variant, derivative, orthologue, paralogue or homologue thereof, is substituted by a conserved amino acid as depicted in Table 1.


It will be understood by the person skilled in the art that amino acids located in a close proximity to the positions of amino acids mentioned below may also be substituted. Thus, in another embodiment the variant of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof comprises a mutated PPO, wherein an amino acid ±3, ±2 or ±1 amino acid positions from a key amino acid is substituted by any other amino acid.


Based on techniques well-known in the art, a highly characteristic sequence pattern can be developed, by means of which further of mutated PPO candidates with the desired activity may be searched.


Searching for further mutated PPO candidates by applying a suitable sequence pattern would also be encompassed by the present invention. It will be understood by a skilled reader that the present sequence pattern is not limited by the exact distances between two adjacent amino acid residues of said pattern. Each of the distances between two neighbours in the above patterns may, for example, vary independently of each other by up to ±10, ±5, ±3, ±2 or ±1 amino acid positions without substantially affecting the desired activity.


Furthermore, by applying the method of site directed mutagenesis, in particular saturation mutagenes (see e.g. Schenk et al., Biospektrum 03/2006, pages 277-279), the inventors of the present invention have identified and generated specific amino acid subsitutions and combinations thereof, which—when introduced into a plant by transforming and expressing the respective mutated PPO encoding nucleic acid—confer increased herbicide resistance or tolerance to a uracilpyridine herbicide to said plant.


Thus, in a particularly preferred embodiment, the variant or derivative of the mutated PPO refers to a polypeptide comprsining SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, or 637, comprising a single amino acid substitution at positions depicted in the following Table 2a..









TABLE 2a-1







Single amino acid substitutions within SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9,


10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28,


29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47,


48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66,


67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85,


86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103,


104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, or 637













SEQ

Mutated
Mutated
Mutated
Mutated
Mutated


ID
Organism
site 1
site 2
site 3
site 4
site 5
















1

Amaranthus

R128
G210
G211
L397
F420




tuberculatus



2

Amaranthus

R128
G210
G211
L397
F420




tuberculatus



3

Amaranthus

R128
G210

L396
F419




tuberculatus



4

Amaranthus

R128
G210

L396
F419




tuberculatus



5

Amaranthus

R128
G210
G211
L398
F421




hypochondriacus



6

Amaranthus

R98
G180
G181
L368
F391




tuberculatus



7

Spinacia oleracea

R127
G209
G210
L397
F420


8

Vitis vinifera

R100
G182
G183
L373
F396


9

Ricinus communis

R99
A181
G182
L372
F395


10

Theobroma cacao

R98
A180
G181
L370
F393


11

Glycine max

R98
A180
A181
L367
F390


12

Prunus persica

R96
A175
G176
L366
F389


13

Medicago truncatula

R98
A180
A181
L367
F390


14

Fragaria vesca subsp.

R98
A177
G178
L368
F391




vesca



15

Citrus clementina

R98
A180
A181
L370
F393


16

Citrus clementina

R98
A180
A181
L370
F393


17

Cicer arietinum

R98
A180
A181
L367
F390


18

Cucumis sativus

R98
A180
G181
L368
F391


19

Cucumis sativus

R93
A175
G176
L363
F386


20

Nicotiana tabacum

R98
G178
G179
L369
F392


21

Solanum lycopersicum

R95
G175
G176
L366
F389


22

Arabidopsis thaliana

R101
A182
A183
L371
F394


23

Arabidopsis lyrata

R103
A186
A187
L375
F398



subsp. lyrata


24

Arabidopsis thaliana

R101
A182
A183
L364
F387


25

Arabidopsis thaliana

R147
A228
A229
L410
F433


26

Ambrosia artemisiifolia

R74
G151
G152
L336
F359


27

Setaria italica

R128
A213
G214
L408
F431


28

Sorghum bicolor

R130
A215
G216
L410
F433


29

Arabidopsis thaliana

R101
A152
A153
L341
F364


30

Zea mays

R130
A215
G216
L410
F433


31

Zea mays

R130
A215
G216
L410
F433


32
LEMPA
R105
G188
G189
L381
F404


33
LEMPA
R150
A226
G227
L409
Y432


34

Populus trichocarpa

R100
A182
G183
L373
F396


35

Capsella rubella

R165
A248
A249
L433
F456


36

Brachypodium

R134
A219
G220
L414
F437




distachyon



37

Oryza sativa Japonica

R95
G179
G180
L374
F397



Group


38

Picea sitchensis

R100
G186
A187
L354
F377


39

Solarium tuberosum

R98
G178
G179
L369
F392


40

Oryza sativa Indica

R139
G224
G225
L419
F442



Group


41

Oryza sativa Japonica

R139
G224
G225
L419
F442



Group


42

Eutrema salsugineum

R96
A179
A180
L368
F391


43

Selaginella

R97
G175
S176
L377
F400




moellendorffii



44

Selaginella

R97
G175
S176
L377
F400




moellendorffii



45

Amaranthus

R128
G210
G211






tuberculatus



46

Amaranthus

R128
G210







tuberculatus



47

Zea mays


A67
G68
L262
F285


48

Aegilops tauschii

R30
A96
G97
L291
F314


49

Genlisea aurea

R89
G168
G169




50

Amborella trichopoda




L161
F184


51

Rhodothermus marinus

R87
A162
G163
L330
F353


52

Salinibacter ruber

R87
A161
G162
L330
F353


53

Salinibacter ruber M8

R87
A161
G162
L330
F353


54

Zea mays




L69
F92


55

Rhodothermus marinus

R87
A162
G163
L330
F353


56

Caldithrix abyssi

R86
A160
G161
L329
F352


57

Opitutus terrae PB90-1

R103
A178
G179
L345
M368


58

Verrucomicrobia

R91
A166
G167
L332
Y355




bacterium



59

Ignavibacterium album

R88
A163
G164
L332
F355


60

Coraliomargarita sp.

R88
G163
A164
L331
Y354



CAG: 312


61

Salisaeta longa

R88
A163
G164
L329
F352


62

Ambrosia artemisiifolia

R98
G175
G176




63

Melioribacter roseus

R88
A163
G164
L333
F356



P3M-2


64

Halothiobacillus

R97
A170
G171
L343
F366




neapolitanus c2



65

Chondrus crispus

Y98
S176
G177
L352
Y376


66

Rubritalea marina

R88
A163
G164
L339
M362


67

Acidobacteria bacterium

R88
A161
G162
L330
F353


68

Coraliomargarita

R88
A163
G164
L323
F346




akajimensis DSM 45221



69

Oscillochloris trichoides

R90
S164
G165
L340
L363



DG6


70

Opitutaceae bacterium

R86
A161
G162
L352
L375



TAV1


71

Amborella trichopoda

R87
A173
A174
L230



72

Opitutaceae bacterium

R105
A180
G181
L368
L391



TAV5


73

Chloroflexus sp. Y-400-

R91
A166
G167
L335
L358



fl


74

Leptospirillum sp. Group

R92
A167
S168
L335
F358



II ‘5-way CG’


75

Leptospirillum

R92
A167
S168
L335
F358




ferriphilum ML-04



76

Verrucomicrobia

R89
A165
A166
L334
Y357




bacterium SCGC




AAA300-O17


77

Chloroflexus aggregans

R92
A167
G168
L336
L359



DSM 9485


78

Desulfurobacterium

R86
A161
G162
L333
M356




thermolithotrophum



79

Desulfurobacterium sp.

R90
A165
G166
L332
M355



TC5-1


80

Arthrospira platensis C1

R93
A176
G177
L352
Y375


81

Leptospirillum sp. Group

R92
A167
S168
L335
F358



II ‘C75’


82

Verrucomicrobiae

R87
A164
G165
L332
M355




bacterium DG1235



83

Verrucomicrobia

R89
A165
A166
L334
F357




bacterium SCGC




AAA300-K03


84

Synechococcus sp. JA-

R101
A177
G178
L350
F373



3-3Ab


85

Hymenobacter

R86
A161
G162
A321
F344




norwichensis



86

Pontibacter sp.

R85
G159
G160
S319
Y342



BAB1700


87

Leptospirillum

R92
A172
S173
L339
F362




ferrodiazotrophum



88

Prevotella histicola

C89
A164
G165
L328
F351



F0411


89

Flexithrix dorotheae

R84
A158
G159
A313
F336


90

Geobacter

R93
A168
G169
L342
M365




metallireducens GS-15



91

Synechococcus sp. JA-

R93
A169
G170
L362
F385



2-3B′a(2-13)


92

Crinalium epipsammum

R85
A168
G169
L344
F367



PCC 9333


93

Planctomyces maris

A99
T187
S188
F358
F381


94

Geobacter

R93
A170
G171
L344
M367




uraniireducens Rf4



95

Acidithiobacillus

R87
A162
G163
L323
F346




ferrivorans



96

Prevotella

C88
A163
G164
L327
F350




melaninogenica



97

Thermovibrio

R86
A160
G161
L333
M356




ammonificans



98

Brassica_rapa

R143
A219
G220
L402
Y425


99

Brassica_rapa

R112
A195
A196
L384
F407


100

Gossypium

R146
A222
G223
L405
Y428


101

Gossypium

R98
A180
G181
L370
F393


102

Conyza_canadensis

R142
A218
G219
L401
Y424


103

Conyza_canadensis

R102
G179
G180
L365
F388


104

Kochia_scobaria

R172
A248
G249
L431
F454


105

Lolium_rigidum

R138
A214
G215
L397
Y420


106

Lolium_rigidum

R97
A182
G183
L377
F400


107

Gossypium hirsutum

R146
A222
G223
L405
Y428



PPO1


108

Beta vulgaris PPO1

R167
A243
G244
L426
Y449


109

Hordeum vulgare PPO1

R137
A213
G214
L396
Y419


110

Hordeum vulgare PPO2

R142
A227
G228
L422
F445


111

Triticum aestivum PPO1

R138
A214
G215
L397
Y420


112

Solarium lycopersicum

R95
G175
G176
L366
F389



PPO2


113

Triticum aestivum

R153
A229
G230
L412
Y435



PPO1_v2


114

Gossypium hirsutum

R146
A222
G223
L405
Y428



PPO1_v2


115

Gossypium hirsutum

R98
A180
G181
L370
F393



PPO2


116

Beta vulgaris PPO1_v2

R167
A243
G244
L426
Y449


117

Brassica napus_PPO2

R99
A182
A183
L371
F394


637

Oryza sativa_PPO2

R139

G225
L419
F442
















TABLE 2a-2







Additional single amino acid substitutions within


reference to SEQ ID NO 1, or 637










SEQ

Mutated
Mutated


ID
Organism
site 6
site 7





 1

Amaranthus
tuberculatus

G398
L400


637

Oryza
sativa_PPO2

G420
L422









In a further particularly preferred embodiment, the variant or derivative of the mutated PPO refers to SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, or 637, comprising a single amino acid substitutions at the positions depicted in the following Table 2b.


It should be noted that Mutated site 1 of Table 2a) corresponds to Pos 1 of Table 2b); Mutated site 2 of Table 2a) corresponds to Pos 16 of Table 2b); Mutated site 3 of Table 2a) corresponds to Pos 17 of Table 2b); Mutated site 4 of Table 2a) corresponds to Pos 15 38 of Table 2b); Mutated site 5 of Table 2a) corresponds to Pos 42 of Table 2b).



















TABLE 2b








Pos
Pos
Pos
Pos
Pos
Pos
Pos
Pos
Pos
Pos


ID
1
2
3
4
5
6
7
8
9
10





1
R128
Y129
A131
S149
I151
A154
P164
K169
E182
S183


2
R128
Y129
A131
S149
I151
A154
P164
K169
E182
S183


3
R128
Y129
A131
S149
I151
A154
P164
K169
E182
S183


4
R128
Y129
A131
S149
I151
A154
P164
K169
E182
S183


5
R128
Y129
A131
S149
I151
A154
P164
K169
E182
S183


6
R98
Y99
A101
S119
I121
A124
P134
K139
E152
S153


7
R127
Y128
A130
S148
I150
A153
P163
K168
E181
S182


8
R100
Y101
V103
S121
I123
A126
P136
K141
E154
S155


9
R99
Y100
V102
S120
I122
A125
P135
K140
E153
S154


10
R98
Y99
V101
S119
I121
A124
P134
K139
E152
S153


11
R98
Y99
V101
S119
L121
A124
P134
R139
E152
S153


12
R96
Y97
V99
S117
F119
A122
P132
D137
E147
S148


13
R98
Y99
V101
S119
L121
A124
P134
R139
E152
S153


14
R98
Y99
A101
S119
F121
T124
P134
K139
E149
S150


15
R98
Y99
V101
S119
F121
A124
P134
K139
E152
S153


16
R98
Y99
V101
S119
F121
A124
P134
K139
E152
S153


17
R98
Y99
V101
S119
L121
A124
P134
R139
E152
S153


18
R98
Y99
V101
S119
F121
A124
P134
K139
E152
S153


19
R93
Y94
V96
S114
F116
A119
P129
K134
E147
S148


20
R98
Y99
A101
S119
F121
T124
P134
N139
E150
S151


21
R95
Y96
A98
S116
F118
T121
P131
N136
E147
S148


22
R101
Y102
V104
S122
V124
T127
P137
K142
E154
S155


23
R103
Y104
V106
S124
V126
T129
P139
K144
E158
S159


24
R101
Y102
V104
S122
V124
T127
P137
K142
E154
S155


25
R147
Y148
V150
S168
V170
T173
P183
K188
E200
S201


26
R74
Y75
V77
S95
F97
T100
P110
K115
E123
S124


27
R128
Y129
V131
S149
V151
T154
P164
K169
E185
S186


28
R130
Y131
V133
S151
V153
T156
P166
K171
E187
S188


29
R101
Y102
V104





E124
S125


30
R130
Y131
V133
S151
V153
T156
P166
K171
E187
S188


31
R130
Y131
V133
S151
V153
T156
P166
K171
E187
S188


32
R105
Y106
V108
S126
L128
T131
P141
R146
E160
S161


33
R150
F151
L153
F171
L173
I176
A186
P191
E201
E202


34
R100
Y101
V103
S121
F123
A126
P136
K141
E154
S155


35
R165
Y166
V168
S186
V188
T191
P201
K206
E220
S221


36
R134
Y135
V137
S155
V157
T160
P170
K175
E191
S192


37
R95
Y96
V98
S116
V118
T121
P131
K136
E152
S153


38
R100
Y101
V103
S121
T123
A126
P136
H141
E158
S159


39
R98
Y99
A101
S119
F121
T124
P134
N139
E150
S151


40
R139
Y140
V142
S160
V162
T165
P175
K180
E196
S197


41
R139
Y140
V142
S160
V162
T165
P175
K180
E196
S197


42
R96
Y97
V99
S117
V119
T122
P132
K137
E151
S152


43
R97
Y98
V100
T118
L120
A123
P133
R138
E147
S148


44
R97
Y98
V100
T118
L120
A123
P133
R138
E147
S148


45
R128
Y129
A131
S149
I151
A154
P164
K169
E182
S183


46
R128
Y129
A131
S149
I151
A154
P164
K169
E182
S183


47



S3
V5
T8
P18
K23
E39
S40


48
R30
Y31
V33



P47
K52
E68
S69


49
R89
Y90
V92
S110
I112
S115
P125
Q130
E140
S141


50












51
R87
F88
V90
T108
L110
P113
P123
H126
A137
K138


52
R87
Y88
V90
T108
L110
T113
P123
G126
A136
R137


53
R87
Y88
V90
T108
L110
T113
P123
G126
A136
R137


54












55
R87
F88
V90
T108
L110
P113
P123
H126
A137
K138


56
R86
Y87
V89
T107
L109
W112
P122
P125
A135
D136


57
R103
Y104
V106
S124
L126
P129
L139
R142
A153
E154


58
R91
Y92
I94
T112
L114
L117
P127
A130
A141
A142


59
R88
Y89
L91
T109
L111
A114
P124
G127
A138
E139


60
R88
F89
A91
T109
L111
F114
P124
K127
A138
D139


61
R88
F89
V91
T109
L111
T114
P124
A127
A138
S139


62
R98
Y99
V101
S119
F121
T124
P134
K139
E147
S148


63
R88
Y89
L91
T109
L111
S114
P124
S127
A138
E139


64
R97
F98
A100
S118
L120
M123
A133
K136
A145
E146


65
Y98
Y99
M101
T119
L121
W124
P134
L139
S149
V150


66
R88
F89
I91
S109
I111
L114
P124
K127
A138
D139


67
R88
Y89
V91
S109
L111
W114
P124
G127
A136
D137


68
R88
Y89
V91
T109
L111
I114
P124
K127
A138
D139


69
R90
Y91
L93
M111
H113
M116
P126
P129
A139
S140


70
R86
F87
V89
T107
L109
L112
L122
R125
G136
E137


71
R87
F88
A90
S108
L110
P113
P123
S128
E145
S146


72
R105
F106
V108
T126
L128
L131
L141
R144
G155
E156


73
R91
F92
L94
T112
L114
W117
P127
N130
A141
A142


74
R92
Y93
V95
T113
L115
W118
W128
P131
S142
H143


75
R92
Y93
V95
T113
L115
W118
W128
P131
S142
H143


76
R89
F90
I92
S110
F112
P115
P125
G128
A140
E141


77
R92
Y93
L95
T113
L115
W118
P128
N131
A142
A143


78
R86
F87
Y89
S107
L109
W112
F122
P125
S136
E137


79
R90
F91
F93
S111
V113
F116
Y126
P129
S140
S141


80
R93
Y94
Y96
S114
L116
A119
A129
P134
T151
Q152


81
R92
Y93
V95
T113
L115
W118
W128
P131
S142
H143


82
R87
Y88
V90
T108
L110
L113
P123
K126
A139
S140


83
R89
F90
I92
S110
F112
P115
P125
G128
A140
E141


84
R101
Y102
Y104
S122
L124
V127
L137
P142
R152
Q153


85
R86
Y87
L89
N107
F109
W112
L122
A126
D136
A137


86
R85
Y86
L88
N106
L108
N111
R121
A126
S134
D135


87
R92
F93
L95
T113
I115
L118
P128
P131
A147
D148


88
C89
R90
I92
T111
L113
L116
P126
R129
G139
A140


89
R84
Y85
F87
N105
F107
W110
L120
T125
A133
D134


90
R93
F94
Y96
S114
L116
W119
P129
S132
A143
S144


91
R93
Y94
Y96
S114
L116
V119
L129
A134
R144
Q145


92
R85
F86
Y88
S106
L108
L111
A121
P126
A143
Q144


93
A99
L100
L102
T128
L130
P133
Y143
P146
A162
Q163


94
R93
F94
Y96
S114
L116
W119
P129
A134
A145
A146


95
R87
Y88
L90
G107
L109
W112
P122
S125
A137
D138


96
C88
R89
I91
T110
L112
L115
P125
K128
G138
S139


97
R86
F87
Y89
S107
L109
W112
L122
P125
A135
E136


98
R143
F144
L146
F164
L166
I169
A179
P184
E191
S192


99
R112
Y113
V115
S133
V135
T138
P148
K153
E167
S168


100
R146
F147
L149
F167
L169
I172
A182
P187
E194
S195


101
R98
Y99
V101
S119
I121
A124
P134
K139
E152
S153


102
R142
F143
L145
F163
L165
L168
A178
P183
E190
S191


103
R102
Y103
V105
S123
L125
T128
P138
K143
E151
S152


104
R172
F173
L175
F193
L195
F198
A208
P213
E220
S221


105
R138
F139
L141
F159
L161
I164
A174
P179
E186
S187


106
R97
Y98
V100
S118
L120
T123
P133
K138
E154
S155


107
R146
F147
L149
F167
L169
I172
A182
P187
E194
S195


108
R167
F168
L170
F188
L190
I193
A203
P208
E215
S216


109
R137
F138
L140
F158
L160
V163
A173
P178
E185
S186


110
R142
Y143
V145
S163
V165
T168
P178
K183
E199
S200


111
R138
F139
L141
F159
L161
I164
A174
P179
E186
S187


112
R95
Y96
A98
S116
F118
T121
P131
N136
E147
S148


113
R153
F154
L156
F174
L176
I179
A189
P194
E201
S202


114
R146
F147
L149
F167
L169
I172
A182
P187
E194
S195


115
R98
Y99
M101
S119
I121
A124
P134
N139
E152
S153


116
R167
F168
L170
F188
L190
I193
A203
P208
E215
S216


117
R99
Y100
V102
S120
V122
T125
P135
N141
E154
S155























Pos
Pos
Pos
Pos
Pos
Pos
Pos
Pos
Pos
Pos



ID
11
12
13
14
15
16
17
18
19
20







1
E189
F196
D202
C209
G210
G211
L216
M218
H219
H220



2
E189
F196
D202
C209
G210
G211
L216
M218
H219
H220



3
E189
F196
D202
C209
G210

L215
M217
H218
H219



4
E189
F196
D202
C209
G210

L215
M217
Y218
H219



5
E189
F196
D202
C209
G210
G211
L216
V218
H219
H220



6
E159
F166
D172
C179
G180
G181
L186
M188
H189
H190



7
E188
F195
D201
S208
G209
G210
L215
M217
R218
H219



8
Q161
V168
D174
S181
G182
G183
L188
M190
H191
H192



9
Q160
V167
D173
S180
A181
G182
L187
V189
C190
H191



10
Q159
V166
D172
S179
A180
G181
L186
M188
R189
H190



11
E159
V166
D172
S179
A180
A181
L186
M188
R189
H190



12
Q154
V161
D167
S174
A175
G176
L181
M183
R184
H185



13
E159
V166
D172
S179
A180
A181
L186
I188
R189
H190



14
Q156
V163
D169
S176
A177
G178
L183
M185
P186
H187



15
Q159
V166
D172
S179
A180
A181
L186
M188
R189
H190



16
Q159
V166
D172
S179
A180
A181
L186
M188
R189
H190



17
E159
V166
D172
S179
A180
A181
L186
M188
R189
H190



18
Q159
V166
D172
S179
A180
G181
L186
M188
S189
H190



19
Q154
V161
D167
S174
A175
G176
L181
M183
S184
H185



20
Q157
V164
D170
C177
G178
G179
L184
M186
H187
H188



21
Q154
V161
D167
C174
G175
G176
L181
M183
H184
L185



22
Q161
V168
D174
S181
A182
A183
L188
M190
K191
H192



23
Q165
V172
D178
S185
A186
A187
L192
M194
K195
H196



24
Q161
V168
D174
S181
A182
A183
L188
M190
K191
H192



25
Q207
V214
D220
S227
A228
A229
L234
M236
K237
H238



26
Q130
V137
D143
S150
G151
G152
L157
M159
R160
H161



27
E192
V199
D205
S212
A213
G214
L219
I221
R222
H223



28
E194
V201
D207
S214
A215
G216
L221
I223
C224
H225



29
Q131
V138
D144
S151
A152
A153
L158
M160
K161
H162



30
E194
V201
D207
S214
A215
G216
L221
I223
R224
H225



31
E194
V201
D207
S214
A215
G216
L221
I223
R224
H225



32
Q167
V174
D180
S187
G188
G189
L194
M196
P197
H198



33

V212
E218
Y225
A226
G227
L232
M234
K235
A236



34
Q161
V168
D174
S181
A182
G183
L188
A190
R191
H192



35
R227
V234
D240
S247
A248
A249
L254
M277
K278
H279



36
E198
V205
D211
S218
A219
G220
L225
1227
R228
H229



37
C158
V165
D171
S178
G179
G180
L185
I187
R188
H189



38
R165
V172
D178
A185
G186
A187
L192
I194
R195
H196



39
Q157
V164
D170
C177
G178
G179
L184
M186
H187
L188



40
C213
V220
D229
S233
G234
G235
L240
I242
R243
H244



41
C213
V220
D229
S233
G234
G235
L240
I242
R243
H244



42
Q158
V165
D171
S178
A179
A180
L185
M187
K188
H189



43
E154
I161
D167
S174
G175
S176
I181
I183
R184
H185



44
E154
I161
D167
S174
G175
S176
I181
I183
R184
H185



45
E189
F196
D202
C209
G210
G211
L216
M218
H219
H220



46
E189
F196
D202
C209
G210

L215
M217
H218
H219



47
E46
V53
D59
S66
A67
G68
L73
I75
R76
H77



48
E75
V82
D88
S95
A96
G97
L102
I104
R105
H106



49
Q147
V154
D160
S167
G168
G169
L174
M176
R177
H178



50













51

V148
E154
F161
A162
G163
L168
V170
R171
Y172



52

V147
A153
F160
A161
G162
L167
V169
Q170
H171



53

V147
A153
F160
A161
G162
L167
V169
Q170
H171



54













55

V148
E154
F161
A162
G163
L168
V170
R171
Y172



56

F146
N152
Y159
A160
G161
L166
A168
P169
A170



57

F164
N170
Y177
A178
G179
L184
A186
R187
Q188



58

F152
N158
Y165
A166
G167
L172
V174
Q175
H176



59

F149
N155
Y162
A163
G164
L169
V171
K172
S173



60

V149
N155
Y162
G163
A164
L169
I171
K172
H173



61

V149
D155
F162
A163
G164
L169
L171
K172
H173



62
Q154
V161
D167
S174
G175
G176







63

F149
D155
F162
A163
G164
L169
V171
K172
S173



64

F156
D162
Y169
A170
G171
L176
V178
Q179
A180



65
Q155
V162
D168
Y175
S176
G177
L182
M184
K185
H186



66

P149
N155
Y162
A163
G164
L169
V171
E172
H173



67

F147
N153
Y160
A161
G162
L167
V169
R170
F171



68

L149
N155
Y162
A163
G164
L169
L171
R172
Y173



69

V150
D156
Y163
S164
G165
M170
I172
K173
A174



70

L147
D153
Y160
A161
G162
L167
A169
R170
Y171



71
Q152
V159
D165
S172
A173
A174
L179






72

L166
D172
Y179
A180
G181
L186
A188
R189
Y190



73

A152
D158
Y165
A166
G167
L172
T174
A175
A176



74

A153
D159
Y166
A167
S168
L173
V175
E176
A177



75

A153
D159
Y166
A167
S168
L173
V175
E176
A177



76

V151
N157
Y164
A165
A166
L171
L173
K174
Y175



77

A153
D159
Y166
A167
G168
L173
A175
A176
A177



78

A147
D153
F160
A161
G162
L167
L169
K170
A171



79

A151
D157
F164
A165
G166
L171
V173
K174
A175



80

V162
Q168
Y175
A176
G177
L182
V184
R185
S186



81

A153
D159
Y166
A167
S168
L173
V175
E176
A177



82

F150
D156
Y163
A164
G165
L170
L172
E173
H174



83

V151
N157
Y164
A165
A166
L171
L173
K174
Y175



84

V163
E169
Y176
A177
G178
L183
A185
V186
A187



85

I147
N153
Y160
A161
G162
L167
I169
H170
K171



86

Q145
A151
Y158
G159
G160
L165
V167
N168
K169



87

F158
D164
Y171
A172
S173
L178
M180
A181
D182



88

F150
D156
Y163
A164
G165
L170
T172
R173
L174



89

I144
N150
Y157
A158
G159
L164
M166
E167
K168



90

A154
S160
F167
A168
G169
M174
L176
R177
S178



91

V155
E161
Y168
A169
G170
L175
A177
L178
A179



92

V154
A160
Y167
A168
G169
L174
A176
R177
S178



93

A173
Q179
Y186
T187
S188
L193
L195
R196
A197



94

A156
A162
F169
A170
G171
M176
L178
V179
S180



95

A148
D154
F161
A162
G163
L168
V170
Q171
A172



96

F149
D155
Y162
A163
G164
L169
T171
R172
L173



97

A146
D152
F159
A160
G161
M166
L168
K169
A170



98
R198
V205
E211
Y218
A219
G220
L225
M227
K228
A229



99
Q174
V181
D187
S194
A195
A196
L201
M203
K204
H205



100
R201
V208
E214
Y221
A222
G223
L228
M230
K231
A232



101
Q159
V166
D172
S179
A180
G181
L186
M188
C189
H190



102
R197
V204
E210
Y217
A218
G219
L224
M226
K227
A228



103
Q158
V165
N171
S178
G179
G180
L185
M187
R188
Y189



104
R227
V234
E240
Y247
A248
G249
L254
M256
K257
A258



105
R193
V200
E206
Y213
A214
G215
L220
M222
R223
A224



106
E161
V168
D174
S181
A182
G183
L188
I190
R191
H192



107
R201
V208
E214
Y221
A222
G223
L228
M230
K231
A232



108
R222
V229
E235
Y242
A243
G244
L249
M251
K252
A253



109
R192
V199
E205
Y212
A213
G214
L219
M221
K222
A223



110
E206
V213
D219
S226
A227
G228
L233
I235
R236
H237



111
R193
V200
E206
Y213
A214
G215
L220
M222
K223
A224



112
Q154
V161
D167
C174
G175
G176
L181
M183
H184
L185



113
R208
V215
E221
Y228
A229
G230
L235
M237
K238
A239



114
R201
V208
E214
Y221
A222
G223
L228
M230
K231
A232



115
Q159
V166
D172
S179
A180
G181
L186
M188
C189
H190



116
R222
V229
E235
Y242
A243
G244
L249
M251
K252
A253



117
Q161
V168
D174
S181
A182
A183
L188
M190
K191
H192






















Pos
Pos
Pos
Pos
Pos
Pos
Pos
Pos
Pos
Pos


ID
21
22
23
24
25
26
27
28
29
30





1
N227
S234
S246
K259
P260
R261
L295
Q301
G308
S324


2
N227
S234
S246
K259
P260
R261
L295
Q301
G308
S324


3
N226
S233
S245
K258
P259
R260
L294
Q300
G307
S323


4
N226
S233
S245
K258
P259
R260
L294
Q300
G307
S323


5
N227
S234
S246
K260
P261
R262
L296
Q302
G309
S325


6
N197
S204
S216
K230
P231
R232
L266
Q272
G279
S295


7
N226
S233
S245
K259
P260
R261
L295
H301
E308
P324


8
N199
S206
A218
K232
K234
R235
L269
H275
E282
S300


9
N198
S205
T217
K231
K233
Q234
F268
P274
E281
S299


10
D197
S204
A216
K229
K231
P232
L266
H272
E279
S297


11
N197
S204
A216
K230
K232
H233
L267
H273
Q280
D294


12
N192
S199
A211
K225
K227
R228
L262
Q268
E275
S293


13
N197
S204
G216
K230
K232
H233
L267
H273
Q280
D294


14
N194
S201
S213
K227
K229
R230
L264
H270
E277
S295


15
N197
S204
A216
K230
H232
R233
L267
H273
E280
S297


16
N197
S204
A216
K230
H232
R233
L267
H273
E280
S297


17
N197
S204
G216
K230
K232
H233
L267
H273
E280
D294


18
N197
S204
T216
K230
K232
P233
L267

Q279
I295


19
N192
S199
T211
K225
K227
P228
L262

Q274
I290


20
N195
S202
P214
N228
K230
R231
L265
C271
D278
S296


21
N192
S199
P211
N225
K227
R228
L262
C268
D275
S293


22
N199
S206
A218
T232
K234
G235
L269

E280
H298


23
N203
S210
A222
T236
R238
G239
L273

E284
H302


24
N199
S203
A215
T229
K231
G232
L266

E277
H295


25
N245
S249
A261
T275
K277
G278
L312

E323
H341


26
D168
S175
S187
N197
K199
R200
L234
C240
G246
S263


27
N230
S237
A249
K263
R265
N266
L300
F306
G313
T334


28
N232
S239
A251
K265
R267
N268
L302
L308
G315
T336


29
N169
S176
A188
T202
K204
G205
L239

E250
H268


30
N232
S239
A251
K265
R267
N268
L302
F308
G315
T336


31
N232
S239
A251
K265
R267
N268
L302
F308
G315
T336


32
N205
S212
D224
K238
R240

L274
H280
D287
F308


33
K243
S250
R262
P275
P277
K278
G312
N318
Y325
N335


34
N199
S206
A218
K232
K234
R235
L269
Y275
E282
S300


35
N286
S293
A305



L331

E342
H360


36
D236
S243
A255
K269
R271
N272
L306
C312
D319
L340


37
N196
S203
T215
K229
R231
N232
L266
C272
G279
S300


38
D203
S210
R222
Q236
K237
R238
L272
L278
N285
S306


39
N195
S202
P214
N228
K230
R231
L265
C271
D278
S296


40
N251
S258
T270
K284
R286
N287
L321
C327
G334
S355


41
N251
S258
T270
K284
R286
N287
L321
C327
G334
S355


42
N196
S203
A215
T229
K231
G232
L266

E277
H295


43
S192
S199
K211
T233
P235
R236
T270
Q276
Q283
T303


44
S192
S199
K211
T233
P235
R236
T270
Q276
Q283
T303


45
N227











46
N226











47
N84
S91
A103
K117
R119
N120
L154
F160
G167
T188


48
N113
S120
A132
K146
R148
S149
L183
C189
D196
S217


49
N185
S192
A204
N218
R220
R221
L255
N261
D268
G287


50


S3
K17
K19
H20
L54
D60
S67
S88


51
E179
S186


A203
P204
L238

P247
F262


52
A178
S185


D204
T205
H238

W247
S262


53
A178
S185


D204
T205
H238

W247
S262


54












55
E179
S186


A203
P204
L238

P247
F262


56
N177
S184
R196

K204
D205
R238


F261


57
E195
S202
R214

E219
P220
D254

K261
S276


58
A183
S190
R202

K210
D211
E244


S263


59
A180
G187
R199

K207
Q208
I241


V264


60
N180
S187

G203
F205
F206
I239
S243




61
E180
S187
G199

A207
T208
T241

T250



62












63
R180
G187
R199

K207
Q208
L241

Q250
T265


64
A187
S194
A206


A217
D250
I256
G263
H275


65
R193
S200
T212
T222
K224
E225
T259
T265
G272



66
Q180
S187
Q199
H207
L209
Q210
G244
R250

S270


67
A178
G185
R197

K205
I206
L239


R262


68
A180
G187

G204
K206
A207
E240
Q244




69
E181
S188
K200
G212
K214
M215
T249

G257
E272


70
E178
S185
R197
P209
P211
P212
V246
V252
A257
R283


71






T184
C190
L197



72
E197
S204
R216
P228
P230
P231
V265
V271
A276
R299


73
E183
S190
K202

K209
M210
V244

W252
I267


74
R184
G191
R203
G209
S211
P212
V243

G252
T267


75
R184
G191
R203
G209
S211
P212
V243

G252
T267


76
D182
S189

E203
I205
S206
K239
K244

V264


77
E184
S191
K203

K210
M211
V245

Y253
T268


78
Y178
G185
A197
P206
G208
P209
I241

G250
T265


79
H182
G189
K201
T205
G207
P208
V240

K249
S264


80
A193
G200
K212
P224
T226
R227
R261
H267
F274
E284


81
R184
G191
R203
G209
A211
P212
V243

G252
T267


82
G181
S188

G204
A206
Y207
V240
R244

F263


83
D182
S189

E203
I205
S206
K239
K244

V264


84
G194
S201

P223
P225
K226
Q260
G265
F272
A282


85
A178
S185
A197


G198
L232
G238
S245
S253


86
E176
S183
G195


V196
F229
G235
A242
E251


87
Q189
S196
Q207
P213
F215
A216
V247

G256
R271


88
N181
S188
P200

R207
A208
L242
G248
K250
I261


89
E175
S182
T194


Q195
E227
G233

K245


90
E185
S192
K204
A217
G219
P220
V253


D274


91
G186
S193
R205
P226
P228
K229
H263
E268
F275
A294


92
Q185
G192
R204
P216
V218
R219
E253
N259
F266
E276


93
D204
S211
T223
T229
A231
R232
V266

G275
H290


94
E187
G194
K206
A219
G221
P222
V255


D276


95
A179
S186
A194



E236

S244
Q255


96
D180
S187
P199

R206
A207
L241
G247
K249
I260


97
R177
G184
A196
P206
G208
P209
V241

K250
E265


98
K236
S243
A254
K269
P270
K271
S304

G312



99
N212
S219
A231
K246
K247
G248
L282
T288
E293
H311


100
K239
S246
E257
K272
P273
K274
S307

G315



101
D197
S204
A216
R230
K231
A232
L266
H272
E279
S297


102
K235
S242
A253
T268
P269
K270
V303

R311



103
D196
S203
S215
S226
K227
R228
L262
C268
G274
P292


104
V265
N272
E283
K298
P299
K300
A333

G341



105
R231
S238
D249
T264
P265
K266
T299

Q307



106
N199
S206
A218
G233
R234
N235
L269
C275
N282
P303


107
K239
S246
R258
K272
P273
K274
S307
G313
T320
S334


108
K260
S267
R279
K293
P294
K295
S328
L334
T341
S355


109
R230
S237
K249
A263
P264
K265
T298
D304
G311
S325


110
N244
S251
A263
G278
R279
N280
L314
C320
D327
S348


111
R231
S238
K250
A264
P265
K266
T299
D305
G312
S326


112
N192
S199
P211
K226
K227
R228
L262
C268
D275
S293


113
R246
S253
K265
A279
P280
K281
T314
D320
G327
S341


114
K239
S246
R258
K272
P273
K274
S307
G313
T320
S334


115
D197
S204
A216
R230
K231
A232
L266
H272
E279
S297


116
K260
S267
R279
K293
P294
K295
S328
L334
T341
S355


117
N199
S206
A218
K233
K234
G235
L269
A275
E280
H298























Pos
Pos
Pos
Pos
Pos
Pos
Pos
Pos
Pos
Pos



ID
31
32
33
34
35
36
37
38
39
40







1
R335
G346
F349
L351
D352
T358
L384
L397
F417
T418



2
R335
G346
F349
L351
D352
T358
L384
L397
F417
T418



3
R334
G345
F348
L350
D351
T357
L383
L396
F416
T417



4
R334
G345
F348
L350
D351
T357
L383
L396
F416
T417



5
R336
G347
F350
L352
D353
T359
L385
L398
F418
T419



6
R306
G317
F320
L322
D323
S329
L355
L368
F388
T389



7
N335
E346
F349
L351
D352
S358
L384
L397
Y417
T418



8
C311
G322
F325
L327
D328
S334
L360
L373
Y393
T394



9
C310
R321
F324
L326
N327
S333
L359
L372
Y392
T393



10
C308
G319
F322
L324
N325
S331
L357
L370
Y390
T391



11
Y305
G316
F319
L321
N322
S328
L354
L367
Y387
T388



12
C304
G315
F318
L320
D321
V327
L353
L366
Y386
T387



13
G305
G316
F319
L321
N322
T328
L354
L367
Y387
T388



14
C306
G317
F320
L322
D323
N329
L355
L368
Y388
T389



15
C308
G319
F322
L324
D325
I331
L357
L370
Y390
T391



16
C308
G319
F322
L324
D325
I331
L357
L370
Y390
T391



17
G305
G316
F319
L321
N322
T328
L354
L367
Y387
T388



18
C306
G317
F320
L322
N323
A329
L355
L368
Y388
T389



19
C301
G312
F315
L317
N318
A324
L350
L363
Y383
T384



20
C307
G318
F321
L323
N324
D330
L356
L369
Y389
T390



21
C304
G315
F318
L320
N321
D327
L353
L366
Y386
T387



22
C309
G320
F323
L325
N326
N332
L358
L371
Y391
T392



23
C313
G324
F327
L329
N330
N336
L362
L375
Y395
T396



24
C302
G313
F316
L318
N319
N325
L351
L364
Y384
T385



25
C348
G359
F362
L364
N365
N371
L397
L410
Y430
T431



26
N274
G285
F288
L290
N291
S297
L323
L336
Y356
T357



27
S345
G356
F359
L361
D362
N368
L394
L408
Y428
T429



28
S347
G358
F361
L363
D364
D370
L396
L410
Y430
T431



29
C279
G290
F293
L295
N296
N302
L328
L341
Y361
T362



30
S347
G358
V361
L363
D364
D370
L396
L410
Y430
T431



31
S347
G358
V361
L363
D364
D370
L396
L410
Y430
T431



32
G319
G330
F333
L335
D336
T342
L368
L381
Y401
T402



33
Y346

N357
A359
A360
Y367
L399
L409
L429
L430



34
C311
R322
F325
L327
D328
S334
L360
L373
Y393
T394



35
C371
G382
F385
L387
N388
K394
L420
L433
Y453
T454



36
S351
G362
F365
L367
D368
D374
L400
L414
F434
T435



37
S311
G322
F325
L327
D328
D334
L360
L374
Y394
T395



38





T315
L341
L354
F374
T375



39
C307
G318
F321
L323
N324
D330
L356
L369
Y389
T390



40
S366
G377
F380
L382
D383
D389
L415
L429
Y449
T450



41
S366
G377
F380
L382
D383
D389
L415
L429
Y449
T450



42
C306
G317
F320
L322
N323
K329
L355
L368
Y388
T389



43
D314
G325
Y328
L330
D331
I337
L363
L377
F397
T398



44
D314
G325
Y328
L330
D331
I337
L363
L377
F397
T398



45













46













47
S199
G210
V213
L215
D216
D222
L248
L262
Y282
T283



48
S228
G239
F242
L244
D245
D251
L277
L291
F311
T312



49
S298












50
R99
G110
Y113
L115
D116
M122
L148
L161
Y181
T182



51
H273
P282
D285

R286
E293
L319
L330
L350
T351



52
H273
T282
D285

L286
T293
L319
L330
L350
T351



53
H273
T282
D285

L286
T293
L319
L330
L350
T351



54
S6
G17
V20
L22
D23
D29
L55
L69
Y89
T90



55
H273
P282
D285

R286
E293
L319
L330
L350
T351



56
Y272
S280
K283
R285
A286
L293
L319
L329
F349
T350



57
P287
T296
E299
P301
L302
E309
L335
L345
L365
T366



58
H274
D283
D286
D288
M289
I296
L322
L332
L352
S353



59
Y275
K283
K286
F288
K289
Y296
L322
L332
F352
T353



60
P273
M283
A286
L288
A289
Q295
L321
L331
L351
T352



61
H272
P281
D284

T285
P292
L318
L329
L349
T350



62













63
Y276
E284
Q287
L289
A290
Y297
L323
L333
F353
T354



64
H286

G297
L299
A300
E307
L333
L343
L363
S364



65
H292
A303
K306
F308
K309
K316
L342
L352
L373
T374



66
H281
E290
L293
S295
L296
D303
L329
L339
I359
N360



67
Y273
R281
P284
A286
A287
V294
L320
L330
L350
T351



68
H270

E278
P280
I281
D287
L313
L323
L343
T344



69
Y283

P294
A296
A297
R304
L330
L340
T360
I361



70
E294
A303
E306
P308
L309
E316
L342
L352
L372
T373



71
S213






L230





72
E310
A319
E322
P324
L325
E332
L358
L368
L388
T389



73
F278

Q289
A291
A292
P299
L325
L335
T355
T356



74
P278

D289
P291
S292
P299
L325
L335
L355
T356



75
P278

D289
P291
S292
P299
L325
L335
L355
T356



76
H275
I285
S288
L290
L291
Y298
L324
L334
L354
T355



77
Y279

P290
A292
A293
P300
L326
L336
T356
I357



78
Y276

L287
L289
S290
E297
L323
L333
I353
R354



79
Y275

E286
L288
A289
E296
L322
L332
I352
R353



80
H295

S306
I308
A309
P316
L342
L352
L372
S373



81
P278

E289
P291
S292
P299
L325
L335
L355
T356



82
H274
E283
A286
P288
L289
E296
L322
L332
L352
T353



83
H275
I285
S288
L290
L291
Y298
L324
L334
L354
T355



84
Y293

P304
A306
S307
L314
L340
L350
F370
L371



85
F264

P275
A277
A278
H285
L311
A321
F341
T342



86
H262

P273
M275
S276
N283
L309
S319
I339
T340



87
A282

P293
I295
P296
P303
L329
L339
L359
T360



88
Y272

K283
Q285
L286
Y293
L318
L328
Y348
A349



89
Y256

P267
S269
A270
N277
L303
A313
I333
T334



90
H285

A296
M298
A299
P306
L332
L342
L362
R363



91
Y305

P316
A318
S319
P326
L352
L362
L382
I383



92
Y287

P298
A300
S301
P308
L334
L344
L364
T365



93
P301

P312
L314
S315
E322
V348
F358
L378
R379



94
Y287

G298
M300
S301
P308
L334
L344
L364
R365



95
G266

A277
L279
A280
P287
L313
L323
L343
T344



96
Y271

K282
Q284
L285
Y292
L317
L327
Y347
A348



97
Y276

R287
L289
S290
E297
L323
L333
I353
R354



98

L348
S351
A353
E354
Y360
L386
L402
L422
L423



99
C322
G333
F336
L338
N339
K345
L371
L384
Y404
T405



100

L351
A354
A356
D357
Y363
L389
L405
L425
L426



101
C308
G319
F322
L324
N325
S331
L357
L370
Y390
T391



102

L347
E350
A352
D353
Y359
L385
L401
L421
L422



103
G303
G314
F317
L319
N320
S326
L352
L365
Y385
T386



104

F377
A380
A382
D383
H389
L415
L431
I451
L452



105

L343
D346
A348
D349
Y355
L381
L397
L417
L418



106
S314
G325
F328
L330
D331
D337
L363
L377
F397
T398



107
S345
A356
L359
Q361
F362
A368
L395
L405
L425
L426



108
S366
A377
L380
K382
F383
A389
L416
L426
I446
L447



109
S336
A347
L350
K352
F353
A359
L386
L396
L416
L417



110
S359
G370
F373
L375
D376
D382
L408
L422
F442
T443



111
S337
A348
L351
K353
F354
A360
L387
L397
L417
L418



112
C304
G315
F318
L320
N321
D327
L353
L366
Y386
T387



113
S352
A363
L366
K368
F369
A375
L402
L412
L432
L433



114
S345
A356
L359
Q361
F362
A368
L395
L405
L425
L426



115
C308
G319
F322
L324
N325
S331
L357
L370
Y390
T391



116
S366
A377
L380
K382
F383
A389
L416
L426
I446
L447



117
C309
G320
F323
L325
N326
K332
L358
L371
Y391
T392




























Pos
Pos
Pos
Pos
Pos
Pos
Pos
Pos
Pos
Pos
Pos
Pos
Pos
Pos
Pos
Pos


ID
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56





1
T419
F420
A432
T434
K438
L449
T451
F462
Y470
S476
V477
D482
Y493
K498
E515
K528


2
T419
F420
A432
T434
K438
L449
T451
F462
Y470
S476
V477
D482
Y493
K498
E515
K528


3
T418
F419
A431
T433
K437
L448
T450
F461
Y469
C475
V476
D481
Y492
K497
E514
K527


4
T418
F419
A431
T433
K437
L448
T450
F461
Y469
S475
V476
D481
Y492
K497
E514
K527


5
T420
F421
A433
T435
K439
L450
T452
F463
Y471
S477
V478
D483
Y494
K499
E516
K529


6
T390
F391
A403
T405
K409
L420
T422
F433
Y441
S447
V448
D453
Y464
K469
E486
K499


7
T419
F420
A432
T434
K438
L449
T451
Y462
Y470
S476
V477
E482
Y493
K498
E515
K525


8
T395
F396
A408
T410
K414
L425
A427
Y438
F446
S452
V453
D458
Y469
K474
D491
K504


9
T394
F395
A407
T409
K413
L424
A426
Y437
Y445
A451
V452
D457
Y468
K473
D490
K503


10
T392
F393
A405
T407
K411
L422
V424
Y435
Y443
S449
V450
E455
Y466
K471
D488
K500


11
T389
F390
A402
T404
R408
L419
A421
Y432
Y440
S446
V447
D452
F463
K468
D485
T498


12
T388
F389
A401
T403
K407
L418
A420
Y431
Y439
S445
V446
E451
Y462
R467
E484
K497


13
T389
F390
A402
T404
T408
L419
A421
F432
Y440
S446
V447
D452
Y463
R468
D485
S498


14
T390
F391
A403
K405
K409
L420
A422
Y433
Y441
S447
V448
E453
Y464
R469
D486
K499


15
T392
F393
A405
T407
K411
L422
V424
F435
Y443
S449
V450
E455
Y466
K471
E488
K501


16
T392
F393
A405
T407
K411
L422
V424
F435
Y443
S449
V450
E455
Y466
K471
E488
K501


17
T389
F390
A402
T404
K408
L419
A421
Y432
Y440
L446
V447
D452
Y463
R468
D485
T498


18
T390
F391
S403
T405
K409
L420
V422
Y433
Y441
S447
V448
E453
Y464
R469
D486
S499


19
T385
F386
S398
T400
K404
L415
V417
Y428
Y436
S442
V443
E448
Y459
R464
D481
S494


20
T391
F392
A404
R406
K410
L421
A423
Y434
Y442
S448
V449
D454
Y465
R470
D487
S500


21
T388
F389
A401
R403
K407
L418
A420
C431
Y439
S445
V446
D451
Y462
K467
D484
T497


22
T393
F394
A406
T408
K412
L423
V425
Y436
Y444
S450
V451
D456
Y467
R472
D489
K502


23
T397
F398
A410
T412
K416
L427
V429
Y440
Y448
S454
V455
D460
Y471
R476
D493
K506


24
T386
F387
A399
T401
K405
L416
V418
Y429
Y437
S443
V444
D449
Y460
R465
D482
K495


25
T432
F433
A445
T447
K451
L462
V464
Y475
Y483
S489
V490
D495
Y506
R511
D528
K541


26
T358
F359
A371
R373
K377
L388
T390
Y401
Y409
S415
V416
E421
Y432
K437
E454
K467


27
T430
F431
A443
T445
K449
L460
V462
Y473
Y481
S487
V488
E493
Y504
K509
E526
N539


28
T432
F433
A445
T447
K451
L462
V464
Y475
Y483
S489
V490
E495
Y506
K511
D528
N541


29
T363
F364
A376
T378
K382
L393
V395
Y406
Y414
S420
V421
D426
Y437
R442
D459
K472


30
T432
F433
A445
T447
K451
L462
V464
Y475
Y483
S489
V490
E495
Y506
K511
D528
N541


31
T432
F433
A445
T447
K451
L462
V464
Y475
Y483
S489
V490
E495
Y506
K511
D528
N541


32
T403
F404
A416
F418
K422
L433
V435
Y446
Y454
L460
V461
D466
Y477
R482
D499



33
N431
Y432
K444
E446
V450
L461
K463
V476
F484
D490
L491
T496
L509
V514
A531
F544


34
T395
F396



L402
C404
Y408
Y416
L422
V423
E428
Y439
R444
D461
K474


35
T455
F456
A468
T470
K474
L485
V487
Y498
Y506
S512
V513
D518
Y529
R534
D551
K564


36
T436
F437
A449
T451
K455
L466
V468
H479
Y487
L493
A494
G499
Y510
K515
D532
A543


37
S396
F397
A409
T411
K415
L426
V428
H439
Y447
L453
V454
A459
Y470
K475
D492
D505


38
T376
F377
S389
L391
Q395
L406
V408
Y419
Y427
S433
V434
D439
F450
R455
D472
T485


39
T391
F392
A404















40
S451
F452
A464
T466
K470
L481
V483
H494
Y502
L508
V509
A514
Y525

K537



41
S451
F452
A464
T466
K470
L481
V483
H494
Y502
L508
V509
A514
Y525

K537



42
T390
F391
A403
T405














43
T399
F400
R412
K414
L418
I429
V431
Y442
Y450
N456
V457
Q462
Y473
R478
E495
K508


44
T399
F400
R412
K414
L418
I429
V431
Y442
Y450
N456
V457
Q462
Y473
R478
E495
K508


45


















46


















47
T284
F285
A297
T299
K303
L314
V316
Y327
Y335
S341
V342
E347
Y358
K363
D380
N393


48
T313
F314
A326
T328
K332
L343
V345
H356
Y364
S370
A371
G376

K383
D400
V413


49


















50
T183
F184
A196
L198
R202
L213
V215
Y226
Y234
M240
V241
E246
Y257
S262




51
T352
F353
L365
E367
E371
L382
I384
R395
Y403
A409
V410
H415
L426
M431
R448
G461


52
T352
F353
S365
A367
Q371
L382
V384
H395
Y403
T409
V410
D415
F426
R431

A458


53
T352
F353
S365
A367
Q371
L382
V384
H395
Y403
T409
V410
D415
F426
R431

T458


54
T91
F92
A104
T106
K110
L121
V123
Y134
Y142
S148
V149
E154
Y165
K170
D187
N200


55
T352
F353
L365
E367
E371
L382
I384
R395
Y403
A409
V410
H415
L426
M431
R448
G461


56
T351
F352
K364
D366
K370
V381
L383
R394
Y402
K408
I409
D414
F425
R430
E447



57
V367
M368
L380
A382
L386
L397
V399
F410
Y418
H424
F425
A430
M441
R446
E463



58
T354
Y355
L367
D369
D373
L384
V386
V397
Y405
K411
I412
N417
F428
R433
Q450



59
L354
F355
E367
R369
L373
M384
I386
F397
Y405
E411
H412
D417
I428
R433
N450



60
N353
Y354
L366
R368
R372
L383
V385
V396
Y404
E410
Y411
D416
L427
R432
A449



61
T351
F352
A364
D366
R370
L381
V383
A394
Y402
A408
A409
E414
F425
R430
R447
V460


62


















63
L355
F356
M368
K370
I374
M385
I387
L398
Y406
E412
H413
E418
L429
R434
K451



64
A365
F366
G378
D380
L384
L395
I397
R408
Y416
E422
L423
S428
L439
R444
E461



65
V375
Y376
R388
A390
V394
L405
V407
T418
Y426
E432
S433
A438
F449
R454
E471



66
V361
M362
L374
E376
R380
L391
V393
H404
L412
I418
V419
I424
L435
R440
E457



67
T352
F353
R365
N367
I371
L382
L384
R395
Y403
E409
I410
D415
F426
R431
E448



68
V345
F346
P358
T360
L364
L375
I377
H388
Y396
K402
V403
T408
L419
R424
N441



69
N362
L363
Q375
D377
I381
I392
A394
R405
Y413
E419
A420
E425
F436
R441
E458
A471


70
V374
L375
M387
L389
M393
L404
V406
V417
Y425
R431
F432
E437
V448
R453
R470



71


















72
V390
L391
M403
L405
M409
L420
V422
V433
Y441
R447
F448
E453
V464
R469
R486



73
T357
L358
R370
D372
I376
L387
I389
R400
Y408
E414
R415
V420
F431
R436
E453
A466


74
V357
F358
A370
D372
E376
L387
V389
R400
L408
E414
T415
R420
L429
L434
E451



75
V357
F358
A370
D372
E376
L387
V389
R400
L408
E414
T415
R420
L429
L434
E451



76
T356
Y357
F369
Q371
L375
L386
I388
L399
P407
D413
R414
S419
I430
I435




77
T358
F359
Q371
E373
I377
L388
I390
R401
Y409
E415
R416
E421
L432
R437
E454
A467


78
V355
M356
F368
D370
V374
M385
I387
K398
Y406
E412
R413
F418
L429
Y434
R451



79
A354
M355
A367
E369
A373
M384
I386
K397
Y405
E411
K412
F417
L428
Y433
E450



80
N374
Y375
M387
D389
V393
L404
A406
L418
Y426
N432
R433
D438
L449
I454
S471
N484


81
V357
F358
T370
D372
E376
L387
V389
R400
F408
E414
T415
R420
L429
L434
E451



82
V354
M355
F367
Q369
L373
L384
L386
S397
Y405
P411
W412
K417
F428
V433
E450



83
T356
F357
F369
Q371
L375
L386
I388
L399
P407
D413
R414
S419
I430
I435




84
S372
F373
F394
P396
A400
L411
T413
L425
Y433
Q439
R440
Q445
V457
L462
Q479



85
T343
F344
Q356
E358
K362

D374
L387
Y395

R398
H403
S416
R421
D438



86
S341
Y342
F354
E356
L360

Q372
L385
F393

Y396
H401
I414
Y419
A436



87
V361
F362
A374
D376
L380
L391
V393
R404
S412
E418
R419
E424
L433
L438
E455



88
F350
F351
K363
D365
R369
L380
Y382
R395
Y403
S409
R410
D415
I426
K431
E448



89
S335
F336
F348
D350
K354

K366
R378
Y386

D389
H394
V407
E412
E429



90
S364
M365
F377
D379
M383
M394
I396
R407
Y415
K421
R422
Q427
L438
Y443
D460



91
S384
F385
F406
P408
A412
L423
T425
L437
Y445
Q451
R452
Q457
V469
L474
Q491



92
N366
F367
F379
N381
V385
L396
K398
L410
Y418
L424
R425
N430
L441
T446
P463



93
T380
F381
H393
D395
N399
L410
V412
R423
Y431
Q437
L438
E443
L454
Y459
E476



94
S366
M367
F379
D381
V385
M396
I398
R409
Y417
R423
R424
E429
L440
Y445
D462



95
A345
F346
R357
D359
L363
L374
I376
T387
Y395
D401
R402
D407
F418
R423
Q440



96
C349
F350
K362
D364
I368
L379
Y381
R394
Y402
A408
R409
D414
I425
K430
E447



97
V355
M356
K368
E370
T374
M385
I387
R398
Y406
E412
K413
F418
F429
Y434
E451



98
N424
Y425
K437
E439
V443
L454
S458
V469
F477
D483
L484
K489
L502
V507
T524



99
T406
F407
A419
T421
K425
L436
I438
Y449
Y457
S463
V464
D469
Y480
R485
D502
N515


100
N427
Y428
K440
E442
V446
L457
N461
V472
F480
D486
L487
K492
L505
V510
A527



101
T392
F393
A405
T407
K411
L422
V424
Y435
Y443
S449
V450
E455
Y466
K471
D488
K500


102
N423
Y424
K436
E438
V442
L453
K457
V468
F476
D482
I483
K488
L501
V506
A523



103
T387
F388
A400
R402
K406
L417
A419
Y430
Y438
L444
V445
E450
Y461
K466
E483
K496


104
S453
F454
K466
Q468
A472
L483
S487
V498
F506
D512
L513
K518
L531
V536
A553



105
N419
Y420
K432
E434
V438
L449
T453
V464
F472
D478
R479
K484
L497
V502
S519



106
T399
F400
A412
T414
K418
L429
V431
H442
Y450
S456
A457
G462
Y473
K478
D495
D508


107
N427
Y428
K440
E442
V446
L457
N461
V472
F480
D486
L487
K492
L505
V510
A527



108
S448
Y449
K461
K463
A467
L478
D482
V493
F501
D507
L508
K513
L526
V531
A548



109
N418
Y419
K431
E433
V437
L448
R452
V463
F471
D477
R478
K483
L496
V501
S518



110
T444
F445
A457
T459
K463
L474
V476
H487
Y495
L501
A502
G507
Y518
K523
D540
G549


111
N419
Y420
K432
E434
V438
L449
R453
V464
F472
D478
R479
K484
L497
V502
S519



112
T388
F389
A401
R403
K407
L418
A420
C431
Y439
S445
V446
D451
Y462
K467
D484
S494


113
N434
Y435
K447
E449
V453
L464
R468
V479
F487
D493
R494
K499
L512
V517
S534



114
N427
Y428
K440
E442
V446
L457
N461
V472
F480
D486
L487
K492
L505
V510
A527



115
T392
F393
A405
T407
K411
L422
V424
Y435
Y443
S449
V450
E455
Y466
K471
D488
S497


116
S448
Y449
K461
K463
A467
L478
D482
V493
F501
D507
L508
K513
L526
V531
A548



117
T393
F394
A406
T408
K412
L423
V425
Y436
Y444
S450
V451
D456
Y467
R472
D489
K502









Assays to test for the functionality of such mutants are readily available in the art, and respectively, described in the Example section of the present invention.


In a preferred embodiment, the mutated PPO refers to a polypeptide of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, or 117, in which the amino acid sequence differs at Mutated site 1 (which corresponds to Arg128 of SEQ ID NO: 1) according to Table 2a, and/or at Mutated site 5 (which corresponds to Phe420 of SEQ ID NO: 1) according to Table 2a.


Examples of differences at these amino acid positions include, but are not limited to, one or more of the following:


the amino acid at Mutated site 1 is other than Arginine (or Tryosine, or Cysteine; as the case may be according to Table 2a);


the amino acid at Mutated site 5 is other than Phenylalanine (or Methionine, or Tyrosine, or Leucine, as the case may be according to Table 2a),


In particularly preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 25 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 1 (which corresponds to Arg128 of SEQ ID NO: 1) is Leu, Ala, Val, Ile, Met, Tyr, Gly, Asn, Cys, Phe, Ser, Thr, Gln, or His, and the amino acid at Mutated site 5 (which corresponds to Phe420 of SEQ ID NO: 1) is Ala, Leu, Val, Ile, or Met.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 1 is Leu, and the amino acid at Mutated site 5 is Ala.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 1 is Leu, and the amino acid at Mutated site 5 is Leu.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 1 is Leu, and the amino acid at Mutated site 5 is Val.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 1 is Leu, and the amino acid at Mutated site 5 is Ile.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 40 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 1 is Leu, and the amino acid at Mutated site 5 is Met.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 1 is Ala, and the amino acid at Mutated site 5 is Ala.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 1 is Ala, and the amino acid at Mutated site 5 is Leu.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 1 is Ala, and the amino acid at Mutated site 5 is Val.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 1 is Ala, and the amino acid at Mutated site 5 is Ile.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 10 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 1 is Ala, and the amino acid at Mutated site 5 is Met.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 1 is Val, and the amino acid at Mutated site 5 is Ala.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 1 is Val, and the amino acid at Mutated site 5 is Leu.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 1 is Val, and the amino acid at Mutated site 5 is Val.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 1 is Val, and the amino acid at Mutated site 5 is Ile.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 20 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 1 is Val, and the amino acid at Mutated site 5 is Met.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 1 is Ile, and the amino acid at Mutated site 5 is Ala.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 1 is Ile, and the amino acid at Mutated site 5 is Leu.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 1 is Ile, and the amino acid at Mutated site 5 is Val.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 1 is Ile, and the amino acid at Mutated site 5 is Ile.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 1 is Ile, and the amino acid at Mutated site 5 is Met.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 1 is Met, and the amino acid at Mutated site 5 is Ala.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 1 is Met, and the amino acid at Mutated site 5 is Leu.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 1 is Met, and the amino acid at Mutated site 5 is Val.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 1 is Met, and the amino acid at Mutated site 5 is Ile.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 1 is Met, and the amino acid at Mutated site 5 is Met.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 1 is Tyr, and the amino acid at Mutated site 5 is Ala.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 1 is Tyr, and the amino acid at Mutated site 5 is Leu.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 35 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 1 is Tyr, and the amino acid at Mutated site 5 is Val.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 1 is Tyr, and the amino acid at Mutated site 5 is Ile.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 1 is Tyr, and the amino acid at Mutated site 5 is Met.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 1 is Gly, and the amino acid at Mutated site 5 is Ala.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 1 is Gly, and the amino acid at Mutated site 5 is Leu.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 1 is Gly, and the amino acid at Mutated site 5 is Val.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 15 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 1 is Gly, and the amino acid at Mutated site 5 is Ile.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 25 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 1 is Gly, and the amino acid at Mutated site 5 is Met. In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 35 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 1 is Asn, and the amino acid at Mutated site 5 is Ala.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 1 is Asn, and the amino acid at Mutated site 5 is Leu.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 1 is Asn, and the amino acid at Mutated site 5 is Val.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 1 is Asn, and the amino acid at Mutated site 5 is Ile.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 1 is Asn, and the amino acid at Mutated site 5 is Met.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 1 is Cys, and the amino acid at Mutated site 5 is Ala.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 1 is Cys, and the amino acid at Mutated site 5 is Leu.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 25 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 1 is Cys, and the amino acid at Mutated site 5 is Val.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 1 is Cys, and the amino acid at Mutated site 5 is Ile.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 1 is Cys, and the amino acid at Mutated site 5 is Met.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 15 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 1 is Phe, and the amino acid at Mutated site 5 is Ala.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 1 is Phe, and the amino acid at Mutated site 5 is Leu.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 1 is Phe, and the amino acid at Mutated site 5 is Val.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 1 is Phe, and the amino acid at Mutated site 5 is Ile.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 1 is Phe, and the amino acid at Mutated site 5 is Met.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 30 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 1 is Ser, and the amino acid at Mutated site 5 is Ala.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 1 is Ser, and the amino acid at Mutated site 5 is Leu.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 1 is Ser, and the amino acid at Mutated site 5 is Val.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 1 is Ser, and the amino acid at Mutated site 5 is Ile.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 1 is Ser, and the amino acid at Mutated site 5 is Met.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 1 is Thr, and the amino acid at Mutated site 5 is Ala.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 1 is Thr, and the amino acid at Mutated site 5 is Leu.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 1 is Thr, and the amino acid at Mutated site 5 is Val.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 1 is Thr, and the amino acid at Mutated site 5 is Ile. In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 1 is Thr, and the amino acid at Mutated site 5 is Met.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 1 is Gln, and the amino acid at Mutated site 5 is Ala.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 1 is Gln, and the amino acid at Mutated site 5 is Leu.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 1 is Gln, and the amino acid at Mutated site 5 is Val.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 1 is Gln, and the amino acid at Mutated site 5 is Ile.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 1 is Gln, and the amino acid at Mutated site 5 is Met.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 1 is His, and the amino acid at Mutated site 5 is Ala.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 1 is His, and the amino acid at Mutated site 5 is Leu.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 1 is His, and the amino acid at Mutated site 5 is Val.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 1 is His, and the amino acid at Mutated site 5 is Ile.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 1 is His, and the amino acid at Mutated site 5 is Met.


In another preferred embodiment, the mutated PPO refers to a polypeptide of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, or 117, in which the amino acid sequence differs at Mutated site 4 (which corresponds to Leu397 of SEQ ID NO: 1) according to Table 2a, and/or at Mutated site 5 (which corresponds to Phe420 of SEQ ID NO: 1) according to Table 2a.


Examples of differences at these amino acid positions include, but are not limited to, one or more of the following:


the amino acid at Mutated site 4 is other than Leucine (or Alanine, or Serine, or Phenylalanine, as the case may be according to Table 2a);


the amino acid at Mutated site 5 is other than Phenylalanine (or Methionine, or Tyrosine, or Leucine, as the case may be according to Table 2a),


In particularly preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 (which corresponds to Leu397 of SEQ ID NO: 1) is Ala, Arg, Val, Ile, Met, His, Lys, Asp, Glu, Ser, Thr, Asn, Gln, Cys, Gly, Pro, Phe, Tyr, or Trp, and the amino acid at Mutated site 5 (which corresponds to Phe420 of SEQ ID NO: 1) is Ala, Leu, Val, Ile, Met, His, Lys, Asp, Glu, Ser, Thr, Asn, Gln, Cys, Gly, Pro, Arg, Tyr, or Trp.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Ala, and the amino acid at Mutated site 5 is Ala.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Ala, and the amino acid at Mutated site 5 is Leu.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which: the amino acid at Mutated site 4 is Ala, and the amino acid at Mutated site 5 is Val.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Ala, and the amino acid at Mutated site 5 is Ile.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Ala, and the amino acid at Mutated site 5 is Met.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Ala, and the amino acid at Mutated site 5 is His.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Ala, and the amino acid at Mutated site 5 is Lys.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Ala, and the amino acid at Mutated site 5 is Asp.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Ala, and the amino acid at Mutated site 5 is Glu.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Ala, and the amino acid at Mutated site 5 is Ser.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Ala, and the amino acid at Mutated site 5 is Thr.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Ala, and the amino acid at Mutated site 5 is Asn.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Ala, and the amino acid at Mutated site 5 is Gln.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Ala, and the amino acid at Mutated site 5 is Cys.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Ala, and the amino acid at Mutated site 5 is Gly.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Ala, and the amino acid at Mutated site 5 is Pro.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Ala, and the amino acid at Mutated site 5 is Arg.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Ala, and the amino acid at Mutated site 5 is Tyr.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Ala, and the amino acid at Mutated site 5 is Trp.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Arg, and the amino acid at Mutated site 5 is Ala.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Arg, and the amino acid at Mutated site 5 is Leu.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Arg, and the amino acid at Mutated site 5 is Val.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Arg, and the amino acid at Mutated site 5 is Ile.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Arg, and the amino acid at Mutated site 5 is Met.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Arg, and the amino acid at Mutated site 5 is His.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Arg, and the amino acid at Mutated site 5 is Lys.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Arg, and the amino acid at Mutated site 5 is Asp.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Arg, and the amino acid at Mutated site 5 is Glu.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Arg, and the amino acid at Mutated site 5 is Ser.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 40 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Arg, and the amino acid at Mutated site 5 is Thr.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Arg, and the amino acid at Mutated site 5 is Asn.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Arg, and the amino acid at Mutated site 5 is Gln.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Arg, and the amino acid at Mutated site 5 is Cys.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Arg, and the amino acid at Mutated site 5 is Gly.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Arg, and the amino acid at Mutated site 5 is Pro.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Arg, and the amino acid at Mutated site 5 is Arg.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Arg, and the amino acid at Mutated site 5 is Tyr.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Arg, and the amino acid at Mutated site 5 is Trp.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Val, and the amino acid at Mutated site 5 is Ala.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Val, and the amino acid at Mutated site 5 is Leu.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Val, and the amino acid at Mutated site 5 is Val.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Val, and the amino acid at Mutated site 5 is Ile.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Val, and the amino acid at Mutated site 5 is Met.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Val, and the amino acid at Mutated site 5 is His.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Val, and the amino acid at Mutated site 5 is Lys.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Val, and the amino acid at Mutated site 5 is Asp.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 10 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 15 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Val, and the amino acid at Mutated site 5 is Glu.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Val, and the amino acid at Mutated site 5 is Ser.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which: the amino acid at Mutated site 4 is Val, and the amino acid at Mutated site 5 is Thr.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Val, and the amino acid at Mutated site 5 is Asn.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 10 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Val, and the amino acid at Mutated site 5 is Gln.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Val, and the amino acid at Mutated site 5 is Cys.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Val, and the amino acid at Mutated site 5 is Gly.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Val, and the amino acid at Mutated site 5 is Pro.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Val, and the amino acid at Mutated site 5 is Arg.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Val, and the amino acid at Mutated site 5 is Tyr.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Val, and the amino acid at Mutated site 5 is Trp.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Ile, and the amino acid at Mutated site 5 is Ala.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Ile, and the amino acid at Mutated site 5 is Leu.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Ile, and the amino acid at Mutated site 5 is Val.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Ile, and the amino acid at Mutated site 5 is Ile.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Ile, and the amino acid at Mutated site 5 is Met.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 15 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Ile, and the amino acid at Mutated site 5 is His.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Ile, and the amino acid at Mutated site 5 is Lys.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 35 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Ile, and the amino acid at Mutated site 5 is Asp.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Ile, and the amino acid at Mutated site 5 is Glu.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Ile, and the amino acid at Mutated site 5 is Ser.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Ile, and the amino acid at Mutated site 5 is Thr.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Ile, and the amino acid at Mutated site 5 is Asn.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Ile, and the amino acid at Mutated site 5 is Gln.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Ile, and the amino acid at Mutated site 5 is Cys.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Ile, and the amino acid at Mutated site 5 is Gly.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Ile, and the amino acid at Mutated site 5 is Pro.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Ile, and the amino acid at Mutated site 5 is Arg.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Ile, and the amino acid at Mutated site 5 is Tyr.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Ile, and the amino acid at Mutated site 5 is Trp.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Met, and the amino acid at Mutated site 5 is Ala.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Met, and the amino acid at Mutated site 5 is Leu.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Met, and the amino acid at Mutated site 5 is Val.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Met, and the amino acid at Mutated site 5 is Ile.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Met, and the amino acid at Mutated site 5 is Met.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Met, and the amino acid at Mutated site 5 is His.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Met, and the amino acid at Mutated site 5 is Lys.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 30 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Met, and the amino acid at Mutated site 5 is Asp.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 40 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Met, and the amino acid at Mutated site 5 is Glu.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Met, and the amino acid at Mutated site 5 is Ser.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Met, and the amino acid at Mutated site 5 is Thr.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Met, and the amino acid at Mutated site 5 is Asn.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Met, and the amino acid at Mutated site 5 is Gln.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Met, and the amino acid at Mutated site 5 is Cys.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Met, and the amino acid at Mutated site 5 is Gly.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Met, and the amino acid at Mutated site 5 is Pro.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Met, and the amino acid at Mutated site 5 is Arg.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Met, and the amino acid at Mutated site 5 is Tyr.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Met, and the amino acid at Mutated site 5 is Trp.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is His, and the amino acid at Mutated site 5 is Ala.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is His, and the amino acid at Mutated site 5 is Leu.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is His, and the amino acid at Mutated site 5 is Val.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is His, and the amino acid at Mutated site 5 is Ile.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is His, and the amino acid at Mutated site 5 is Met.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is His, and the amino acid at Mutated site 5 is His.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is His, and the amino acid at Mutated site 5 is Lys.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is His, and the amino acid at Mutated site 5 is Asp.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is His, and the amino acid at Mutated site 5 is Glu.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is His, and the amino acid at Mutated site 5 is Ser.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is His, and the amino acid at Mutated site 5 is Thr.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is His, and the amino acid at Mutated site 5 is Asn.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is His, and the amino acid at Mutated site 5 is Gln.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is His, and the amino acid at Mutated site 5 is Cys.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is His, and the amino acid at Mutated site 5 is Gly.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is His, and the amino acid at Mutated site 5 is Pro.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is His, and the amino acid at Mutated site 5 is Arg.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is His, and the amino acid at Mutated site 5 is Tyr.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is His, and the amino acid at Mutated site 5 is Trp.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 25 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Lys, and the amino acid at Mutated site 5 is Ala.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Lys, and the amino acid at Mutated site 5 is Leu.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Lys, and the amino acid at Mutated site 5 is Val.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Lys, and the amino acid at Mutated site 5 is Ile.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Lys, and the amino acid at Mutated site 5 is Met.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Lys, and the amino acid at Mutated site 5 is His.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Lys, and the amino acid at Mutated site 5 is Lys.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Lys, and the amino acid at Mutated site 5 is Asp.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Lys, and the amino acid at Mutated site 5 is Glu.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Lys, and the amino acid at Mutated site 5 is Ser.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Lys, and the amino acid at Mutated site 5 is Thr.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Lys, and the amino acid at Mutated site 5 is Asn.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Lys, and the amino acid at Mutated site 5 is Gln.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Lys, and the amino acid at Mutated site 5 is Cys.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Lys, and the amino acid at Mutated site 5 is Gly.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Lys, and the amino acid at Mutated site 5 is Pro.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Lys, and the amino acid at Mutated site 5 is Arg.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Lys, and the amino acid at Mutated site 5 is Tyr.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Lys, and the amino acid at Mutated site 5 is Trp.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Asp, and the amino acid at Mutated site 5 is Ala.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Asp, and the amino acid at Mutated site 5 is Leu.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Asp, and the amino acid at Mutated site 5 is Val.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Asp, and the amino acid at Mutated site 5 is Ile.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Asp, and the amino acid at Mutated site 5 is Met.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Asp, and the amino acid at Mutated site 5 is His.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Asp, and the amino acid at Mutated site 5 is Lys.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Asp, and the amino acid at Mutated site 5 is Asp.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 20 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Asp, and the amino acid at Mutated site 5 is Glu.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Asp, and the amino acid at Mutated site 5 is Ser.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Asp, and the amino acid at Mutated site 5 is Thr.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 10 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Asp, and the amino acid at Mutated site 5 is Asn.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Asp, and the amino acid at Mutated site 5 is Gln.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Asp, and the amino acid at Mutated site 5 is Cys.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Asp, and the amino acid at Mutated site 5 is Gly.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Asp, and the amino acid at Mutated site 5 is Pro.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Asp, and the amino acid at Mutated site 5 is Arg.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Asp, and the amino acid at Mutated site 5 is Tyr.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Asp, and the amino acid at Mutated site 5 is Trp.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Glu, and the amino acid at Mutated site 5 is Ala.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Glu, and the amino acid at Mutated site 5 is Leu.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Glu, and the amino acid at Mutated site 5 is Val.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Glu, and the amino acid at Mutated site 5 is Ile.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Glu, and the amino acid at Mutated site 5 is Met.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Glu, and the amino acid at Mutated site 5 is His.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Glu, and the amino acid at Mutated site 5 is Lys.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Glu, and the amino acid at Mutated site 5 is Asp.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Glu, and the amino acid at Mutated site 5 is Glu.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Glu, and the amino acid at Mutated site 5 is Ser.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Glu, and the amino acid at Mutated site 5 is Thr.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Glu, and the amino acid at Mutated site 5 is Asn.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Glu, and the amino acid at Mutated site 5 is Gln.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Glu, and the amino acid at Mutated site 5 is Cys.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Glu, and the amino acid at Mutated site 5 is Gly.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Glu, and the amino acid at Mutated site 5 is Pro.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Glu, and the amino acid at Mutated site 5 is Arg.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Glu, and the amino acid at Mutated site 5 is Tyr.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 40 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Glu, and the amino acid at Mutated site 5 is Trp.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Ser, and the amino acid at Mutated site 5 is Ala.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Ser, and the amino acid at Mutated site 5 is Leu.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Ser, and the amino acid at Mutated site 5 is Val.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Ser, and the amino acid at Mutated site 5 is Ile.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Ser, and the amino acid at Mutated site 5 is Met.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Ser, and the amino acid at Mutated site 5 is His.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Ser, and the amino acid at Mutated site 5 is Lys.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Ser, and the amino acid at Mutated site 5 is Asp.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Ser, and the amino acid at Mutated site 5 is Glu.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Ser, and the amino acid at Mutated site 5 is Ser.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 30 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Ser, and the amino acid at Mutated site 5 is Thr.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Ser, and the amino acid at Mutated site 5 is Asn.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Ser, and the amino acid at Mutated site 5 is Gln.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Ser, and the amino acid at Mutated site 5 is Cys.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Ser, and the amino acid at Mutated site 5 is Gly.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Ser, and the amino acid at Mutated site 5 is Pro.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Ser, and the amino acid at Mutated site 5 is Arg.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Ser, and the amino acid at Mutated site 5 is Tyr.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Ser, and the amino acid at Mutated site 5 is Trp.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Thr, and the amino acid at Mutated site 5 is Ala.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Thr, and the amino acid at Mutated site 5 is Leu.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Thr, and the amino acid at Mutated site 5 is Val.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Thr, and the amino acid at Mutated site 5 is Ile.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Thr, and the amino acid at Mutated site 5 is Met.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Thr, and the amino acid at Mutated site 5 is His.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 25 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Thr, and the amino acid at Mutated site 5 is Lys.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Thr, and the amino acid at Mutated site 5 is Asp.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Thr, and the amino acid at Mutated site 5 is Glu.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Thr, and the amino acid at Mutated site 5 is Ser.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Thr, and the amino acid at Mutated site 5 is Thr.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Thr, and the amino acid at Mutated site 5 is Asn.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Thr, and the amino acid at Mutated site 5 is Gln.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Thr, and the amino acid at Mutated site 5 is Cys.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Thr, and the amino acid at Mutated site 5 is Gly.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Thr, and the amino acid at Mutated site 5 is Pro.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Thr, and the amino acid at Mutated site 5 is Arg.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Thr, and the amino acid at Mutated site 5 is Tyr.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Thr, and the amino acid at Mutated site 5 is Trp.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Asn, and the amino acid at Mutated site 5 is Ala.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Asn, and the amino acid at Mutated site 5 is Leu.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Asn, and the amino acid at Mutated site 5 is Val.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Asn, and the amino acid at Mutated site 5 is Ile.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Asn, and the amino acid at Mutated site 5 is Met.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Asn, and the amino acid at Mutated site 5 is His.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Asn, and the amino acid at Mutated site 5 is Lys.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Asn, and the amino acid at Mutated site 5 is Asp.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Asn, and the amino acid at Mutated site 5 is Glu.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Asn, and the amino acid at Mutated site 5 is Ser.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Asn, and the amino acid at Mutated site 5 is Thr.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Asn, and the amino acid at Mutated site 5 is Asn.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which: the amino acid at Mutated site 4 is Asn, and the amino acid at Mutated site 5 is Gln.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Asn, and the amino acid at Mutated site 5 is Cys.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Asn, and the amino acid at Mutated site 5 is Gly.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Asn, and the amino acid at Mutated site 5 is Pro.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Asn, and the amino acid at Mutated site 5 is Arg.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Asn, and the amino acid at Mutated site 5 is Tyr.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Asn, and the amino acid at Mutated site 5 is Trp.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Gln, and the amino acid at Mutated site 5 is Ala.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Gln, and the amino acid at Mutated site 5 is Leu.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Gln, and the amino acid at Mutated site 5 is Val.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Gln, and the amino acid at Mutated site 5 is Ile.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Gln, and the amino acid at Mutated site 5 is Met.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Gln, and the amino acid at Mutated site 5 is His.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Gln, and the amino acid at Mutated site 5 is Lys.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Gln, and the amino acid at Mutated site 5 is Asp.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Gln, and the amino acid at Mutated site 5 is Glu.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Gln, and the amino acid at Mutated site 5 is Ser.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Gln, and the amino acid at Mutated site 5 is Thr.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Gln, and the amino acid at Mutated site 5 is Asn.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Gln, and the amino acid at Mutated site 5 is Gln.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Gln, and the amino acid at Mutated site 5 is Cys.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Gln, and the amino acid at Mutated site 5 is Gly.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Gln, and the amino acid at Mutated site 5 is Pro.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Gln, and the amino acid at Mutated site 5 is Arg.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Gln, and the amino acid at Mutated site 5 is Tyr.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Gln, and the amino acid at Mutated site 5 is Trp.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Cys, and the amino acid at Mutated site 5 is Ala.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Cys, and the amino acid at Mutated site 5 is Leu.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Cys, and the amino acid at Mutated site 5 is Val.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Cys, and the amino acid at Mutated site 5 is Ile.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Cys, and the amino acid at Mutated site 5 is Met.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Cys, and the amino acid at Mutated site 5 is His.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Cys, and the amino acid at Mutated site 5 is Lys.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Cys, and the amino acid at Mutated site 5 is Asp.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Cys, and the amino acid at Mutated site 5 is Glu.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which: the amino acid at Mutated site 4 is Cys, and the amino acid at Mutated site 5 is Ser.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which: the amino acid at Mutated site 4 is Cys, and the amino acid at Mutated site 5 is Thr.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Cys, and the amino acid at Mutated site 5 is Asn.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Cys, and the amino acid at Mutated site 5 is Gln.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Cys, and the amino acid at Mutated site 5 is Cys.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Cys, and the amino acid at Mutated site 5 is Gly.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Cys, and the amino acid at Mutated site 5 is Pro.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Cys, and the amino acid at Mutated site 5 is Arg.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Cys, and the amino acid at Mutated site 5 is Tyr.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Cys, and the amino acid at Mutated site 5 is Trp.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Gly, and the amino acid at Mutated site 5 is Ala.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Gly, and the amino acid at Mutated site 5 is Leu.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Gly, and the amino acid at Mutated site 5 is Val.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Gly, and the amino acid at Mutated site 5 is Ile.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Gly, and the amino acid at Mutated site 5 is Met.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Gly, and the amino acid at Mutated site 5 is His.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Gly, and the amino acid at Mutated site 5 is Lys.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Gly, and the amino acid at Mutated site 5 is Asp.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Gly, and the amino acid at Mutated site 5 is Glu.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Gly, and the amino acid at Mutated site 5 is Ser.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Gly, and the amino acid at Mutated site 5 is Thr.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Gly, and the amino acid at Mutated site 5 is Asn.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Gly, and the amino acid at Mutated site 5 is Gln.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Gly, and the amino acid at Mutated site 5 is Cys.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Gly, and the amino acid at Mutated site 5 is Gly.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Gly, and the amino acid at Mutated site 5 is Pro.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Gly, and the amino acid at Mutated site 5 is Arg.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Gly, and the amino acid at Mutated site 5 is Tyr.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Gly, and the amino acid at Mutated site 5 is Trp.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Pro, and the amino acid at Mutated site 5 is Ala.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Pro, and the amino acid at Mutated site 5 is Leu.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Pro, and the amino acid at Mutated site 5 is Val.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Pro, and the amino acid at Mutated site 5 is Ile.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Pro, and the amino acid at Mutated site 5 is Met.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Pro, and the amino acid at Mutated site 5 is His.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Pro, and the amino acid at Mutated site 5 is Lys.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Pro, and the amino acid at Mutated site 5 is Asp.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Pro, and the amino acid at Mutated site 5 is Glu.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Pro, and the amino acid at Mutated site 5 is Ser.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Pro, and the amino acid at Mutated site 5 is Thr.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Pro, and the amino acid at Mutated site 5 is Asn.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Pro, and the amino acid at Mutated site 5 is Gln.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Pro, and the amino acid at Mutated site 5 is Cys.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Pro, and the amino acid at Mutated site 5 is Gly.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Pro, and the amino acid at Mutated site 5 is Pro.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Pro, and the amino acid at Mutated site 5 is Arg.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Pro, and the amino acid at Mutated site 5 is Tyr.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Pro, and the amino acid at Mutated site 5 is Trp.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Phe, and the amino acid at Mutated site 5 is Ala.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Phe, and the amino acid at Mutated site 5 is Leu.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Phe, and the amino acid at Mutated site 5 is Val.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Phe, and the amino acid at Mutated site 5 is Ile.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Phe, and the amino acid at Mutated site 5 is Met.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Phe, and the amino acid at Mutated site 5 is His.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Phe, and the amino acid at Mutated site 5 is Lys.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Phe, and the amino acid at Mutated site 5 is Asp.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Phe, and the amino acid at Mutated site 5 is Glu.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Phe, and the amino acid at Mutated site 5 is Ser.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Phe, and the amino acid at Mutated site 5 is Thr.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Phe, and the amino acid at Mutated site 5 is Asn.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Phe, and the amino acid at Mutated site 5 is Gln.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Phe, and the amino acid at Mutated site 5 is Cys.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Phe, and the amino acid at Mutated site 5 is Gly.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Phe, and the amino acid at Mutated site 5 is Pro.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Phe, and the amino acid at Mutated site 5 is Arg.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Phe, and the amino acid at Mutated site 5 is Tyr.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Phe, and the amino acid at Mutated site 5 is Trp.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Tyr, and the amino acid at Mutated site 5 is Ala.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Tyr, and the amino acid at Mutated site 5 is Leu.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Tyr, and the amino acid at Mutated site 5 is Val.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Tyr, and the amino acid at Mutated site 5 is Ile.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Tyr, and the amino acid at Mutated site 5 is Met.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Tyr, and the amino acid at Mutated site 5 is His.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Tyr, and the amino acid at Mutated site 5 is Lys.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Tyr, and the amino acid at Mutated site 5 is Asp.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Tyr, and the amino acid at Mutated site 5 is Glu.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Tyr, and the amino acid at Mutated site 5 is Ser.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Tyr, and the amino acid at Mutated site 5 is Thr.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Tyr, and the amino acid at Mutated site 5 is Asn.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Tyr, and the amino acid at Mutated site 5 is Gln.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Tyr, and the amino acid at Mutated site 5 is Cys.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Tyr, and the amino acid at Mutated site 5 is Gly.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Tyr, and the amino acid at Mutated site 5 is Pro.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Tyr, and the amino acid at Mutated site 5 is Arg.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Tyr, and the amino acid at Mutated site 5 is Tyr.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Tyr, and the amino acid at Mutated site 5 is Trp.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Trp, and the amino acid at Mutated site 5 is Ala.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Trp, and the amino acid at Mutated site 5 is Leu.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Trp, and the amino acid at Mutated site 5 is Val.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 25 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Trp, and the amino acid at Mutated site 5 is Ile.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Trp, and the amino acid at Mutated site 5 is Met.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Trp, and the amino acid at Mutated site 5 is His.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Trp, and the amino acid at Mutated site 5 is Lys.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Trp, and the amino acid at Mutated site 5 is Asp.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Trp, and the amino acid at Mutated site 5 is Glu.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Trp, and the amino acid at Mutated site 5 is Ser.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Trp, and the amino acid at Mutated site 5 is Thr.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Trp, and the amino acid at Mutated site 5 is Asn.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Trp, and the amino acid at Mutated site 5 is Gln.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Trp, and the amino acid at Mutated site 5 is Cys.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 15 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Trp, and the amino acid at Mutated site 5 is Gly.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Trp, and the amino acid at Mutated site 5 is Pro.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Trp, and the amino acid at Mutated site 5 is Arg.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 5 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 10 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which: the amino acid at Mutated site 4 is Trp, and the amino acid at Mutated site 5 is Tyr.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 4 is Trp, and the amino acid at Mutated site 5 is Trp.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 3 is other than Gly, is preferably Arg.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 6 is other than Gly, is preferably Ala.


In another preferred embodiment, the mutated PPO comprises a sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, a variant, derivative, orthologue, paralogue or homologue thereof, in which:


the amino acid at Mutated site 7 is other than Leu, is preferably Phe.


It will be within the knowledge of the skilled artisan to identify conserved regions and motifs shared between the homologues, orthologues and paralogues of PPO polypeptides comprising SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 20 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637. Having identified such conserved regions that may represent suitable binding motifs, amino acids corresponding to the amino acids listed in Table 2a and 2b can be chosen to be subsituted by any other amino acid, preferably by the amino acids listed under mutated sites 1, 2, 3, 4, or 5.


Accordingly, preferred motifs shared between the homologues, orthologues and paralogues of PPO polypeptides described above are Motif 1: SQ[N/K/H]KRYI, wherein the Arg at position 5 within said motif is substituted by Leu, Ala, Val, Ile, Met, Tyr, Gly, Asn, Cys, Phe, Ser, Thr, Gln, or His; Motif 2: TLGTLFSS, wherein the Leu at position 2 within said motif is substituted by Ala, Arg, Val, Ile, Met, His, Lys, Asp, Glu, Ser, Thr, Asn, Gln, Cys, Gly, Pro, Phe, Tyr, or Trp; and/or wherein the Gly at position 3 within said motif is substituted by Ala, Arg, Val, Ile, Met, His, Lys, Asp, Glu, Ser, Thr, Asn, Gln, Cys, Leu, Pro, Phe, Tyr, or Trp; and/or wherein the Leu at position 5 within said motif is substituted by Ala, Arg, Val, Ile, Met, His, Lys, Asp, Glu, Ser, Thr, Asn, Gln, Cys, Gly, Pro, Phe, Tyr, or Trp; Motif 3: [F/Y]TTF[V/I]GG, wherein the Phe at position 4 within said motif is substituted by Ala, Leu, Val, Ile, Met, His, Lys, Asp, Glu, Ser, Thr, Asn, Gln, Cys, Gly, Pro, Arg, Tyr, or Trp.


Further examples of such homologues, orthologues and paralogues are PPO polypeptides comprising the amino acid sequence of SEQ ID NO: 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637.


In addition, the present invention refers to a method for identifying a uracilpyridine herbicide by using a herbicide tolerant PPO polypeptide as defined SUPRA.


Said method comprises the steps of:

    • a) generating a transgenic cell or plant comprising a nucleic acid encoding a mutated


PPO, wherein the mutated PPO is expressed;

    • b) applying a uracilpyridine herbicide to the transgenic cell or plant of a) and to a control cell or plant of the same variety;
    • c) determining the growth or the viability of the transgenic cell or plant and the control cell or plant after application of said uracilpyridine herbicide, and
    • d) selecting “uracilpyridine herbicides” which confer reduced growth to the control cell or plant as compared to the growth of the transgenic cell or plant.


By “control cell” or “similar, wild-type, plant, plant tissue, plant cell or host cell” is intended a plant, plant tissue, plant cell, or host cell, respectively, that lacks the herbicide-resistance characteristics and/or particular polynucleotide of the invention that are disclosed herein. The use of the term “wild-type” is not, therefore, intended to imply that a plant, plant tissue, plant cell, or other host cell lacks recombinant DNA in its genome, and/or does not possess herbicide-resistant characteristics that are different from those disclosed herein.


Another object refers to a method of identifying a nucleotide sequence encoding a mutated PPO which is resistant or tolerant to a uracilpyridine herbicide, the method comprising:

    • a) generating a library of mutated PPO-encoding nucleic acids,
    • b) screening a population of the resulting mutated PPO-encoding nucleic acids by expressing each of said nucleic acids in a cell or plant and treating said cell or plant with a uracilpyridine herbicide,
    • c) comparing the uracilpyridine herbicide-tolerance levels provided by said population of mutated PPO encoding nucleic acids with the uracilpyridine herbicide-tolerance level provided by a control PPO-encoding nucleic acid,
    • d) selecting at least one mutated PPO-encoding nucleic acid that provides a significantly increased level of tolerance to a uracilpyridine herbicide as compared to that provided by the control PPO-encoding nucleic acid.


In a preferred embodiment, the mutated PPO-encoding nucleic acid selected in step d) provides at least 2-fold as much resistance or tolerance of a cell or plant to a uracilpyridine herbicide as compared to that provided by the control PPO-encoding nucleic acid.


In a further preferred embodiment, the mutated PPO-encoding nucleic acid selected in step d) provides at least 2-fold, at least 5-fold, at least 10-fold, at least 20-fold, at least 50-fold, at least 100-fold, at least 500-fold, as much resistance or tolerance of a cell or plant to a uracilpyridine herbicide as compared to that provided by the control PPO-encoding nucleic acid.


The resistance or tolerance can be determined by generating a transgenic plant or host cell, preferably a plant cell, comprising a nucleic acid sequence of the library of step a) and comparing said transgenic plant with a control plant or host cell, preferably a plant cell.


Another object refers to a method of identifying a plant or algae containing a nucleic acid comprising a nucleotide sequence encoding a wild-type or mutated PPO which is resistant or tolerant to a uracilpyridine herbicide, the method comprising:

    • a) identifying an effective amount of a uracilpyridine herbicide in a culture of plant cells or green algae that leads to death of said cells.
    • b) treating said plant cells or green algae with a mutagenizing agent,
    • c) contacting said mutagenized cells population with an effective amount of uracilpyridine herbicide, identified in a),
    • d) selecting at least one cell surviving these test conditions,
    • e) PCR-amplification and sequencing of PPO genes from cells selected in d) and comparing such sequences to wild-type PPO gene sequences, respectively.


In a preferred embodiment, said mutagenizing agent is ethylmethanesulfonate (EMS). Many methods well known to the skilled artisan are available for obtaining suitable candidate nucleic acids for identifying a nucleotide sequence encoding a mutated PPO from a variety of different potential source organisms including microbes, plants, fungi, algae, mixed cultures etc. as well as environmental sources of DNA such as soil. These methods include inter alia the preparation of cDNA or genomic DNA libraries, the use of suitably degenerate oligonucleotide primers, the use of probes based upon known sequences or complementation assays (for example, for growth upon tyrosine) as well as the use of mutagenesis and shuffling in order to provide recombined or shuffled mutated PPO-encoding sequences.


Nucleic acids comprising candidate and control PPO encoding sequences can be expressed in yeast, in a bacterial host strain, in an alga or in a higher plant such as tobacco or Arabidopsis and the relative levels of inherent tolerance of the PPO encoding sequences screened according to a visible indicator phenotype of the transformed strain or plant in the presence of different concentrations of the selected uracilpyridine herbicide. Dose responses and relative shifts in dose responses associated with these indicator phenotypes (formation of brown color, growth inhibition, herbicidal effect etc) are conveniently expressed in terms, for example, of GR50 (concentration for 50% reduction of growth) or MIC (minimum inhibitory concentration) values where increases in values correspond to increases in inherent tolerance of the expressed PPO. For example, in a relatively rapid assay system based upon transformation of a bacterium such as E. coli, each mutated PPO encoding sequence may be expressed, for example, as a DNA sequence under expression control of a controllable promoter such as the lacZ promoter and taking suitable account, for example by the use of synthetic DNA, of such issues as codon usage in order to obtain as comparable a level of expression as possible of different PPO sequences. Such strains expressing nucleic acids comprising alternative candidate PPO sequences may be plated out on different concentrations of the selected uracilpyridine herbicide in, optionally, a tyrosine supplemented medium and the relative levels of inherent tolerance of the expressed PPO enzymes estimated on the basis of the extent and MIC for inhibition of the formation of the brown, ochronotic pigment.


In another embodiment, candidate nucleic acids are transformed into plant material to generate a transgenic plant, regenerated into morphologically normal fertile plants which are then measured for differential tolerance to selected uracilpyridine herbicides as described in the Example section hereinafter. Many suitable methods for transformation using suitable selection markers such as kanamycin, binary vectors such as from Agrobacterium and plant regeneration as, for example, from tobacco leaf discs are well known in the art. Optionally, a control population of plants is likewise transformed with a nucleic acid expressing the control PPO. Alternatively, an untransformed dicot plant such as Arabidopsis or Tobacco can be used as a control since this, in any case, expresses its own endogenous PPO. The average, and distribution, of herbicide tolerance levels of a range of primary plant transformation events or their progeny to uracilpyridine herbicides described supra are evaluated in the normal manner based upon plant damage, meristematic bleaching symptoms etc. at a range of different concentrations of herbicides. These data can be expressed in terms of, for example, GR50 values derived from dose/response curves having “dose” plotted on the x-axis and “percentage kill”, “herbicidal effect”, “numbers of emerging green plants” etc. plotted on the y-axis where increased GR50 values correspond to increased levels of inherent tolerance of the expressed PPO. Herbicides can suitably be applied pre-emergence or post-emergence.


In another embodiment, the invention refers to a plant cell transformed by a nucleic acid encoding a herbicide tolerant PPO polypeptide disclosed herein or to a plant cell which has been mutated to obtain a plant expressing a nucleic acid encoding a mutated PPO polypeptide according to the present invention, wherein expression of the nucleic acid in the plant cell results in increased resistance or tolerance to a uracilpyridine herbicide as compared to a wild type variety of the plant cell.


The term “expression/expressing” or “gene expression” means the transcription of a specific gene or specific genes or specific genetic construct. The term “expression” or “gene expression” in particular means the transcription of a gene or genes or genetic construct into structural RNA (rRNA, tRNA) or mRNA with or without subsequent translation of the latter into a protein. The process includes transcription of DNA and processing of the resulting mRNA product.


To obtain the desired effect, i.e. plants that are tolerant or resistant to the uracilpyridine herbicide derivative herbicide of the present invention, it will be understood that the at least one nucleic acid is “over-expressed” by methods and means known to the person skilled in the art.


The term “increased expression” or “overexpression” as used herein means any form of expression that is additional to the original wild-type expression level. Methods for increasing expression of genes or gene products are well documented in the art and include, for example, overexpression driven by appropriate promoters, the use of transcription enhancers or translation enhancers. Isolated nucleic acids which serve as promoter or enhancer elements may be introduced in an appropriate position (typically upstream) of a non-heterologous form of a polynucleotide so as to upregulate expression of a nucleic acid encoding the polypeptide of interest. For example, endogenous promoters may be altered in vivo by mutation, deletion, and/or substitution (see, Kmiec, U.S. Pat. No. 5,565,350; Zarling et al., WO9322443), or isolated promoters may be introduced into a plant cell in the proper orientation and distance from a gene of the present invention so as to control the expression of the gene.


If polypeptide expression is desired, it is generally desirable to include a polyadenylation region at the 3′-end of a polynucleotide coding region. The polyadenylation region can be derived from the natural gene, from a variety of other plant genes, or from T-DNA. The 3′ end sequence to be added may be derived from, for example, the nopaline synthase or octopine synthase genes, or alternatively from another plant gene, or less preferably from any other eukaryotic gene.


An intron sequence may also be added to the 5′ untranslated region (UTR) or the coding sequence of the partial coding sequence to increase the amount of the mature message that accumulates in the cytosol. Inclusion of a spliceable intron in the transcription unit in both plant and animal expression constructs has been shown to increase gene expression at both the mRNA and protein levels up to 1000-fold (Buchman and Berg (1988) Mol. Cell biol. 8: 4395-4405; Callis et al. (1987) Genes Dev 1:1183-1200). Such intron enhancement of gene expression is typically greatest when placed near the 5′ end of the transcription unit. Use of the maize introns Adh1-5 intron 1, 2, and 6, the Bronze-1 intron are known in the art. For general information see: The Maize Handbook, Chapter 116, Freeling and Walbot, Eds., Springer, N.Y. (1994)


The term “introduction” or “transformation” as referred to herein encompasses the transfer of an exogenous polynucleotide into a host cell, irrespective of the method used for transfer. Plant tissue capable of subsequent clonal propagation, whether by organogenesis or embryogenesis, may be transformed with a genetic construct of the present invention and a whole plant regenerated there from. The particular tissue chosen will vary depending on the clonal propagation systems available for, and best suited to, the particular species being transformed. Exemplary tissue targets include leaf disks, pollen, embryos, cotyledons, hypocotyls, megagametophytes, callus tissue, existing meristematic tissue (e.g., apical meristem, axillary buds, and root meristems), and induced meristem tissue (e.g., cotyledon meristem and hypocotyl meristem). The polynucleotide may be transiently or stably introduced into a host cell and may be maintained non-integrated, for example, as a plasmid. Alternatively, it may be integrated into the host genome. The resulting transformed plant cell may then be used to regenerate a transformed plant in a manner known to persons skilled in the art.


The transfer of foreign genes into the genome of a plant is called transformation. Transformation of plant species is now a fairly routine technique. Advantageously, any of several transformation methods may be used to introduce the gene of interest into a suitable ancestor cell. The methods described for the transformation and regeneration of plants from plant tissues or plant cells may be utilized for transient or for stable transformation. Transformation methods include the use of liposomes, electroporation, chemicals that increase free DNA uptake, injection of the DNA directly into the plant, particle gun bombardment, transforrmation using viruses or pollen and microprojection. Methods may be selected from the calcium/polyethylene glycol method for protoplasts (Krens, F.A. et al., (1982) Nature 296, 72-74; Negrutiu I et al. (1987) Plant Mol Biol 8: 363-373); electroporation of protoplasts (Shillito R. D. et al. (1985) Bio/Technol 3, 1099-1102); microinjection into plant material (Crossway A et al., (1986) Mol. Gen Genet 202: 179-185); DNA or RNA-coated particle bombardment (Klein TM et al., (1987) Nature 327: 70) infection with (non-integrative) viruses and the like. Transgenic plants, including transgenic crop plants, are preferably produced via Agrobacterium-mediated transformation. An advantageous transformation method is the transformation in planta. To this end, it is possible, for example, to allow the agrobacteria to act on plant seeds or to inoculate the plant meristem with agrobacteria. It has proved particularly expedient in accordance with the invention to allow a suspension of transformed agrobacteria to act on the intact plant or at least on the flower primordia. The plant is subsequently grown on until the seeds of the treated plant are obtained (Clough and Bent, Plant J. (1998) 16, 735-743). Methods for Agrobacterium-mediated transformation of rice include well known methods for rice transformation, such as those described in any of the following: European patent application EP 1198985 Al, Aldemita and Hodges (Planta 199: 612-617, 1996); Chan et al. (Plant Mol Biol 22 (3): 491-506, 1993), Hiei et al. (Plant J 6 (2): 271-282, 1994), which disclosures are incorporated by reference herein as if fully set forth. In the case of corn transformation, the preferred method is as described in either Ishida et al. (Nat. Biotechnol 14(6): 745-50, 1996) or Frame et al. (Plant Physiol 129(1): 13-22, 2002), which disclosures are incorporated by reference herein as if fully set forth. Said methods are further described by way of example in B. Jenes et al., Techniques for Gene Transfer, in: Transgenic Plants, Vol. 1, Engineering and Utilization, eds. S. D. Kung and R. Wu, Academic Press (1993) 128-143 and in Potrykus Annu. Rev. Plant Physiol. Plant Molec. Biol. 42 (1991) 205-225). The nucleic acids or the construct to be expressed is preferably cloned into a vector, which is suitable for transforming Agrobacterium tumefaciens, for example pBin19 (Bevan et al., Nucl. Acids Res. 12 (1984) 8711). Agrobacteria transformed by such a vector can then be used in known manner for the transformation of plants, such as plants used as a model, like Arabidopsis (Arabidopsis thaliana is within the scope of the present invention not considered as a crop plant), or crop plants such as, by way of example, tobacco plants, for example by immersing bruised leaves or chopped leaves in an agrobacterial solution and then culturing them in suitable media. The transformation of plants by means of Agrobacterium tumefaciens is described, for example, by Hofgen and Willmitzer in Nucl. Acid Res. (1988) 16, 9877 or is known inter alia from F.F. White, Vectors for Gene Transfer in Higher Plants; in Transgenic Plants, Vol. 1, Engineering and Utilization, eds. S. D. Kung and R. Wu, Academic Press, 1993, pp. 15-38.


In addition to the transformation of somatic cells, which then have to be regenerated into intact plants, it is also possible to transform the cells of plant meristems and in particular those cells which develop into gametes. In this case, the transformed gametes follow the natural plant development, giving rise to transgenic plants. Thus, for example, seeds of Arabidopsis are treated with agrobacteria and seeds are obtained from the developing plants of which a certain proportion is transformed and thus transgenic [Feldman, K A and Marks M D (1987). Mol Gen Genet 208:274-289; Feldmann K (1992). In: C Koncz, N-H Chua and .1 Shell, eds, Methods in Arabidopsis Research. Word Scientific, Singapore, pp. 274-289]. Alternative methods are based on the repeated removal of the inflorescences and incubation of the excision site in the center of the rosette with transformed agrobacteria, whereby transformed seeds can likewise be obtained at a later point in time (Chang (1994). Plant J. 5: 551-558; Katavic (1994). Mol Gen Genet, 245: 363-370). However, an especially effective method is the vacuum infiltration method with its modifications such as the “floral dip” method. In the case of vacuum infiltration of Arabidopsis, intact plants under reduced pressure are treated with an agrobacterial suspension [Bechthold, N (1993). C R Acad Sci Paris Life Sci, 316: 1194-1199], while in the case of the “floral dip” method the developing floral tissue is incubated briefly with a surfactant-treated agrobacterial suspension [Clough, Si and Bent AF (1998) The Plant J. 16, 735-743]. A certain proportion of transgenic seeds are harvested in both cases, and these seeds can be distinguished from non-transgenic seeds by growing under the above-described selective conditions. In addition the stable transformation of plastids is of advantages because plastids are inherited maternally is most crops reducing or eliminating the risk of transgene flow through pollen. The transformation of the chloroplast genome is generally achieved by a process which has been schematically displayed in Klaus et al., 2004 [Nature Biotechnology 22 (2), 225-229 ]. Briefly the sequences to be transformed are cloned together with a selectable marker gene between flanking sequences homologous to the chloroplast genome. These homologous flanking sequences direct site specific integration into the plastome. Plastidal transformation has been described for many different plant species and an overview is given in Bock (2001) Transgenic plastids in basic research and plant biotechnology. J Mol Biol. 2001 Sep 21; 312 (3):425-38 or Maliga, P (2003) Progress towards commercialization of plastid transformation technology. Trends Biotechnol. 21, 20-28. Further biotechnological progress has recently been reported in form of marker free plastid transformants, which can be produced by a transient co-integrated maker gene (Klaus et al., 2004, Nature Biotechnology 22(2), 225-229). The genetically modified plant cells can be regenerated via all methods with which the skilled worker is familiar. Suitable methods can be found in the abovementioned publications by S.D. Kung and R. Wu, Potrykus or Hofgen and Willmitzer.


Generally after transformation, plant cells or cell groupings are selected for the presence of one or more markers which are encoded by plant-expressible genes co-transferred with the gene of interest, following which the transformed material is regenerated into a whole plant. To select transformed plants, the plant material obtained in the transformation is, as a rule, subjected to selective conditions so that transformed plants can be distinguished from untransformed plants. For example, the seeds obtained in the above-described manner can be planted and, after an initial growing period, subjected to a suitable selection by spraying. A further possibility consists in growing the seeds, if appropriate after sterilization, on agar plates using a suitable selection agent so that only the transformed seeds can grow into plants. Alternatively, the transformed plants are screened for the presence of a selectable marker such as the ones described above.


Following DNA transfer and regeneration, putatively transformed plants may also be evaluated, for instance using Southern analysis, for the presence of the gene of interest, copy number and/or genomic organisation. Alternatively or additionally, expression levels of the newly introduced DNA may be monitored using Northern and/or Western analysis, both techniques being well known to persons having ordinary skill in the art.


The generated transformed plants may be propagated by a variety of means, such as by clonal propagation or classical breeding techniques. For example, a first generation (or T1) transformed plant may be selfed and homozygous second-generation (or T2) transformants selected, and the T2 plants may then further be propagated through classical breeding techniques. The generated transformed organisms may take a variety of forms. For example, they may be chimeras of transformed cells and non-transformed cells; clonal transformants (e.g., all cells transformed to contain the expression cassette); grafts of transformed and untransformed tissues (e.g., in plants, a transformed rootstock grafted to an untransformed scion).


Preferably, the wild-type or mutated PPO nucleic acid comprises a polynucleotide sequence selected from the group consisting of : a) a polynucleotide encoding a polypeptide as shown in SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 5 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637,or a variant or derivative thereof; b) a polynucleotide comprising at least 60 consecutive nucleotides of any of a); and c) a polynucleotide complementary to the polynucleotide of any of a) through b).


Preferably, the expression of the nucleic acid in the plant results in the plant's increased resistance to uracilpyridine herbicide as compared to a wild type variety of the plant.


In another embodiment, the invention refers to a plant, preferably a transgenic plant, comprising a plant cell according to the present invention, wherein expression of the nucleic acid in the plant results in the plant's increased resistance to uracilpyridine herbicide as compared to a wild type variety of the plant.


The plants described herein can be either transgenic crop plants or non-transgenic plants.


For the purposes of the invention, “transgenic”, “transgene” or “recombinant” means with regard to, for example, a nucleic acid sequence, an expression cassette, gene construct or a vector comprising the nucleic acid sequence or an organism transformed with the nucleic acid sequences, expression cassettes or vectors according to the invention, all those constructions brought about by recombinant methods in which either

    • (a) the nucleic acid sequences encoding proteins useful in the methods of the invention, or
    • (b) genetic control sequence(s) which is operably linked with the nucleic acid sequence according to the invention, for example a promoter, or
    • (c) a) and b)


      are not located in their natural genetic environment or have been modified by recombinant methods, it being possible for the modification to take the form of, for example, a substitution, addition, deletion, inversion or insertion of one or more nucleotide residues in order to allow for the expression of the mutated PPO of the present invention. The natural genetic environment is understood as meaning the natural genomic or chromosomal locus in the original plant or the presence in a genomic library. In the case of a genomic library, the natural genetic environment of the nucleic acid sequence is preferably retained, at least in part. The environment flanks the nucleic acid sequence at least on one side and has a sequence length of at least 50 bp, preferably at least 500 bp, especially preferably at least 1000 bp, most preferably at least 5000 bp. A naturally occurring expression cassette—for example the naturally occurring combination of the natural promoter of the nucleic acid sequences with the corresponding nucleic acid sequence encoding a polypeptide useful in the methods of the present invention, as defined above—becomes a transgenic expression cassette when this expression cassette is modified by non-natural, synthetic (“artificial”) methods such as, for example, mutagenic treatment. Suitable methods are described, for example, in U.S. Pat. No. 5,565,350 or WO 00/15815.


A transgenic plant for the purposes of the invention is thus understood as meaning, as above, that the nucleic acids of the invention are not at their natural locus in the genome of said plant, it being possible for the nucleic acids to be expressed homologously or heterologously. However, as mentioned, transgenic also means that, while the nucleic acids according to the invention or used in the inventive method are at their natural position in the genome of a plant, the sequence has been modified with regard to the natural sequence, and/or that the regulatory sequences of the natural sequences have been modified. Transgenic is preferably understood as meaning the expression of the nucleic acids according to the invention at an unnatural locus in the genome, i.e. homologous or, preferably, heterologous expression of the nucleic acids takes place. Preferred transgenic plants are mentioned herein. Furthermore, the term “transgenic” refers to any plant, plant cell, callus, plant tissue, or plant part, that contains all or part of at least one recombinant polynucleotide. In many cases, all or part of the recombinant polynucleotide is stably integrated into a chromosome or stable extra-chromosomal element, so that it is passed on to successive generations. For the purposes of the invention, the term “recombinant polynucleotide” refers to a polynucleotide that has been altered, rearranged, or modified by genetic engineering. Examples include any cloned polynucleotide, or polynucleotides, that are linked or joined to heterologous sequences. The term “recombinant” does not refer to alterations of polynucleotides that result from naturally occurring events, such as spontaneous mutations, or from non-spontaneous mutagenesis followed by selective breeding.


Plants containing mutations arising due to non-spontaneous mutagenesis and selective breeding are referred to herein as non-transgenic plants and are included in the present invention. In embodiments wherein the plant is transgenic and comprises multiple mutated PPO nucleic acids, the nucleic acids can be derived from different genomes or from the same genome. Alternatively, in embodiments wherein the plant is non-transgenic and comprises multiple mutated PPO nucleic acids, the nucleic acids are located on different genomes or on the same genome.


As used herein, “mutagenized” refers to an organism or DNA thereof having alteration(s) in the biomolecular sequence of its native genetic material as compared to the sequence of the genetic material of a corresponding wild-type organism or DNA, wherein the alteration(s) in genetic material were induced and/or selected by human action. Methods of inducing mutations can induce mutations in random positions in the genetic material or can induce mutations in specific locations in the genetic material (i.e., can be directed mutagenesis techniques), such as by use of a genoplasty technique.


In certain embodiments, the present invention involves herbidicide-resistant plants that are produced by mutation breeding. Such plants comprise a polynucleotide encoding a mutated PPO and are tolerant to one or more uracilpyridine herbicides. Such methods can involve, for example, exposing the plants or seeds to a mutagen, particularly a chemical mutagen such as, for example, ethyl methanesulfonate (EMS) and selecting for plants that have enhanced tolerance to at least one or more uracilpyridine herbicide.


However, the present invention is not limited to herbicide-tolerant plants that are produced by a mutagenesis method involving the chemical mutagen EMS. Any mutagenesis method known in the art may be used to produce the herbicide-resistant plants of the present invention. Such mutagenesis methods can involve, for example, the use of any one or more of the following mutagens: radiation, such as X-rays, Gamma rays (e.g., cobalt 60 or cesium 137), neutrons, (e.g., product of nuclear fission by uranium 235 in an atomic reactor), Beta radiation (e.g., emitted from radioisotopes such as phosphorus 32 or carbon 14), and ultraviolet radiation (preferably from 2500 to 2900 nm), and chemical mutagens such as base analogues (e.g., 5-bromo-uracil), related compounds (e.g., 8-ethoxy caffeine), antibiotics (e.g., streptonigrin), alkylating agents (e.g., sulfur mustards, nitrogen mustards, epoxides, ethylenamines, sulfates, sulfonates, sulfones, lactones), azide, hydroxylamine, nitrous acid, or acridines. Herbicide-resistant plants can also be produced by using tissue culture methods to select for plant cells comprising herbicide-resistance mutations and then regenerating herbicide-resistant plants therefrom. See, for example, U.S. Pat. Nos. 5,773,702 and 5,859,348, both of which are herein incorporated in their entirety by reference. Further details of mutation breeding can be found in “Principals of Cultivar Development” Fehr, 1993 Macmillan Publishing Company the disclosure of which is incorporated herein by reference


Alternatively, herbicide-resistant plants according to the present invention can also be produced by using genome editing methods to select for plant cells comprising herbicide-resistance mutations and then regenerating herbicide-resistant plants therefrom. “Genome Editing” refers to a type of genetic engineering in which DNA is inserted, deleted or replaced in the genome of an organism using engineered nucleases.These nucleases are known to the skilled artisan to create site-specific double-strand breaks at desired locations in the genome. The induced double-strand breaks are repaired through nonhomologous end-joining or homologous recombination, resulting in targeted mutations. Known in the art are currently four families of engineered nucleases which can be used for the puposes of the present invention: meganucleases, zinc finger nucleases (ZFNs), transcription activator-like effector-based nucleases (TALEN), and the CRISPR-Cas system.-For references, see, for example, Esvelt, K M. and Wang, H H. (2013) “Genome-scale engineering for systems and synthetic biology”, Mol Syst Biol. 9 (1): 641; Tan, WS. et al., (2012) “Precision editing of large animal genomes”, Adv Genet. 80: 37-97; Puchta, H. and Fauser, F. (2013) “Gene targeting in plants: 25 years later”, Int. J. Dev. Biol. 57: 629-637; Boglioli, Elsy and Richard, Magali “Rewriting the book of life: a new era in precision genome editing”, Boston Consulting Group, Retrieved Nov. 30, 2015; Method of the Year 2011. Nat Meth 9 (1), 1-1.


Conesequently, in another embodiment, the invention refers to a non-transgenic plant, comprising a plant cell according to the present invention, wherein expression of the nucleic acid encoding a mutated PPO in the plant results in the plant's increased resistance to uracilpyridine herbicide as compared to a wild type variety of the plant.


In addition to the definition above, the term “plant” is intended to encompass crop plants at any stage of maturity or development, as well as any tissues or organs (plant parts) taken or derived from any such plant unless otherwise clearly indicated by context. Plant parts include, but are not limited to, stems, roots, flowers, ovules, stamens, leaves, embryos, meristematic regions, callus tissue, anther cultures, gametophytes, sporophytes, pollen, microspores, protoplasts, and the like.


The plant of the present invention comprises at least one mutated PPO nucleic acid or over-expressed wild-type PPO nucleic acid, and has increased tolerance to a uracilpyridine herbicide as compared to a wild-type variety of the plant. It is possible for the plants of the present invention to have multiple wild-type or mutated PPO nucleic acids from different genomes since these plants can contain more than one genome. For example, a plant contains two genomes, usually referred to as the A and B genomes. Because PPO is a required metabolic enzyme, it is assumed that each genome has at least one gene coding for the PPO enzyme (i.e. at least one PPO gene). As used herein, the term “PPO gene locus” refers to the position of an PPO gene on a genome, and the terms “PPO gene” and “PPO nucleic acid” refer to a nucleic acid encoding the PPO enzyme. The PPO nucleic acid on each genome differs in its nucleotide sequence from an PPO nucleic acid on another genome. One of skill in the art can determine the genome of origin of each PPO nucleic acid through genetic crossing and/or either sequencing methods or exonuclease digestion methods known to those of skill in the art.


The present invention includes plants comprising one, two, three, or more mutated PPO alleles, wherein the plant has increased tolerance to a uracilpyridine herbicide as compared to a wild-type variety of the plant. The mutated PPO alleles can comprise a nucleotide sequence selected from the group consisting of a polynucleotide encoding a polypeptide as defined in SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, 265, 266, 5 267, 268, 269, 270, 271, 272, 273, 274, 275, 276, 277, 278, 279, 280, 281, 282, 283, 284, 285, 286, 287, 288, 289, 290, 291, 292, 293, 294, 295, 296, 297, 298, 299, 300, 301, 302, 303, 304, 305, 306, 307, 308, 309, 310, 311, 312, 313, 314, 315, 316, 317, 318, 319, 320, 321, 322, 323, 324, 325, 326, 327328, 329, 330, 331, 332, 333, 334, 335, 336, 337, 338, 339, 340, 341, 342, 343, 344, 345, 346, 347, 348, 349, 350, 351, 352, 353, 354, 355, 356, 357, 358, 359, 360, 361, 10 362, 363, 364, 365, 366, 367, 368, 369, 370, 371, 372, 373, 374, 375, 376, 377, 378, 379, 380, 381, 382, 383, 384, 385, 386, 387, 388, 389, 390, 391, 392, 393, 394, 395, 396, 397, 398, 399, 400, 401, 402, 403, 404, 405, 406, 407, 408, 409, 410, 411, 412, 413, 414, 415, 416, 417, 418, 419, 420, 421, 422, 423, 424, 425, 426, 427, 428, 429, 430, 431, 432, 433, 434, 435, 436, 437, 438, 439, 440, 441, 442, 443, 444, 445, 446, 447, 448, 449, 450, 451, 452, 453, 454, 455, 456, 15 457, 458, 459, 460, 461, 462, 463, 464, 465, 466, 467, 468, 469, 470, 471, 472, 473, 474, 475, 476, 477, 478, 479, 480, 481, 482, 483, 484, 485, 486, 487, 488, 489, 490, 491, 492, 493, 494, 495, 496, 497, 498, 499, 500, 501, 502, 503, 504, 505, 506, 507, 508, 509, 510, 511, 512, 513, 514, 515, 516, 517, 518, 519, 520, 521, 522, 523, 524, 525, 526, 527, 528, 529, 530, 531, 532, 533, 534, 535, 536, 537, 538, 539, 540, 541, 542, 543, 544, 545, 546, 20 547, 548, 549, 550, 551, 552, 553, 554, 555, 556, 557, 558, 559, 560, 561, 562, 563, 564, 565, or a variant or derivative, homologue, orthologue, paralogue thereof, a polynucleotide comprising at least 60 consecutive nucleotides of any of the aforementioned polynucleotides; and a polynucleotide complementary to any of the aforementioned polynucleotides.


In a particularly preferred embodiment, the mutagenized plant refers to a rice plant of the species Oryza sativa which comprises a mutated PPO allele which comprises a polynucleotide encoding a polypeptide as defined in SEQ ID NO: 628, 629, 630, 631, 632, 633, 634, 635, or 636.


Preferably, the polynucleotide comprises a nucleic acid sequence as defined in SEQ ID NO: 638, 639, 640, 641, 642, 643, 644, 645, 646, 647, 648, or 649.


Said mutated rice lines were deposited under the terms of the Budapest Treaty on November 08, 2017, and have been assigned the NClMB accession numbers 42873, 42876, 42878, 42871, 42874, 42875, 42870, 42877, and 42872.


“Alleles” or “allelic variants” are alternative forms of a given gene, located at the same chromosomal position. Allelic variants encompass Single Nucleotide Polymorphisms (SNPs), as well as Small Insertion/Deletion Polymorphisms (INDELs). The size of INDELs is usually less than 100 bp. SNPs and INDELs form the largest set of sequence variants in naturally occurring polymorphic strains of most organisms


The term “variety” refers to a group of plants within a species defined by the sharing of a common set of characteristics or traits accepted by those skilled in the art as sufficient to distinguish one cultivar or variety from another cultivar or variety. There is no implication in either term that all plants of any given cultivar or variety will be genetically identical at either the whole gene or molecular level or that any given plant will be homozygous at all loci. A cultivar or variety is considered “true breeding” for a particular trait if, when the true-breeding cultivar or variety is self-pollinated, all of the progeny contain the trait. The terms “breeding line” or “line” refer to a group of plants within a cultivar defined by the sharing of a common set of characteristics or traits accepted by those skilled in the art as sufficient to distinguish one breeding line or line from another breeding line or line. There is no implication in either term that all plants of any given breeding line or line will be genetically identical at either the whole gene or molecular level or that any given plant will be homozygous at all loci. A breeding line or line is considered “true breeding” for a particular trait if, when the true-breeding line or breeding line is self-pollinated, all of the progeny contain the trait. In the present invention, the trait arises from a mutation in a PPO gene of the plant or seed.


In some embodiments, traditional plant breeding is employed whereby the uracilpyridine herbicides-tolerant trait is introduced in the progeny plant resulting therefrom. In one embodiment, the present invention provides a method for producing a uracilpyridine herbicides-tolerant progeny plant, the method comprising: crossing a parent plant with a uracilpyridine herbicides-tolerant plant to introduce the uracilpyridine herbicides-tolerance characteristics of the uracilpyridine herbicides-tolerant plant into the germplasm of the progeny plant, wherein the progeny plant has increased tolerance to the uracilpyridine herbicides relative to the parent plant. In other embodiments, the method further comprises the step of introgressing the uracilpyridine herbicides-tolerance characteristics through traditional plant breeding techniques to obtain a descendent plant having the uracilpyridine herbicides-tolerance characteristics.


The herbicide-resistant plants of the invention that comprise polynucleotides encoding mutated PPO polypeptides also find use in methods for increasing the herbicide-resistance of a plant through conventional plant breeding involving sexual reproduction. The methods comprise crossing a first plant that is a herbicide-resistant plant of the invention to a second plant that may or may not be resistant to the same herbicide or herbicides as the first plant or may be resistant to different herbicide or herbicides than the first plant. The second plant can be any plant that is capable of producing viable progeny plants (i.e., seeds) when crossed with the first plant. Typically, but not necessarily, the first and second plants are of the same species. The methods can optionally involve selecting for progeny plants that comprise the mutated PPO polypeptides of the first plant and the herbicide resistance characteristics of the second plant. The progeny plants produced by this method of the present invention have increased resistance to a herbicide when compared to either the first or second plant or both. When the first and second plants are resistant to different herbicides, the progeny plants will have the combined herbicide tolerance characteristics of the first and second plants. The methods of the invention can further involve one or more generations of backcrossing the progeny plants of the first cross to a plant of the same line or genotype as either the first or second plant. Alternatively, the progeny of the first cross or any subsequent cross can be crossed to a third plant that is of a different line or genotype than either the first or second plant. The present invention also provides plants, plant organs, plant tissues, plant cells, seeds, and non-human host cells that are transformed with the at least one polynucleotide molecule, expression cassette, or transformation vector of the invention. Such transformed plants, plant organs, plant tissues, plant cells, seeds, and non-human host cells have enhanced tolerance or resistance to at least one herbicide, at levels of the herbicide that kill or inhibit the growth of an untransformed plant, plant tissue, plant cell, or non-human host cell, respectively. Preferably, the transformed plants, plant tissues, plant cells, and seeds of the invention are Arabidopsis thaliana and crop plants.


In other aspects, plants of the invention include those plants which, in addition to being tolerant to uracilpyridine herbicides, have been subjected to further genetic modifications by breeding, mutagenesis or genetic engineering, e.g. have been rendered tolerant to applications of specific other classes of herbicides, such as AHAS inhibitors; auxinic herbicides; bleaching herbicides such as hydroxyphenylpyruvate dioxygenase (HPPD) inhibitors or phytoene desaturase (PDS) inhibitors; EPSPS inhibitors such as glyphosate; glutamine synthetase (GS) inhibitors such as glufosinate; lipid biosynthesis inhibitors such as acetyl CoA carboxylase (ACCase) inhibitors; or oxynil (i.e. bromoxynil or ioxynil) herbicides as a result of conventional methods of breeding or genetic engineering, Thus, uracilpyridine herbicides-tolerant plants of the invention can be made resistant to multiple classes of herbicides through multiple genetic modifications, such as resistance to both glyphosate and glufosinate or to both glyphosate and a herbicide from another class such as HPPD inhibitors, AHAS inhibitors, or ACCase inhibitors. These herbicide resistance technologies are, for example, described in Pest Management Science (at volume, year, page): 61, 2005, 246; 61, 2005, 258; 61, 2005, 277; 61, 2005, 269; 61, 2005, 286; 64, 2008, 326; 64, 2008, 332; Weed Science 57, 2009, 108; Australian Journal of Agricultural Research 58, 2007, 708; Science 316, 2007, 1185; and references quoted therein. For example, uracilpyridine herbicides-tolerant plants of the invention, in some embodiments, may be tolerant to ACCase inhibitors, such as “dims” (e.g., cycloxydim, sethoxydim, clethodim, or tepraloxydim), “fops” (e.g. , clodinafop, diclofop, fluazifop, haloxyfop, or quizalofop), and “dens” (such as pinoxaden); to auxinic herbicides, such as dicamba; to EPSPS inhibitors, such as glyphosate; to other PPO inhibitors; and to GS inhibitors, such as glufosinate.


In addition to these classes of inhibitors, uracilpyridine herbicides-tolerant plants of the invention may also be tolerant to herbicides having other modes of action, for example, chlorophyll/carotenoid pigment inhibitors, cell membrane disrupters, photosynthesis inhibitors, cell division inhibitors, root inhibitors, shoot inhibitors, and combinations thereof.


Such tolerance traits may be expressed, e.g. : as mutant or wildtype PPO proteins, as mutant AHASL proteins, mutant ACCase proteins, mutant EPSPS proteins, or mutant glutamine synthetase proteins; or as mutant native, inbred, or transgenic aryloxyalkanoate dioxygenase (AAD or DHT), haloarylnitrilase (BXN), 2,2-dichloropropionic acid dehalogenase (DEH), glyphosate-N- acetyltransferase (GAT), glyphosate decarboxylase (GDC), glyphosate oxidoreductase (GOX), glutathione-S-transferase (GST), phosphinothricin acetyltransferase (PAT or bar), or CYP450s proteins having an herbicide-degrading activity.


uracilpyridine herbicides- tolerant plants hereof can also be stacked with other traits including, but not limited to, pesticidal traits such as Bt Cry and other proteins having pesticidal activity toward coleopteran, lepidopteran, nematode, or other pests; nutrition or nutraceutical traits such as modified oil content or oil profile traits, high protein or high amino acid concentration traits, and other trait types known in the art.


Furthermore, in other embodiments, uracilpyridine herbicides-tolerant plants are also covered which are, by the use of recombinant DNA techniques and/or by breeding and/or otherwise selected for such characteristics, rendered able to synthesize one or more insecticidal proteins, especially those known from the bacterial genus Bacillus, particularly from Bacillus thuringiensis, such as [delta]-endotoxins, e.g. CrylA(b), CrylA(c), CryIF, CryIF(a2), CryllA(b), CryIIIA, CryIIIB(b1) or Cry9c; vegetative insecticidal proteins (VIP), e.g. VIP1, VIP2, VIP3 or VIP3A; insecticidal proteins of bacteria colonizing nematodes, e.g. Photorhabdus spp. or Xenorhabdus spp.; toxins produced by animals, such as scorpion toxins, arachnid toxins, wasp toxins, or other insect-specific neurotoxins; toxins produced by fungi, such streptomycete toxins; plant lectins, such as pea or barley lectins; agglutinins; proteinase inhibitors, such as trypsin inhibitors, serine protease inhibitors, patatin, cystatin or papain inhibitors; ribosome-inactivating proteins (RIP), such as ricin, maize-RIP, abrin, luffin, saporin or bryodin; steroid metabolism enzymes, such as 3-hydroxy-steroid oxidase, ecdysteroid-IDP-glycosyl-transferase, cholesterol oxidases, ecdysone inhibitors or HMG- CoA-reductase; ion channel blockers, such as blockers of sodium or calcium channels; juvenile hormone esterase; diuretic hormone receptors (helicokinin receptors); stilben synthase, bibenzyl synthase, chitinases or glucanases. In the context of the present invention these insecticidal proteins or toxins are to be understood expressly also as pre-toxins, hybrid proteins, truncated or otherwise modified proteins. Hybrid proteins are characterized by a new combination of protein domains, (see, e.g. WO 02/015701). Further examples of such toxins or genetically modified plants capable of synthesizing such toxins are disclosed, e.g., in EP-A 374 753, WO 93/007278, WO 95/34656, EP-A 427 529, EP-A 451 878, WO 03/18810 and WO 03/52073. The methods for producing such genetically modified plants are generally known to the person skilled in the art and are described, e.g. in the publications mentioned above. These insecticidal proteins contained in the genetically modified plants impart to the plants producing these proteins tolerance to harmful pests from all taxonomic groups of arthropods, especially to beetles (Coeloptera), two-winged insects (Diptera), and moths (Lepidoptera) and to nematodes (Nematoda).


In some embodiments, expression of one or more protein toxins (e.g., insecticidal proteins) in the uracilpyridine herbicides-tolerant plants is effective for controlling organisms that include, for example, members of the classes and orders: Coleoptera such as the American bean weevil Acanthoscelides obtectus; the leaf beetle Agelastica alni; click beetles (Agriotes lineatus, Agriotes obscurus, Agriotes bicolor); the grain beetle Ahasverus advena; the summer schafer Amphimallon solstitialis; the furniture beetle Anobium punctatum; Anthonomus spp. (weevils); the Pygmy mangold beetle Atomaria linearis; carpet beetles (Anthrenus spp., Attagenus spp.); the cowpea weevil Callosobruchus maculates; the fried fruit beetle Carpophilus hemipterus; the cabbage seedpod weevil Ceutorhynchus assimilis; the rape winter stem weevil Ceutorhynchus picitarsis; the wireworms Conoderus vespertinus and Conoderus falli; the banana weevil Cosmopolites sordidus; the New Zealand grass grub Costelytra zealandica; the June beetle Cotinis nitida; the sunflower stem weevil Cylindrocopturus adspersus; the larder beetle Dermestes lardarius; the corn rootworms Diabrotica virgifera, Diabrotica virgifera virgifera, and Diabrotica barberi; the Mexican bean beetle Epilachna varivestis; the old house borer Hylotropes bajulus; the lucerne weevil Hypera postica; the shiny spider beetle Gibbium psylloides; the cigarette beetle Lasioderma serricorne; the Colorado potato beetle Leptinotarsa decemlineata; Lyctus beetles {Lyctus spp. , the pollen beetle Meligethes aeneus; the common cockshafer Melolontha melolontha; the American spider beetle Mezium americanum; the golden spider beetle Niptus hololeuc s; the grain beetles Oryzaephilus surinamensis and Oryzaephilus Mercator; the black vine weevil Otiorhynchus sulcatus; the mustard beetle Phaedon cochleariae, the crucifer flea beetle Phyllotreta cruciferae; the striped flea beetle Phyllotreta striolata; the cabbage steam flea beetle Psylliodes chrysocephala; Ptinus spp. (spider beetles); the lesser grain borer Rhizopertha dominica; the pea and been weevil Sitona lineatus; the rice and granary beetles Sitophilus oryzae and Sitophilus granaries; the red sunflower seed weevil Smicronyx fulvus; the drugstore beetle Stegobium paniceum; the yellow mealworm beetle Tenebrio molitor, the flour beetles Tribolium castaneum and Tribolium confusum; warehouse and cabinet beetles (Trogoderma spp.); the sunflower beetle Zygogramma exclamationis; Dermaptera (earwigs) such as the European earwig Forficula auricularia and the striped earwig Labidura riparia; Dictyoptera such as the oriental cockroach Blatta orientalis; the greenhouse millipede Oxidus gracilis; the beet fly Pegomyia betae; the frit fly Oscinella frit; fruitflies (Dacus spp., Drosophila spp.); Isoptera (termites) including species from the familes Hodotermitidae, Kalotermitidae, Mastotermitidae, Rhinotermitidae, Serritermitidae, Termitidae, Termopsidae; the tarnished plant bug Lygus lineolaris; the black bean aphid Aphis fabae; the cotton or melon aphid Aphis gossypii; the green apple aphid Aphis pomi; the citrus spiny whitefly Aleurocanthus spiniferus; the sweet potato whitefly Bemesia tabaci; the cabbage aphid Brevicoryne brassicae; the pear psylla Cacopsylla pyricola; the currant aphid Cryptomyzus ribis; the grape phylloxera Daktulosphaira vitifoliae; the citrus psylla Diaphorina citri; the potato leafhopper Empoasca fabae; the bean leafhopper Empoasca Solana; the vine leafhopper Empoasca vitis; the woolly aphid Eriosoma lanigerum; the European fruit scale Eulecanium corni; the mealy plum aphid Hyalopterus arundinis; the small brown planthopper Laodelphax striatellus; the potato aphid Macrosiphum euphorbiae; the green peach aphid Myzus persicae; the green rice leafhopper Nephotettix cinticeps; the brown planthopper Nilaparvata lugens; the hop aphid Phorodon humuli; the bird-cherry aphid Rhopalosiphum padi; the grain aphid Sitobion avenae; Lepidoptera such as Adoxophyes orana (summer fruit tortrix moth); Archips podana (fruit tree tortrix moth); Bucculatrix pyrivorella (pear leafminer); Bucculatrix thurberiella (cotton leaf perforator); Bupalus piniarius (pine looper); Carpocapsa pomonella (codling moth); Chilo suppressalis (striped rice borer); Choristoneura fumiferana (eastern spruce budworm); Cochylis hospes (banded sunflower moth); Diatraea grandiosella (southwestern corn borer); Eupoecilia ambiguella (European grape berry moth); Helicoverpa armigera (cotton bollworm); Helicoverpa zea (cotton bollworm); Heliothis vires cens (tobacco budworm), Homeosoma electellum (sunflower moth); Homona magnanima (oriental tea tree tortrix moth); Lithocolletis blancardella (spotted tentiform leafminer); Lymantria dispar (gypsy moth); Malacosoma neustria (tent caterpillar); Mamestra brassicae (cabbage armyworm); Mamestra configurata (Bertha armyworm); Operophtera brumata (winter moth); Ostrinia nubilalis (European corn borer), Panolis flammea (pine beauty moth), Phyllocnistis citrella (citrus leafminer); Pieris brassicae (cabbage white butterfly); Rachiplusia ni (soybean looper); Spodoptera exigua (beet armywonn); Spodoptera littoralis (cotton leafworm); Sylepta derogata (cotton leaf roller); Trichoplusia ni (cabbage looper); Orthoptera such as the common cricket Acheta domesticus, tree locusts (Anacridium spp.), the migratory locust Locusta migratoria, the twostriped grasshopper Melanoplus bivittatus, the differential grasshopper Melanoplus differ entialis, the redlegged grasshopper Melanoplus femurrubrum, the migratory grasshopper Melanoplus sanguinipes, the northern mole cricket Neocurtilla hexadectyla, the red locust Nomadacris septemfasciata, the shortwinged mole cricket Scapteriscus abbreviatus, the southern mole cricket Scapteriscus borellii, the tawny mole cricket Scapteriscus vicinus, and the desert locust Schistocerca gregaria; Symphyla such as the garden symphylan Scutigerella immaculata; Thysanoptera such as the tobacco thrips Frankliniella fusca, the flower thrips Frankliniella intonsa, the western flower thrips Frankliniella occidentalism the cotton bud thrips Frankliniella schultzei, the banded greenhouse thrips Hercinothrips femoralis, the soybean thrips Neohydatothrips variabilis, Kelly's citrus thrips Pezothrips kellyanus, the avocado thrips Scirtothrips perseae, the melon thrips Thrips palmi, and the onion thrips Thrips tabaci; and the like, and combinations comprising one or more of the foregoing organisms.


In some embodiments, expression of one or more protein toxins (e.g., insecticidal proteins) in the uracilpyridine herbicides-tolerant plants is effective for controlling flea beetles, i.e. members of the flea beetle tribe of family Chrysomelidae, preferably against Phyllotreta spp., such as Phyllotreta cruciferae and/or Phyllotreta triolata. In other embodiments, expression of one or more protein toxins (e.g., insecticidal proteins) in the uracilpyridine herbicides- tolerant plants is effective for controlling cabbage seed pod weevil, the Bertha armyworm, Lygus bugs, or the diamondback moth. Furthermore, in one embodiment, uracilpyridine herbicides-tolerant plants are also covered which are, e.g. by the use of recombinant DNA techniques and/or by breeding and/or otherwise selected for such traits, rendered able to synthesize one or more proteins to increase the resistance or tolerance of those plants to bacterial, viral or fungal pathogens. The methods for producing such genetically modified plants are generally known to the person skilled in the art.


Furthermore, in another embodiment, uracilpyridine herbicides-tolerant plants are also covered which are, e.g. by the use of recombinant DNA techniques and/or by breeding and/or otherwise selected for such traits, rendered able to synthesize one or more proteins to increase the productivity (e.g. oil content), tolerance to drought, salinity or other growth- limiting environmental factors or tolerance to pests and fungal, bacterial or viral pathogens of those plants.


Furthermore, in other embodiments, uracilpyridine herbicides-tolerant plants are also covered which are, e.g. by the use of recombinant DNA techniques and/or by breeding and/or otherwise selected for such traits, altered to contain a modified amount of one or more substances or new substances, for example, to improve human or animal nutrition, e.g. oil crops that produce health-promoting long-chain omega-3 fatty acids or unsaturated omega-9 fatty acids (e.g. Nexera(R) rape, Dow Agro Sciences, Canada).


Furthermore, in some embodiments, uracilpyridine herbicides-tolerant plants are also covered which are, e.g. by the use of recombinant DNA techniques and/or by breeding and/or otherwise selected for such traits, altered to contain increased amounts of vitamins and/or minerals, and/or improved profiles of nutraceutical compounds.


In one embodiment, uracilpyridine herbicides-tolerant plants of the present invention, relative to a wild-type plant, comprise an increased amount of, or an improved profile of, a compound selected from the group consisting of: glucosinolates (e.g., glucoraphanin (4-methylsulfinylbutyl-glucosinolate), sulforaphane, 3-indolylmethyl-glucosinolate(glucobrassicin), I -methoxy-3-indolylmethyl-glucosinolate (neoglucobrassicin)); phenolics (e.g., flavonoids (e.g., quercetin, kaempferol), hydroxycinnamoyl derivatives (e.g., 1 ,2,2′- trisinapoylgentiobiose, 1 ,2-diferuloylgentiobiose, I ,2′-disinapoyl-2-feruloylgentiobiose, 3-O-caffeoyl-quinic (neochlorogenic acid)); and vitamins and minerals (e.g., vitamin C, vitamin E, carotene, folic acid, niacin, riboflavin, thiamine, calcium, iron, magnesium, potassium, selenium, and zinc).


In another embodiment, uracilpyridine herbicides-tolerant plants of the present invention, relative to a wild-type plant, comprise an increased amount of, or an improved profile of, a compound selected from the group consisting of: progoitrin; isothiocyanates; indoles (products of glucosinolate hydrolysis); glutathione; carotenoids such as beta-carotene, lycopene, and the xanthophyll carotenoids such as lutein and zeaxanthin; phenolics comprising the flavonoids such as the flavonols (e.g. quercetin, rutin), the flavans/tannins (such as the procyanidins comprising coumarin, proanthocyanidins, catechins, and anthocyanins); flavones; phytoestrogens such as coumestans, lignans, resveratrol, isoflavones e.g. genistein, daidzein, and glycitein; resorcyclic acid lactones; organosulphur compounds; phytosterols; terpenoids such as carnosol, rosmarinic acid, glycyrrhizin and saponins; chlorophyll; chlorphyllin, sugars, anthocyanins, and vanilla. In other embodiments, uracilpyridine herbicides-tolerant plants of the present invention, relative to a wild-type plant, comprise an increased amount of, or an improved profile of, a compound selected from the group consisting of: vincristine, vinblastine, taxanes (e.g., taxol (paclitaxel), baccatin III, 10-desacetylbaccatin III, 10-desacetyl taxol, xylosyl taxol, 7- epitaxol, 7-epibaccatin III, 10-desacetylcephalomannine, 7-epicephalomannine, taxotere, cephalomannine, xylosyl cephalomannine, taxagifine, 8-benxoyloxy taxagifine, 9-acetyloxy taxusin, 9-hydroxy taxusin, taiwanxam, taxane la, taxane Ib, taxane Ic, taxane Id, GMP paclitaxel, 9-dihydro 13-acetylbaccatin III, 10-desacetyl-7-epitaxol, tetrahydrocannabinol (THC), cannabidiol (CBD), genistein, diadzein, codeine, morphine, quinine, shikonin, ajmalacine, serpentine, and the like.


It is to be understood that the plant of the present invention can comprise a wild type PPO nucleic acid in addition to a mutated PPO nucleic acid. It is contemplated that the uracilpyridine herbicide tolerant lines may contain a mutation in only one of multiple PPO isoenzymes. Therefore, the present invention includes a plant comprising one or more mutated PPO nucleic acids in addition to one or more wild type PPO nucleic acids.


In another embodiment, the invention refers to a seed produced by a transgenic plant comprising a plant cell of the present invention, wherein the seed is true breeding for an increased resistance to a uracilpyridine herbicide as compared to a wild type variety of the seed.


In another embodiment, the invention refers to a method of producing a transgenic plant cell with an increased resistance to a uracilpyridine herbicide as compared to a wild type variety of the plant cell comprising, transforming the plant cell with an expression cassette comprising a mutated PPO nucleic acid.


In another embodiment, the invention refers to a method of producing a transgenic plant comprising, (a) transforming a plant cell with an expression cassette comprising a mutated PPO nucleic acid, and (b) generating a plant with an increased resistance to uracilpyridine herbicide from the plant cell.


Consequently, mutated PPO nucleic acids of the invention are provided in expression cassettes for expression in the plant of interest. The cassette will include regulatory sequences operably linked to a mutated PPO nucleic acid sequence of the invention. The term “regulatory element” as used herein refers to a polynucleotide that is capable of regulating the transcription of an operably linked polynucleotide. It includes, but not limited to, promoters, enhancers, introns, 5′ UTRs, and 3′ UTRs. By “operably linked” is intended a functional linkage between a promoter and a second sequence, wherein the promoter sequence initiates and mediates transcription of the DNA sequence corresponding to the second sequence. Generally, operably linked means that the nucleic acid sequences being linked are contiguous and, where necessary to join two protein coding regions, contiguous and in the same reading frame. The cassette may additionally contain at least one additional gene to be cotransformed into the organism. Alternatively, the additional gene(s) can be provided on multiple expression cassettes.


In a preferred embodiment, the expression cassette comprises the sequence of SEQ ID NO: 240, 241, 242, 243, 244, 245, 246, 247, 248, 249, 250, 251, 252, 253, 254, 255, 256, 257, 258, 259, 260, 261, 262, or 264.


Such an expression cassette is provided with a plurality of restriction sites for insertion of the mutated PPO nucleic acid sequence to be under the transcriptional regulation of the regulatory regions. The expression cassette may additionally contain selectable marker genes.


The expression cassette of the present invention will include in the 5′-3′ direction of transcription, a transcriptional and translational initiation region (i.e., a promoter), a mutated PPO encoding nucleic acid sequence of the invention, and a transcriptional and translational termination region (i.e., termination region) functional in plants. The promoter may be native or analogous, or foreign or heterologous, to the plant host and/or to the mutated PPO nucleic acid sequence of the invention. Additionally, the promoter may be the natural sequence or alternatively a synthetic sequence. Where the promoter is “foreign” or “heterologous” to the plant host, it is intended that the promoter is not found in the native plant into which the promoter is introduced. Where the promoter is “foreign” or “heterologous” to the mutated PPO nucleic acid sequence of the invention, it is intended that the promoter is not the native or naturally occurring promoter for the operably linked mutated PPO nucleic acid sequence of the invention. As used herein, a chimeric gene comprises a coding sequence operably linked to a transcription initiation region that is heterologous to the coding sequence.


While it may be preferable to express the mutated PPO nucleic acids of the invention using heterologous promoters, the native promoter sequences may be used. Such constructs would change expression levels of the mutated PPO protein in the plant or plant cell. Thus, the phenotype of the plant or plant cell is altered.


The termination region may be native with the transcriptional initiation region, may be native with the operably linked mutated PPO sequence of interest, may be native with the plant host, or may be derived from another source (i.e., foreign or heterologous to the promoter, the mutated PPO nucleic acid sequence of interest, the plant host, or any combination thereof). Convenient termination regions are available from the Ti-plasmid of A. tumefaciens, such as the octopine synthase and nopaline synthase termination regions. See also Guerineau et al. (1991) Mol. Gen. Genet. 262: 141-144; Proudfoot (1991) Cell 64:671-674; Sanfacon et al. (1991) Genes Dev. 5: 141-149; Mogen et al. (1990) Plant Cell 2: 1261-1272; Munroe et al. (1990) Gene 91: 151-158; Ballas t al. 1989) Nucleic Acids Res. 17:7891-7903; and Joshi et al. (1987) Nucleic Acid Res. 15:9627-9639. Where appropriate, the gene(s) may be optimized for increased expression in the transformed plant. That is, the genes can be synthesized using plant-preferred codons for improved expression. See, for example, Campbell and Gowri (1990) Plant Physiol. 92: 1-11 for a discussion of host-preferred codon usage. Methods are available in the art for synthesizing plant-preferred genes. See, for example, U.S. Patent Nos. 5,380,831, and 5,436,391, and Murray et al. (1989) Nucleic Acids Res. 17:477-498, herein incorporated by reference.


Additional sequence modifications are known to enhance gene expression in a cellular host. These include elimination of sequences encoding spurious polyadenylation signals, exon-intron splice site signals, transposon-like repeats, and other such well-characterized sequences that may be deleterious to gene expression. The G-C content of the sequence may be adjusted to levels average for a given cellular host, as calculated by reference to known genes expressed in the host cell. When possible, the sequence is modified to avoid predicted hairpin secondary mRNA structures. Nucleotide sequences for enhancing gene expression can also be used in the plant expression vectors. These include the introns of the maize Adhl, intronl gene (Callis et al. Genes and Development 1: 1183-1200, 1987), and leader sequences, (W- sequence) from the Tobacco Mosaic virus (TMV), Maize Chlorotic Mottle Virus and Alfalfa Mosaic Virus (Gallie et al. Nucleic Acid Res. 15:8693-8711, 1987 and Skuzeski et al. Plant Mol. Biol. 15:65-79, 1990). The first intron from the shrunken- 1 locus of maize, has been shown to increase expression of genes in chimeric gene constructs. U.S. Pat. Nos. 5,424,412 and 5,593,874 disclose the use of specific introns in gene expression constructs, and Gallie et al. (Plant Physiol. 106:929-939, 1994) also have shown that introns are useful for regulating gene expression on a tissue specific basis. To further enhance or to optimize mutated PPO gene expression, the plant expression vectors of the invention may also contain DNA sequences containing matrix attachment regions (MARs). Plant cells transformed with such modified expression systems, then, may exhibit overexpression or constitutive expression of a nucleotide sequence of the invention.


The expression cassettes of the present invention may additionally contain 5′ leader sequences in the expression cassette construct. Such leader sequences can act to enhance translation. Translation leaders are known in the art and include: picornavirus leaders, for example, EMCV leader (Encephalomyocarditis 5′ noncoding region) (Elroy-Stein et al. (1989) Proc. Natl. Acad. ScL USA 86:6126-6130); potyvirus leaders, for example, TEV leader (Tobacco Etch Virus) (Gallie et al. (1995) Gene 165(2):233-238), MDMV leader (Maize Dwarf Mosaic Virus) (Virology 154:9-20), and human immunoglobulin heavy-chain binding protein (BiP) (Macejak et al. (1991) Nature 353:90-94); untranslated leader from the coat protein mRNA of alfalfa mosaic virus (AMV RNA 4) (Jobling et al. (1987) Nature 325:622-625); tobacco mosaic virus leader (TMV) (Gallie et al. (1989) in Molecular Biology of RNA, ed. Cech (Liss, New York), pp. 237-256); and maize chlorotic mottle virus leader (MCMV) (Lommel et al. (1991) Virology 81:382-385). See also, Della-Cioppa et al. (1987) Plant Physiol. 84:965-968. Other methods known to enhance translation can also be utilized, for example, introns, and the like.


In preparing the expression cassette, the various DNA fragments may be manipulated, so as to provide for the DNA sequences in the proper orientation and, as appropriate, in the proper reading frame. Toward this end, adapters or linkers may be employed to join the DNA fragments or other manipulations may be involved to provide for convenient restriction sites, removal of superfluous DNA, removal of restriction sites, or the like. For this purpose, in vitro mutagenesis, primer repair, restriction, annealing, resubstitutions, e.g., transitions and trans versions, may be involved.


A number of promoters can be used in the practice of the invention. The promoters can be selected based on the desired outcome. The nucleic acids can be combined with constitutive, tissue -preferred, or other promoters for expression in plants. Such constitutive promoters include, for example, the core promoter of the Rsyn7 promoter and other constitutive promoters disclosed in WO 99/43838 and U.S. Pat. No. 6,072,050; the core CaMV 35S promoter (Odell et al. (1985) Nature 313:810-812); rice actin (McElroy et al. (1990) Plant Cell 2: 163-171); ubiquitin (Christensen et al. (1989) Plant Mol. Biol. 12:619-632 and Christensen et al. (1992) Plant Mol. Biol. 18:675-689); pEMU (Last et al. (1991) Theor. Appl. Genet. 81:581- 588); MAS (Velten et al. (1984) EMBO J. 3:2723-2730); ALS promoter (U.S. Patent No. 5,659,026), and the like. Other constitutive promoters include, for example, U.S. Pat. Nos. 5,608,149; 5,608,144; 5,604,121; 5,569,597; 5,466,785; 5,399,680; 5,268,463; 5,608,142; and 6,177,611.


Tissue-preferred promoters can be utilized to target enhanced mutated PPO expression within a particular plant tissue. Such tissue-preferred promoters include, but are not limited to, leaf -preferred promoters, root-preferred promoters, seed- preferred promoters, and stem-preferred promoters. Tissue-preferred promoters include Yamamoto et al. (1997) Plant J. 12(2):255-265; Kawamata et al. (1997) Plant Cell Physiol. 38(7):792-803; Hansen et al. (1997) Mol. Gen Genet. 254(3):337-343; Russell et al. (1997) Transgenic Res. 6(2): 157-168; Rinehart et al. (1996) Plant Physiol. 112(3): 1331-1341; Van Camp et al. (1996) Plant Physiol. 112(2):525-535; Canevascini et al. (1996) Plant Physiol. 112(2):513-524; Yamamoto et al. (1994) Plant Cell Physiol. 40 35(5):773-778; Lam (1994) Results Probl. Cell Differ. 20: 181-196; Orozco et al. (1993) Plant Mol Biol. 23(6): 1129-1138; Matsuoka e/[alpha]/. (1993) Proc Natl. Acad. Sci. USA 90(20):9586-9590; and Guevara-Garcia et al. (1993) Plant J. 4(3):495-505. Such promoters can be modified, if necessary, for weak expression. In one embodiment, the nucleic acids of interest are targeted to the chloroplast for expression. In this manner, where the nucleic acid of interest is not directly inserted into the chloroplast, the expression cassette will additionally contain a chloroplast-targeting sequence comprising a nucleotide sequence that encodes a chloroplast transit peptide to direct the gene product of interest to the chloroplasts. Such transit peptides are known in the art. With respect to chloroplast-targeting sequences, “operably linked” means that the nucleic acid sequence encoding a transit peptide (i.e., the chloroplast-targeting sequence) is linked to the mutated PPO nucleic acid of the invention such that the two sequences are contiguous and in the same reading frame. See, for example, Von Heijne et al. (1991) Plant Mol. Biol. Rep. 9: 104-126; Clark et al. (1989) J. Biol. Chem. 264:17544-17550; Della-Cioppa et al. (1987) Plant Physiol. 84:965-968; Romer et al. (1993) Biochem. Biophys. Res. Commun. 196:1414-1421; and Shah et al. (1986) Science 233:478-481. While the mutated PPO proteins of the invention include a native chloroplast transit peptide, any chloroplast transit peptide known in the art can be fused to the amino acid sequence of a mature mutated PPO protein of the invention by operably linking a choloroplast-targeting sequence to the 5′-end of a nucleotide sequence encoding a mature mutated PPO protein of the invention. Chloroplast targeting sequences are known in the art and include the chloroplast small subunit of ribulose-1,5-bisphosphate carboxylase (Rubisco) (de Castro Silva Filho et al. (1996) Plant Mol. Biol. 30:769-780; Schnell et al. (1991) J. Biol. Chem. 266(5):3335-3342); 5 -(enolpyruvyl)shikimate-3 -phosphate synthase (EPSPS) (Archer et al. (1990) J. Bioenerg. Biomemb. 22(6):789-810); tryptophan synthase (Zhao et al. (1995) J. Biol. Chem. 270(11):6081-6087); plastocyanin(Lawrence et al. (1997) J. Biol. Chem. 272(33):20357-20363); chorismate synthase (Schmidt et al. (1993) J. Biol. Chem. 25 268(36):27447-27457); and the light harvesting chlorophyll a/b binding protein (LHBP) (Lamppa et al. (1988) J. Biol. Chem. 263: 14996-14999). See also Von Heijne et al. (1991) Plant Mol. Biol. Rep. 9: 104- 126; Clark et al. (1989) J. Biol. Chem. 264:17544-17550; Della-Cioppa et al. (1987) Plant Physiol. 84:965-968; Romer et al. (1993) Biochem. Biophys. Res. Commun. 196: 1414-1421; and Shah et al. (1986) Science 30 233:478-481.


In a preferred embodiment, the transit peptide comprises the amino acid sequence of SEQ ID NO: 129, 130, 131, 132, 133, 134, 135, 136, 137, 138, 139, 140, 141, 142, 143, 144, 145, 146, 147, 148, 149, 150, 151, 152, 153, 154, 155, 156, 157, 158, 159, 160, 161, 35 162, 163, 164, 165, 166, 167, 168, 169, 170, 171, 172, 173, 174, 175, 176, 177, 178, 179, 180, 181, 182, 183, 184, 185, 186, 187, 188, 189, 190, 191, 192, 193, 194, 195, 196, 197, 198, 199, 200, 201, 202, 203, 204, 205, 206, 207, 208, 209, 210, 211, 212, 213, 214, 215, 216, 217, 218, 219, 220, 221, 222, 223, 224, 225, 226.


Preferred expression cassettes comprise a transit peptide from Amaranthus PPO-2 fused to PPO or PPO like polypeptides, such as chimeric expression cassettes having the SEQ ID NO: 240, 241, 242, 243, 244, 245, 246, 247, 248, 249, 250, 251, 252, 253, 254, 255, 256, 257, 258, 259, 260, 261, 262, or 264


Methods for transformation of chloroplasts are known in the art. See, for example, Svab et al. (1990) Proc. Natl. Acad. ScL USA 87:8526-8530; Svab and Maliga (1993) Proc. Natl. Acad. Sci. USA 90:913-917; Svab and Maliga (1993) EMBO J. 12:601-606. The method relies on particle gun delivery of DNA containing a selectable marker and targeting of the DNA to the plastid genome through homologous recombination. Additionally, plastid transformation can be accomplished by transactivation of a silent plastid-borne transgene by tissue-preferred expression of a nuclear-encoded and plastid-directed RNA polymerase. Such a system has been reported in McBride et al. (1994) Proc. Natl. Acad. Sci. USA 91:7301-7305. The nucleic acids of interest to be targeted to the chloroplast may be optimized for expression in the chloroplast to account for differences in codon usage between the plant nucleus and this organelle. In this manner, the nucleic acids of interest may be synthesized using chloroplast-preferred codons. See, for example, U.S. Patent No. 5,380,831 , herein incorporated by reference.


In a preferred embodiment, the mutated PPO nucleic acid comprises a polynucleotide sequence selected from the group consisting of: a) a polynucleotide encoding a polypeptide as shown in SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 20 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 25 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, or a variant or derivative thereof; b) a polynucleotide comprising at least 60 consecutive nucleotides of any of a); and c) a polynucleotide complementary to the polynucleotide of any of a) through b)


Preferably, the expression cassette of the present invention further comprises a transcription initiation regulatory region and a translation initiation regulatory region that are functional in the plant.


While the polynucleotides of the invention find use as selectable marker genes for plant transformation, the expression cassettes of the invention can include another selectable marker gene for the selection of transformed cells. Selectable marker genes, including those of the present invention, are utilized for the selection of transformed cells or tissues. Marker genes include, but are not limited to, genes encoding antibiotic resistance, such as those encoding neomycin phosphotransferase II (NEO) and hygromycin phosphotransferase (HPT), as well as genes conferring resistance to herbicidal compounds, such as glufosinate ammonium, bromoxynil, imidazolinones, and 2,4-dichlorophenoxyacetate (2,4-D). See generally, Yarranton (1992) Curr. Opin. Biotech. 3 :506-511 ; Christophers on et al (1992) Proc. Natl. Acad. ScL USA 89:6314-6318; Yao et al. (1992) Cell 71:63-72; Reznikoff (1992) Mol Microbiol 6:2419-2422; Barkley et al (1980) in The Operon, pp. 177-220; Hu et al (1987) Cell 48:555-566; Brown et al (1987) Cell 49:603-612; Figge et al (1988) Cell 52:713-722; Deuschle et al (1989) Proc. Natl Acad. AcL USA 86:5400-5404; Fuerst et al (1989) Proc. Natl Acad. ScL USA 86:2549-2553; Deuschle et al (1990) Science 248:480-483; Gossen (1993) Ph.D. Thesis, University of Heidelberg; Reines et al (1993) Proc. Natl Acad. ScL USA 90: 1917-1921; Labow et al (1990) Mol Cell Biol 10:3343-3356; Zambretti et al (1992) Proc. Natl Acad. ScL USA 89:3952-3956; Bairn et al (1991) Proc. Natl Acad. ScL USA 88:5072-5076; Wyborski et al (1991) Nucleic Acids Res. 19:4647-4653; Hillenand-Wissman (1989) Topics Mol Struc. Biol 10: 143- 162; Degenkolb et al (1991) Antimicrob. Agents Chemother. 35: 1591-1595; Kleinschnidt et al (1988) Biochemistry 27: 1094-1104; Bonin (1993) Ph.D. Thesis, University of Heidelberg; Gossen et al (1992) Proc. Natl Acad. ScL USA 89:5547-5551; Oliva et al (1992) Antimicrob. Agents Chemother. 36:913-919; Hlavka et al (1985) Handbook of Experimental Pharmacology, Vol. 78 (Springer-Verlag, Berlin); Gill et al (1988) Nature 334:721-724. Such disclosures are herein incorporated by reference. The above list of selectable marker genes is not meant to be limiting. Any selectable marker gene can be used in the present invention.


The invention further provides an isolated recombinant expression vector comprising the expression cassette containing a mutated PPO nucleic acid as described above, wherein expression of the vector in a host cell results in increased tolerance to a uracilpyridine herbicide as compared to a wild type variety of the host cell. As used herein, the term “vector” refers to a nucleic acid molecule capable of transporting another nucleic acid to which it has been linked. One type of vector is a “plasmid,” which refers to a circular double stranded DNA loop into which additional DNA segments can be ligated. Another type of vector is a viral vector, wherein additional DNA segments can be ligated into the viral genome. Certain vectors are capable of autonomous replication in a host cell into which they are introduced (e.g., bacterial vectors having a bacterial origin of replication and episomal mammalian vectors). Other vectors (e.g., non-episomal mammalian vectors) are integrated into the genome of a host cell upon introduction into the host cell, and thereby are replicated along with the host genome. Moreover, certain vectors are capable of directing the expression of genes to which they are operatively linked. Such vectors are referred to herein as “expression vectors.” In general, expression vectors of utility in recombinant DNA techniques are often in the form of plasmids. In the present specification, “plasmid” and “vector” can be used interchangeably as the plasmid is the most commonly used form of vector. However, the invention is intended to include such other forms of expression vectors, such as viral vectors (e.g., replication defective retroviruses, adenoviruses, and adeno-associated viruses), which serve equivalent functions.


The recombinant expression vectors of the invention comprise a nucleic acid of the invention in a form suitable for expression of the nucleic acid in a host cell, which means that the recombinant expression vectors include one or more regulatory sequences, selected on the basis of the host cells to be used for expression, which is operably linked to the nucleic acid sequence to be expressed. Regulatory sequences include those that direct constitutive expression of a nucleotide sequence in many types of host cells and those that direct expression of the nucleotide sequence only in certain host cells or under certain conditions. It will be appreciated by those skilled in the art that the design of the expression vector can depend on such factors as the choice of the host cell to be transformed, the level of expression of polypeptide desired, etc. The expression vectors of the invention can be introduced into host cells to thereby produce polypeptides or peptides, including fusion polypeptides or peptides, encoded by nucleic acids as described herein (e.g., mutated PPO polypeptides, fusion polypeptides, etc.).


In a preferred embodiment of the present invention, the mutated PPO polypeptides are expressed in plants and plants cells such as unicellular plant cells (such as algae) (See Falciatore et al., 1999, Marine Biotechnology 1(3):239-251 and references therein) and plant cells from higher plants (e.g., the spermatophytes, such as crop plants). A mutated PPO polynucleotide may be “introduced” into a plant cell by any means, including transfection, transformation or transduction, electroporation, particle bombardment, agroinfection, biolistics, and the like.


Suitable methods for transforming or transfecting host cells including plant cells can be found in Sambrook et al. (Molecular Cloning: A Laboratory Manual. 2nd, ed., Cold Spring Harbor Laboratory, Cold Spring Harbor Laboratory Press, Cold Spring Harbor, NY, 1989) and other laboratory manuals such as Methods in Molecular Biology, 1995, Vol. 44, Agrobacterium protocols, ed: Gartland and Davey, Humana Press, Totowa, New Jersey. As increased tolerance to uracilpyridine herbicides is a general trait wished to be inherited into a wide variety of plants like maize, wheat, rye, oat, triticale, rice, barley, soybean, peanut, cotton, rapeseed and canola, manihot, pepper, sunflower and tagetes, solanaceous plants like potato, tobacco, eggplant, and tomato, Vicia species, pea, alfalfa, bushy plants (coffee, cacao, tea), Salix species, trees (oil palm, coconut), perennial grasses, and forage crops, these crop plants are also preferred target plants for a genetic engineering as one further embodiment of the present invention. In a preferred embodiment, the plant is a crop plant. Forage crops include, but are not limited to, Wheatgrass, Canarygrass, Bromegrass, Wildrye Grass, Bluegrass, Orchardgrass, Alfalfa, Salfoin, Birdsfoot Trefoil, Alsike Clover, Red Clover, and Sweet Clover.


In one embodiment of the present invention, transfection of a mutated PPO polynucleotide into a plant is achieved by Agrobacterium mediated gene transfer. One transformation method known to those of skill in the art is the dipping of a flowering plant into an Agrobacteria solution, wherein the Agrobacteria contains the mutated PPO nucleic acid, followed by breeding of the transformed gametes. Agrobacterium mediated plant transformation can be performed using for example the GV3101(pMP90) (Koncz and Schell, 1986, Mol. Gen. Genet. 204:383-396) or LBA4404 (Clontech) Agrobacterium tumefaciens strain. Transformation can be performed by standard transformation and regeneration techniques (Deblaere et al., 1994, Nucl. Acids. Res. 13:4777-4788; Gelvin, Stanton B. and Schilperoort, Robert A, Plant Molecular Biology Manual, 2nd Ed. -Dordrecht: Kluwer Academic Publ., 1995.-in Sect., Ringbuc Zentrale Signatur: BT11-P ISBN 0-7923-2731-4; Glick, Bernard R. and Thompson, John E., Methods in Plant Molecular Biology and Biotechnology, Boca Raton : CRc Press, 1993 360 S., ISBN 0-8493-5164-2). For example, rapeseed can be transformed via cotyledon or hypocotyl transformation (Moloney et al., 1989, Plant Cell Report 8:238-242; De Block et al., 1989, 10 Plant Physiol. 91:694-701). Use of antibiotics for Agrobacterium and plant selection depends on the binary vector and the Agrobacterium strain used for transformation. Rapeseed selection is normally performed using kanamycin as selectable plant marker. Agrobacterium mediated gene transfer to flax can be performed using, for example, a technique described by Mlynarova et al., 1994, Plant Cell Report 13:282-285. Additionally, transformation of soybean can be performed using for example a technique described in European Patent No. 0424 047, U.S. Pat. No. 5,322,783, European Patent No. 0397 687, U.S. Pat. No. 5,376,543, or U.S. Pat. No. 5,169,770. Transformation of maize can be achieved by particle bombardment, polyethylene glycol mediated DNA uptake, or via the silicon carbide fiber technique. (See, for example, Freeling and Walbot “The maize handbook” Springer Verlag: New York (1993) ISBN 3-540-97826-7). A specific example of maize transformation is found in U.S. Pat. No. 5,990,387, and a specific example of wheat transformation can be found in PCT Application No. WO 93/07256.


According to the present invention, the introduced mutated PPO polynucleotide may be maintained in the plant cell stably if it is incorporated into a non-chromosomal autonomous replicon or integrated into the plant chromosomes. Alternatively, the introduced mutated PPO polynucleotide may be present on an extra-chromosomal non-replicating vector and be transiently expressed or transiently active. In one embodiment, a homologous recombinant microorganism can be created wherein the mutated PPO polynucleotide is integrated into a chromosome, a vector is prepared which contains at least a portion of an PPO gene into which a deletion, addition, or substitution has been introduced to thereby alter, e.g., functionally disrupt, the endogenous PPO gene and to create a mutated PPO gene. To create a point mutation via homologous recombination, DNA-RNA hybrids can be used in a technique known as chimeraplasty (Cole-Strauss et al., 1999, Nucleic Acids Research 27(5):1323-1330 and Kmiec, 1999, Gene therapy American Scientist 87(3):240-247). Other homologous recombination procedures in Triticum species are also well known in the art and are contemplated for use herein.


In the homologous recombination vector, the mutated PPO gene can be flanked at its 5′ and 3′ ends by an additional nucleic acid molecule of the PPO gene to allow for homologous recombination to occur between the exogenous mutated PPO gene carried by the vector and an endogenous PPO gene, in a microorganism or plant. The additional flanking PPO nucleic acid molecule is of sufficient length for successful homologous recombination with the endogenous gene. Typically, several hundreds of base pairs up to kilobases of flanking DNA (both at the 5′ and 3′ ends) are included in the vector (see e.g., Thomas, K. R., and Capecchi, M. R., 1987, Cell 51:503 for a description of homologous recombination vectors or Strepp et al., 1998, PNAS, 95(8):4368-4373 for cDNA based recombination in Physcomitrella patens). However, since the mutated PPO gene normally differs from the PPO gene at very few amino acids, a flanking sequence is not always necessary. The homologous recombination vector is introduced into a microorganism or plant cell (e.g., via polyethylene glycol mediated DNA), and cells in which the introduced mutated PPO gene has homologously recombined with the endogenous PPO gene are selected using art-known techniques.


In another embodiment, recombinant microorganisms can be produced that contain selected systems that allow for regulated expression of the introduced gene. For example, inclusion of a mutated PPO gene on a vector placing it under control of the lac operon permits expression of the mutated PPO gene only in the presence of IPTG. Such regulatory systems are well known in the art.


Another aspect of the invention pertains to host cells into which a recombinant expression vector of the invention has been introduced. The terms “host cell” and “recombinant host cell” are used interchangeably herein. It is understood that such terms refer not only to the particular subject cell but they also apply to the progeny or potential progeny of such a cell. Because certain modifications may occur in succeeding generations due to either mutation or environmental influences, such progeny may not, in fact, be identical to the parent cell, but are still included within the scope of the term as used herein. A host cell can be any prokaryotic or eukaryotic cell. For example, a mutated PPO polynucleotide can be expressed in bacterial cells such as C. glutamicum, insect cells, fungal cells, or mammalian cells (such as Chinese hamster ovary cells (CHO) or COS cells), algae, ciliates, plant cells, fungi or other microorganisms like C. glutamicum. Other suitable host cells are known to those skilled in the art.


A host cell of the invention, such as a prokaryotic or eukaryotic host cell in culture, can be used to produce (i.e., express) a mutated PPO polynucleotide. Accordingly, the invention further provides methods for producing mutated PPO polypeptides using the host cells of the invention. In one embodiment, the method comprises culturing the host cell of invention (into which a recombinant expression vector encoding a mutated PPO polypeptide has been introduced, or into which genome has been introduced a gene encoding a wild-type or mutated PPO polypeptide) in a suitable medium until mutated PPO polypeptide is produced. In another embodiment, the method further comprises isolating mutated PPO polypeptides from the medium or the host cell. Another aspect of the invention pertains to isolated mutated PPO polypeptides, and biologically active portions thereof. An “isolated” or “purified” polypeptide or biologically active portion thereof is free of some of the cellular material when produced by recombinant DNA techniques, or chemical precursors or other chemicals when chemically synthesized. The language “substantially free of cellular material” includes preparations of mutated PPO polypeptide in which the polypeptide is separated from some of the cellular components of the cells in which it is naturally or recombinantly produced. In one embodiment, the language “substantially free of cellular material” includes preparations of a mutated PPO polypeptide having less than about 30% (by dry weight) of non-mutated PPO material (also referred to herein as a “contaminating polypeptide”), more preferably less than about 20% of non-mutated PPO material, still more preferably less than about 10% of non-mutated PPO material, and most preferably less than about 5% non-mutated PPO material.


When the mutated PPO polypeptide, or biologically active portion thereof, is recombinantly produced, it is also preferably substantially free of culture medium, i.e., culture medium represents less than about 20%, more preferably less than about 10%, and most preferably less than about 5% of the volume of the polypeptide preparation. The language “substantially free of chemical precursors or other chemicals” includes preparations of mutated PPO polypeptide in which the polypeptide is separated from chemical precursors or other chemicals that are involved in the synthesis of the polypeptide. In one embodiment, the language “substantially free of chemical precursors or other chemicals” includes preparations of a mutated PPO polypeptide having less than about 30% (by dry weight) of chemical precursors or non-mutated PPO chemicals, more preferably less than about 20% chemical precursors or non-mutated PPO chemicals, still more preferably less than about 10% chemical precursors or non-mutated PPO chemicals, and most preferably less than about 5% chemical precursors or non-mutated PPO chemicals. In preferred embodiments, isolated polypeptides, or biologically active portions thereof, lack contaminating polypeptides from the same organism from which the mutated PPO polypeptide is derived. Typically, such polypeptides are produced by recombinant expression of, for example, a mutated PPO polypeptide in plants other than, or in microorganisms such as C. glutamicum, ciliates, algae, or fungi.


In other aspects, a method for treating a plant of the present invention is provided.


In some embodiments, the method comprises contacting the plant with an agronomically acceptable composition.


In another aspect, the present invention provides a method for preparing a descendent seed. The method comprises planting a seed of or capable of producing a plant of the present invention. In one embodiment, the method further comprises growing a descendent plant from the seed; and harvesting a descendant seed from the descendent plant. In other embodiments, the method further comprises applying a uracilpyridine herbicides herbicidal composition to the descendent plant.


In another embodiment, the invention refers to harvestable parts of the transgenic plant according to the present invention. Preferably, the harvestable parts comprise the PPO nucleic acid or PPO protein of the present invention. The harvestable parts may be seeds, roots, leaves and/or flowers comprising the PPO nucleic acid or PPO protein or parts thereof. Preferred parts of soy plants are soy beans comprising the PPO nucleic acid or PRO protein.


In another embodiment, the invention refers to products derived from a plant according to the present invention, parts thereof or harvestable parts thereof. A preferred plant product is fodder, seed meal, oil, or seed-treatment-coated seeds. Preferably, the meal andlor oil comprises the mutated PPO nucleic acids or PRO proteins of the present invention.


In another embodiment, the invention refers to a method for the production of a product, which method comprises

    • a) growing the plants of the invention or obtainable by the methods of invention and
    • b) producing said product from or by the plants of the invention and/or parts, e.g.


seeds, of these plants.


In a further embodiment the method comprises the steps

    • a) growing the plants of the invention,
    • b) removing the harvestable parts as defined above from the plants and
    • c) producing said product from or by the harvestable parts of the invention.


The product may be produced at the site where the plant has been grown, the plants and/or parts thereof may be removed from the site where the plants have been grown to produce the product. Typically, the plant is grown, the desired harvestable parts are removed from the plant, if feasible in repeated cycles, and the product made from the harvestable parts of the plant. The step of growing the plant may be performed only once each time the methods of the invention is performed, while allowing repeated times the steps of product production e.g. by repeated removal of harvestable parts of the plants of the invention and if necessary further processing of these parts to arrive at the product. It is also possible that the step of growing the plants of the invention is repeated and plants or harvestable parts are stored until the production of the product is then performed once for the accumulated plants or plant parts. Also, the steps of growing the plants and producing the product may be performed with an overlap in time, even simultaneously to a large extend or sequentially. Generally the plants are grown for some time before the product is produced.


In one embodiment the products produced by said methods of the invention are plant products such as, but not limited to, a foodstuff, feedstuff, a food supplement, feed supplement, fiber, cosmetic and/or pharmaceutical. Foodstuffs are regarded as compositions used for nutrition and/or for supplementing nutrition. Animai feedstuffs and animal feed supplements, in particular, are regarded as foodstuffs.


In another embodiment the inventive methods for the production are used to make agricultural products such as, but not limited to, plant extracts, proteins, amino acids, carbohydrates, fats, oils, polymers, vitamins, and the like.


It is possible that a plant product consists of one or more agricultural products to a large extent.


As described above, the present invention teaches compositions and methods for increasing the PPO-inhibiting tolerance of a crop plant or seed as compared to a wild-type variety of the plant or seed. In a preferred embodiment, the PPO-inhibiting tolerance of a crop plant or seed is increased such that the plant or seed can withstand a uracilpyridine herbicide application of preferably approximately 1-1000 g ai ha−1, more preferably 1-200 g ai ha−1, even more preferably 5-150 g ai ha−1, and most preferably 10-100 g ai ha−1. As used herein, to “withstand” a uracilpyridine herbicide application means that the plant is either not killed or only moderately injured by such application. It will be understood by the person skilled in the art that the application rates may vary, depending on the environmental conditions such as temperature or humidity, and depending on the chosen kind of herbicide (active ingredient ai).


Furthermore, the present invention provides methods that involve the use of at least one uracilpyridine herbicide, optionally in combination with one or more herbicidal compounds B, and, optionally, a safener C, as described in detail supra.


In these methods, the uracilpyridine herbicide can be applied by any method known in the art including, but not limited to, seed treatment, soil treatment, and foliar treatment. Prior to application, the uracilpyridine herbicide can be converted into the customary formulations, for example solutions, emulsions, suspensions, dusts, powders, pastes and granules. The use form depends on the particular intended purpose; in each case, it should ensure a fine and even distribution of the compound according to the invention.


By providing plants having increased tolerance to uracilpyridine herbicide, a wide variety of formulations can be employed for protecting plants from weeds, so as to enhance plant growth and reduce competition for nutrients. A uracilpyridine herbicide can be used by itself for pre-emergence, post-emergence, pre-planting, and at-planting control of weeds in areas surrounding the crop plants described herein, or a uracilpyridine herbicide formulation can be used that contains other additives. The uracilpyridine herbicide can also be used as a seed treatment. Additives found in a uracilpyridine herbicide formulation include other herbicides, detergents, adjuvants, spreading agents, sticking agents, stabilizing agents, or the like. The uracilpyridine herbicide formulation can be a wet or dry preparation and can include, but is not limited to, flowable powders, emulsifiable concentrates, and liquid concentrates. The uracilpyridine herbicide and herbicide formulations can be applied in accordance with conventional methods, for example, by spraying, irrigation, dusting, or the like.


Suitable formulations are described in detail in PCT/EP2009/063387 and PCT/EP2009/063386, which are incorporated herein by reference.


It should also be understood that the foregoing relates to preferred embodiments of the present invention and that numerous changes may be made therein without departing from the scope of the invention. The invention is further illustrated by the following examples, which are not to be construed in any way as imposing limitations upon the scope thereof. On the contrary, it is to be clearly understood that resort may be had to various other embodiments, modifications, and equivalents thereof, which, after reading the description herein, may suggest themselves to those skilled in the art without departing from the spirit of the present invention and/or the scope of the appended claims.


EXAMPLES

Legend to the Uracilpyridines according to the present invention which were used in the following examples:















Uracilpyridine 1
ethyl 2-[[3-[2-chloro-4-fluoro-5-[3-methyl-2,6-dioxo-4-(trifluoromethyl)pyrimiclin-



1-yl]phenoxy]-2-pyridyl]oxy] acetate


Uracilpyridine 2
ethyl 2-[[3-[[3-chloro-5-fluoro-6-[3-methyl-2,6-dioxo-4-(trifluoromethyl)pyrimidin-



1-yl]-2-pyridyl]oxy]-2-pyridyl]oxy]acetate


Uracilpyridine 3
2-[[3-[[3-chloro-5-fluoro-6-[3-methyl-2,6-dioxo-4-(trifluoromethyl)pyrimidin-1-yl]-



2-pyridyl]oxy]-2-pyridyl]oxy]acetic acid


Uracilpyridine 4
ethyl 2-[2-[[3-chloro-5-fluoro-6-[3-methyl-2,6-dioxo-4-(trifluoromethyl)pyrimidin-



1-yl]-2-pyridyl]oxy]phenoxy]acetate


Uracilpyridine 5
2-[2-[[3-chloro-5-fluoro-6-[3-methyl-2,6-dioxo-4-(trifluoromethyl)pyrimidin-1-yl]-



2-pyridyl]oxy]phenoxy]acetic acid


Uracilpyridine 6
ethyl 2-[2-[[3-bromo-6-[3-methyl-2,6-dioxo-4-(trifluoromethyl)pyrimidin-1-yl]-2-



pyridyl]oxy]phenoxy]acetate


Uracilpyridine 7
ethyl 2-[2-[[3-chloro-5-fluoro-6-[3-methyl-2,6-dioxo-4-(trifluoromethyl)pyrimidin-



1-yl]-2-pyridyl]oxy]-4-fluoro-phenoxy]acetate


Uracilpyridine 8
ethyl 2-[2-[[3,5-difluoro-6-[3-methyl-2,6-dioxo-4-(trifluoromethyl)pyrimidin-1-yl]-



2-pyridyl]oxy]phenoxy]acetate


Uracilpyridine 9
2-[2-[[3,5-difluoro-6-[3-methyl-2,6-dioxo-4-(trifluoromethyl)pyrimidin-1-yl]-2-



pyridyl]oxy]phenoxy]acetic acid


Uracilpyridine 10
2-[2-[[3-chloro-5-fluoro-6-[3-methyl-2,6-dioxo-4-(trifluoromethyl)pyrimidin-1-yl]-



2-pyridyl]oxy]phenoxy]-N-methylsulfonyl-acetamide


Uracilpyridine 11
ethyl 2-[[3-[[3-chloro-6-[3,5-dimethyl-2,6-dioxo-4-(trifluoromethyl)pyrimidin-1-yl]-



5-fluoro-2-pyridyl]oxy]-2-pyridyl]oxy]acetate


Uracilpyridine 12
ethyl 2-[2-[[3-chloro-6-[3,5-dimethyl-2,6-dioxo-4-(trifluoromethyl)pyrimidin-1-yl]-



5-fluoro-2-pyridyl]oxy]phenoxy]acetate


Uracilpyridine 13
allyl 2-[[3-[[3-chloro-5-fluoro-6-[3-methyl-2,6-dioxo-4-(trifluoromethyl)pyrimidin-



1-yl]-2-pyridyl]oxy]-2-pyridyl]oxy]acetate


Uracilpyridine 14
prop-2-ynyl 2-[[3-[[3-chloro-5-fluoro-6-[3-methyl-2,6-dioxo-4-



(trifluoromethyl)pyrimidin-1-yl]-2-pyridyl]oxy]-2-pyridyl]oxy]acetate


Uracilpyridine 15
cyclopropylmethyl 2-[[3-[[3-chloro-5-fluoro-6-[3-methyl-2,6-dioxo-4-



(trifluoromethyl)pyrimidin-1-yl]-2-pyridyl]oxy]-2-pyridyl]oxy]acetate


Uracilpyridine 16
2,2-difluoroethyl 2-[[3-[[3-chloro-5-fluoro-6-[3-methyl-2,6-dioxo-4-



(trifluoromethyl)pyrimidin-1-yl]-2-pyridyl]oxy]-2-pyridyl]oxy]acetate


Uracilpyridine 17
isobutyl 2-[[3-[[3-chloro-5-fluoro-6-[3-methyl-2,6-dioxo-4-



(trifluoromethyl)pyrimidin-1-yl]-2-pyridyl]oxy]-2-pyridyl]oxy]acetate


Uracilpyridine 18
(2-ethoxy-2-oxo-ethyl) 2-[[3-[[3-chloro-5-fluoro-6-[3-methyl-2,6-dioxo-4-



(trifluoromethyl)pyrimidin-1-yl]-2-pyridyl]oxy]-2-pyridyl]oxy]acetate


Uracilpyridine 19
2-methoxyethyl 2-[[3-[[3-chloro-5-fluoro-6-[3-methyl-2,6-dioxo-4-



(trifluoromethyl)pyrimidin-1-yl]-2-pyridyl]oxy]-2-pyridyl]oxy]acetate


Uracilpyridine 20
2-[[3-[[3-chloro-5-fluoro-6-[3-methyl-2,6-dioxo-4-(trifluoromethyl)pyrimidin-1-yl]-2-



pyridyl]oxy]-2-pyridyl]oxy]-N-methylsulfonyl-acetamide


Uracilpyridine 21
methyl 2-[2-[[3-chloro-5-fluoro-6-[3-methyl-2,6-dioxo-4-(trifluoromethyl)pyrimidin-1-yl]-



2-pyridyl]oxy]phenoxy]acetate


Uracilpyridine 22
ethyl 2-[2-[[3-bromo-5-fluoro-6-[3-methyl-2,6-dioxo-4-(trifluoromethyl)pyrimidin-1-yl]-2-



pyridyl] oxy]phenoxy]acetate









Example 1: Site-Directed Mutagenesis PPO

All nucleic acid coding sequence and all single and double mutants encoding a herbicide tolerant PPO polypeptides are synthesized and cloned by Geneart (Geneart AG, Regensburg, Germany). Rational design mutants are synthesized by Geneart. Random PPO gene libraries are synthesized by Geneart. Plasmids are isolated from E. coli TOP10 by performing a plasmid minpreparation and confirmed by DNA sequencing.


Example 2: Expression and Purification of Recombinant Wildtype and Mutant PPO

(Taken from: Franck E. Dayan, Pankaj R. Daga, Stephen O. Duke, Ryan M. Lee, Patrick J. Tranel, Robert J. Doerksen. Biochemical and structural consequences of a glycine deletion in the α-8 helix of protoporphyrinogen oxidase. Biochimica et Biophysica Acta 1804 (2010), 1548-56) Clones in pRSET vector are transformed into BL21(DE3)-pLysS strain of E. coli. Cells are grown in 250 mL of LB with 100 μgmL-1 of carbenicillin, shaking overnight at 37° C. Cultures are diluted in 1 L of LB with antibiotic and grown at 37 ° C. shaking for 2 h, induced with 1 mM IPTG and grown at 25° C. shaking for 5 more hours. The cells are harvested by centrifugation at 1600×g, washed with 0.09% NaCl, and stored at −80 ° C. Cells are lysed using a French press at 140 MPa in 50 mM sodium phosphate pH 7.5, 1 M NaCl, 5 mM imidazole, 5% glycerol, and 1 μg mL-1 leupeptin. Following lysis, 0.5 U of benzonase (Novagen, EMD Chemicals, Inc., Gibbstown, N.J.) and PMSF (final concentration of 1 mM) are added. Cell debris is removed by centrifugation at 3000×g. His-tagged PPO proteins are purified on a nickel activated Hitrap Chelating HP column (GE Healthcare Bio-Sciences Corp., Piscataway, N.J.) equilibrated with mM sodium phosphate pH 8.0, 50 mM NaCl, 5 mM imidazole, 5 mM MgCl2, 0.1 mM EDTA, and 17% glycerol. PPO is eluted with 250 mM imidazole. The active protein is desalted on a PD-column (GE Healthcare Bio-Sciences Corp., Piscataway, N.J.) equilibrated with a 20 mM sodium phosphate buffer, pH 7.5, 5 mM MgCl2, 1 mM EDTA and 17% glycerol. Each litre of culture provided approximately 10 mg of pure PPO, which is stored at −20° C. until being used in assays.


Example 3: PPO Enzyme Assay (Non-Recombinant)

PPO protein (EC 1.3.3.4) is extracted from coleoptiles or shoots (150 g fresh weight) of dark-grown corn, black nightshade, morning glory, and velvetleaf seedlings as described previously (Grossmann et al. 2010). Before harvesting, the seedlings are allowed to green for 2 hours in the light in order to achieve the highest specific enzyme activities in the thylakoid fractions at low chlorophyll concentrations. At high chlorophyll concentrations significant quenching of fluorescence occurs, which limits the amount of green thylakoids that can be used in the test. Plant materials are homogenized in the cold with a Braun blender using a fresh-weight-to-volume ratio of 1:4. Homogenization buffer consisted of tris(hydroxymethyl)aminomethane (Tris)-HCl (50 mM; pH 7.3), sucrose (0.5 M), magnesium chloride (1 mM), ethylenediaminetetraacetic acid (EDTA) (1 mM) and bovine serum albumin (2 g L−1). After filtration through four layers of Miracloth, crude plastid preparations are obtained after centrifugation at 10 000×g for 5 min and resuspension in homogenization buffer before centrifugation at 150×g for 2 min to remove crude cell debris. The supernatant is centrifuged at 4000×g for min and the pellet fraction is resuspended in 1 ml of a buffer containing Tris-HCl (50 mM; pH 7.3), EDTA (2 mM), leupeptin (2 μM), pepstatin (2 μM) and glycerol (200 ml L −1) and stored at −80° C. until use. Protein is determined in the enzyme extract with bovine serum albumin as a standard. PPO activity is assayed fluorometrically by monitoring the rate of Proto formation from chemically reduced protoporphyrinogen IX under initial velocity conditions. The assay mixture consisted of Tris-HCl (100 mM; pH 7.3), EDTA (1 mM), dithiothreitol (5 mM), Tween 80 (0.085%), protoporphyrinogen IX (2 μM), and 40 μg extracted protein in a total volume of 200 μl. The reaction is initiated by addition of substrate protoporphyrinogen IX at 22° C. The uracilpyridines disclosed SUPRA, and photosynthesis inhibitor diuron as negative control are prepared in dimethyl sulfoxide (DMSO) solution (0.1 mM concentration of DMSO in the assay) and added to the assay mixture in concentrations of 0.005 pM to 5 μM before incubation. Fluorescence is monitored directly from the assay mixture using a POLARstar Optima/Galaxy (BMG) with excitation at 405 nm and emission monitored at 630 nm. Non-enzymatic activity in the presence of heat-inactivated extract is negligible. Inhibition of enzyme activity induced by the herbicide is expressed as percentage inhibition relative to untreated controls. Molar concentrations of compound required for 50% enzyme inhibition (IC50 values) are calculated by fitting the values to the dose-response equation using non-linear regression analysis.


Example 4: PPO Enzyme Assay (Recombinant)

Proto is purchased from Sigma-Aldrich (Milwaukee, Wis.). Protogen is prepared according to Jacobs and Jacobs (N. J. Jacobs, J. M. Jacobs, Assay for enzymatic protoporphyrinogen oxidation, a late step in heme synthesis, Enzyme 28 (1982) 206-219) . Assays are conducted in 100 mM sodium phosphate pH 7.4 with 0.1 mM EDTA, 0.1% Tween 20, 5 μM FAD, and 500 mM imidazole. Dose—response curves with the uracilpyridines disclosed SUPRA, and photosynthesis inhibitor diuron as negative control, and MC-15608 are obtained in the presence of 150 μM Protogen. The excitation and emission bandwidths are set at 1.5 and 30 nm, respectively. AH assays are made in duplicates or triplicates and measured using a POLARstar Optima/Galaxy (BMG) with excitation at 405 nm and emission monitored at 630 nm. Molar concentrations of compound required for 50% enzyme inhibition (IC50 values) are calculated by fitting the values to the dose-response equation using non-linear regression analysis. The results are shown in Table x.












TABLE X







Wild Type




Variant PPO Enzyme
PPO




and IC50 (M)
Enzyme
Tolerance



Based on SEQ ID NO: 1
IC50
Factor


Compound
(Amaranthus PPO2)
(M)
(R/S)



















Uracilpyridine
R128A, F420V
2.80E−07
1.77E−10
1579


1






Uracilpyridine
R128A, F420V
1.62E−07
1.77E−10
915


1






Uracilpyridine
R128A, F420M
6.16E−08
1.77E−10
347


1






Uracilpyridine
L397Q, F420V
2.26E−06
1.77E−10
12739


1






Uracilpyridine
L397Q, F420M
4.29E−07
1.77E−10
2418


1






Uracilpyridine
L397Q
2.38E−09
1.77E−10
13


1






Uracilpyridine
F420V
6.64E−08
1.77E−10
374


1






Uracilpyridine
F420M
3.81E−08
1.77E−10
215


1






Uracilpyridine
F420M
4.69E−08
1.77E−10
265


1






Uracilpyridine
R128A, F420V
2.97E−07
1.73E−10
1718


4






Uracilpyridine
R128A, F420M
6.94E−08
1.73E−10
401


4






Uracilpyridine
F420M
9.44E−09
1.73E−10
55


4






Uracilpyridine
R128A, F420V
1.49E−07
1.87E−10
796


2






Uracilpyridine
R128A, F420V
2.07E−07
1.87E−10
1105


2






Uracilpyridine
R128A, F420M
9.74E−08
1.87E−10
521


2






Uracilpyridine
L397Q, F420V
2.56E−06
1.87E−10
13678


2






Uracilpyridine
L397Q, F420M
9.05E−07
1.87E−10
4843


2






Uracilpyridine
L397Q
1.29E−09
1.87E−10
7


2






Uracilpyridine
F420V
1.06E−07
1.87E−10
567


2






Uracilpyridine
F420M
4.57E−08
1.87E−10
244


2






Uracilpyridine
F420M
7.76E−08
1.87E−10
415


2






Uracilpyridine
R128A, F420V
2.25E−06
4.96E−10
4531


8






Uracilpyridine
F420M
6.91E−08
4.96E−10
139


8






Uracilpyridine
R128A, F420M
1.67E−06
2.12E−10
7879


10






Uracilpyridine
L397E, F420M
6.51E−06
2.12E−10
30714


10






Uracilpyridine
R128A, F420M
1.14E−07
2.12E−10
536


12






Uracilpyridine
R128A, F420M
9.18E−08
2.18E−10
421


13






Uracilpyridine
R128A, F420M
1.58E−07
2.34E−10
675


14






Uracilpyridine
R128A, F420M
1.25E−07
2.48E−10
503


19






Uracilpyridine
R128A, F420M
4.29E−08
2.20E−10
195


15






Uracilpyridine
R128A, F420M
8.90E−08
1.75E−10
508


16






Uracilpyridine
R128A, F420M
4.61E−08
1.13E−10
406


17






Uracilpyridine
R128A, F420M
1.16E−07
1.54E−10
753


18













Example 5: Engineering PPO-derivative Herbicide Tolerant Plants having Wildtype or Mutated PPO Sequences

PPO-derivative herbicide tolerant soybean (Glyceine max), plants are produced by a method as described by Olhoft et al. (US patent 2009/0049567). For transformation of soybean or Arabidopsis thaliana, Wildtype or Mutated PPO sequences encoding herbicide tolerant PPO polypeptides are cloned with standard cloning techniques as described in Sambrook et al. (Molecular cloning (2001) Cold Spring Harbor Laboratory Press) in a binary vector containing resistance marker gene cassette (AHAS) and mutated PPO sequence (marked as GOI) in between ubiquitin promoter (PcUbi) and nopaline synthase terminator (NOS) sequence. For corn transformation, Wildtype or Mutated PPO sequences are cloned with standard cloning techniques as described in Sambrook et al. (Molecular cloning (2001) Cold Spring Harbor Laboratory Press) in a binary vector containing resistance marker gene cassette (AHAS) and mutated PPO sequence (marked as GOI) in between corn ubiquitin promoter (ZmUbi) and nopaline synthase terminator (NOS) sequence. Binary plasmids are introduced to Agrobacterium tumefaciens for plant transformation. Plasmid constructs are introduced into soybean's axillary meristem cells at the primary node of seedling explants via Agrobacterium-mediated transformation. After inoculation and co-cultivation with Agrobacteria, the explants are transferred to shoot introduction media without selection for one week. The explants are subsequently transferred to a shoot induction medium with 1-3 μM imazapyr (Arsenal) for 3 weeks to select for transformed cells. Explants with healthy callus/shoot pads at the primary node are then transferred to shoot elongation medium containing 1-3 μM imazapyr until a shoot elongated or the explant died. Transgenic plantlets are rooted, subjected to TaqMan analysis for the presence of the transgene, 5 transferred to soil and grown to maturity in greenhouse. Plant transformation vector constructs containing mutated PPO sequences are introduced into maize immature embryos via Agrobacterium-mediated transformation according to the procedure outlined in Peng et al.(WO2006/136596).


Transformed cells are selected in selection media supplemented with 0.5-1.5 μM imazethapyr for 3-4 weeks. Transgenic plantlets are regenerated on plant regeneration media and rooted afterwards. Transgenic plantlets are subjected to TaqMan analysis for the presence of the transgene before being transplanted to potting mixture and grown to maturity in greenhouse. Arabidopsis thaliana are transformed with wildtype or mutated PPO sequences by floral dip method as decribed by McElver and Singh (WO 2008/124495). Transgenic Arabidopsis plants are subjected to TaqMan analysis for analysis of the number of integration loci. Transformation of Oryza sativa (rice) are done by protoplast transformation as decribed by Peng et al. (U.S. Pat. No. 6,653,529) T0 or T1 transgenic plants of soybean, corn, and rice containing mutated PPO sequences are tested for improved tolerance to PPO-derived herbicides in greenhouse studies and mini-plot studies with the uracilpyridines disclosed SUPRA, and photosynthesis inhibitor diuron as negative control.


Example 6: Tissue Culture Conditions

An in vitro tissue culture mutagenesis assay has been developed to isolate and characterize plant tissue (e.g., maize, rice tissue) that is tolerant to protoporphyrinogen oxidase inhibiting herbicides, e.g. the uracilpyridines disclosed SUPRA, and photosynthesis inhibitor diuron as negative control). The assay utilizes the somaclonal variation that is found in in vitro tissue culture. Spontaneous mutations derived from somaclonal variation can be enhanced by treatment with a chemical mutagen (e.g. Ethyl methanesulfonate, N-ethyl-N-nitrosourea, N-Nitroso-N-methylurea) and subsequent selection in a stepwise manner, on increasing concentrations of herbicide.


The present invention provides tissue culture conditions for encouraging growth of friable, embryogenic maize or rice callus that is regenerable. Calli are initiated from rice cultivar Indica (Indica I). Seeds are surface sterilized in 70% ethanol for approximately I min followed by 20% commercial Clorox bleach for minutes. Seeds are rinsed with sterile water and plated on R001M media. The ingredient lists for the media tested are presented in Table y.















TABLE y





Ingredients
Supplier
R001M
R025M
R026M
R327M
R008S


























N6 Salts
Phytotech
4
g/L
4
g/L
4.3
g/L
4.3
g/L
3.25
g/L














N6 vitamins
Phytotech
1X
1X
1X
1X




















Maltose
VWR
30
g/L
30
g/L
30
g/L
30
g/L




Casamino Acid
BD
0.3
g/L
0.3
g/L
2
g/L


Proline
Sigma
2.9
g/L
0.5
g/L


2,4-D
ICN
2
mg/L


MES
Sigma
0.5
g/L
0.5
g/L
0.5
g/L
0.5
g/L
0.5
g/L


MS Salts
Phytotech


MS Vitamins
Phytotech


Sorbitol
Sigma




30
g/L


Sucrose
Sigma








20
g/L


Nicotinic Acid
Sigma








0.5
mg/L


Pyridoxine HCL
Sigma








0.5
mg/L


Thiamine HCL
Sigma








1
mg/L


Myo-inositol
Sigma








0.1
g/L









R001M callus induction media is selected after testing numerous variations. Cultures are kept in the dark at 30° C. Embryogenic callus is subcultured to fresh media after 10-14 days.


Example 7: Selection of Herbicide-Tolerant Calli

Once tissue culture conditions are determined, further establishment of selection conditions are established through the analysis of tissue survival in kill curves with saflufenacil, trifludimoxazin, sulfentrazone, and the uracilpyridines disclosed SUPRA, and photosynthesis inhibitor diuron as negative control. Careful consideration of accumulation of the herbicide in the tissue, as well as its persistence and stability in the cells and the culture media is performed. Through these experiments, a sub-lethal dose has been established for the initial selection of mutated material. After the establishment of the starting dose of uracilpyridines disclosed SUPRA, and photosynthesis inhibitor diuron as negative control in selection media, the tissues are selected in a step-wise fashion by increasing the concentration of the PPO inhibitor with each transfer until cells are recovered that grew vigorously in the presence of toxic doses. The resulting calli are further subcultured every 3-4 weeks to R001M with selective agent. Over 26,000 calli are subjected to selection for 4-5 subcultures until the selective pressure is above toxic levels as determined by kill curves and observations of continued culture. Alternatively, liquid cultures initiated from calli in MS711R with slow shaking and weekly subcultures. Once liquid cultures are established, selection agent is added directly to the flask at each subculture. Following 2-4 rounds of liquid selection, cultures are transferred to filters on solid R001M media for further growth.


Example 8: Regeneration of Plants

Tolerant tissue, e.g. rice tissue, is regenerated and characterized molecularly for PPO gene, e.g. Oryza sative PPO2 sequence mutations and/or biochemically for altered PPO activity in the presence of the selective agent. In addition, genes involved directly and/or indirectly in tetrapyrrole biosynthesis and/or metabolism pathways are also sequenced to characterize mutations. Finally, enzymes that change the fate (e.g. metabolism, translocation, transportation) are also sequence to characterized mutations. Following herbicide selection, calli are regenerated using a media regime of R025M for 10-14 days, R026M for ca. 2 weeks, R327M until well formed shoots are developed, and ROO8S until shoots are well rooted for transfer to the greenhouse. Regeneration is carried out in the light. No selection agent is included during regeneration. Once strong roots are established, MO regenerants are transplant to the greenhouse in square or round pots. Transplants are maintained under a clear plastic cup until they are adapted to greenhouse conditions. The greenhouse is set to a day/night cycle of 27° C/21° C. (80° F/70° F.) with 600 W high pressure sodium lights supplementing light to maintain a 14 hour day length. Plants are watered according to need, depending in the weather and fertilized daily.


Example 9: Sequence Analysis

Leaf tissue is collected from clonal plants separated for transplanting and analyzed as individuals. Genomic DNA is extracted using a Chloropure Nucleic acid extraction kit (Agencourt, U.S. Pat. Nos. 5,898,071; 5,705,628; 6,534,262) as directed by the manufacturer. Isolated DNA is PCR amplified using the appropriate forward and reverse primer.


PCR amplification is performed using LongAmp HotStart Taq DNA Polymerase Mix (New England Biolabs) using thermocycling program as follows: 94° C. for sec, followed by cycles (94° C., sec; 54° C., sec; 65° C., 300 sec), min at 65° C. PCR products are verified for concentration and fragment size via agarose gel electrophoresis. Dephosphorylated PCR products are analyzed by direct sequence using the PCR primers (Genewiz or GenScript). Chromatogram trace files (.scf) are analyzed for mutation relative to the wild-type gene using Sequencher (Gene Codes) or Vector NTI Advance 10™ (Invitrogen). Based on sequence information, mutations are identified in several individuals. Sequence analysis is performed on the representative chromatograms and corresponding alignment with default settings and edited to call secondary peaks.


Example 10: Demonstration of Herbicide-Tolerance

T0 or T1 transgenic plant of soybean, corn, Canola varieties and rice containing PPO1 and or PPO2 sequences are tested for improved tolerance to herbicides in greenhouse studies and mini-plot studies with the uracilpyridines disclosed SUPRA, and photosynthesis inhibitor diuron as negative control. For the pre-emergence treatment, the herbicides are applied directly after sowing by means of finely distributing nozzles. The containers are irrigated gently to promote germination and growth and subsequently covered with transparent plastic hoods until the plants have rooted. This cover causes uniform germination of the test plants, unless this has been impaired by the herbicides. For post emergence treatment, the test plants are first grown to a height of 3 to 15 cm, depending on the plant habit, and only then treated with the herbicides. For this purpose, the test plants are either sown directly, and grown in the same containers or they are first grown separately and transplanted into the test containers a few days prior to treatment.


For testing of T0 plants, cuttings can be used. In the case of soybean plants, an optimal shoot for cutting is about 7.5 to 10 cm tall, with at least two nodes present. Each cutting is taken from the original transformant (mother plant) and dipped into rooting hormone powder (indole-3-butyric acid, IBA). The cutting is then placed in oasis wedges inside a bio-dome. Wild type cuttings are also taken simultaneously to serve as controls. The cuttings are kept in the bio-dome for 5-7 days and then transplanted to pots and then acclimated in the growth chamber for two more days. Subsequently, the cuttings are transferred to the greenhouse, acclimated for approximately 4 days, and then subjected to spray tests as indicated. Depending on the species, the plants are kept at 10-25° C. or 20-35° C. The test period extends over 3 weeks. During this time, the plants are tended and their response to 5 the individual treatments is evaluated. Herbicide injury evaluations are taken at 2 and 3 weeks after treatment. Plant injury is rated on a scale of 0% to 100%, 0% being no injury and 100% being complete death.


Transgenic Arabidopsis thaliana plants are assayed for improved tolerance to the uracilpyridines disclosed SUPRA, in 48-well plates. Therefore, T2 seeds are surface sterilized by stirring for 5 min in ethanol +water (70+30 by volume), rinsing one time with ethanol+water (70+30 by volume) and two times with sterile, deionized water. The seeds are resuspended in 0.1% agar dissolved in water (w/v) Four to five seeds per well are plated on solid nutrient medium consisting of half-strength murashige skoog nutrient solution, pH 5.8 (Murashige and Skoog (1962) Physiologia Plantarum 15: 473-497). Compounds are dissolved in dimethylsulfoxid (DMSO) and added to the medium prior solidification (final DMSO concentration 0.1%). Multi well plates are incubated in a growth chamber at 22° C., 75% relative humidity and 110 μmol Phot*m−2*s−1 with 14:10 h light:dark photoperiod. Growth inhibition is evaluated seven to ten days after seeding in comparison to wild type plants. The results are shown in Table i)


















Tolerance


Compound
Gene Species Source
Construct Name
Factor*


















Uracilpyridine 1

Amaranthus
tuberculatus

AMATU_PPO2_WT
6


Uracilpyridine 1

Amaranthus
tuberculatus

AMATU_PPO2_F420M
110


Uracilpyridine 1

Amaranthus
tuberculatus

AMATU_PPO2_L397D
50


Uracilpyridine 1

Amaranthus
tuberculatus

AMATU_PPO2_L397D_F420V
41


Uracilpyridine 1

Amaranthus
tuberculatus

AMATU_PPO2_R128A_F420M
50


Uracilpyridine 1

Amaranthus
tuberculatus

AMATU_PPO2_R128A_F420V
75


Uracilpyridine 1

Arabidopsis
thaliana

ARBTH_PPO1_WT
50


Uracilpyridine 1

Arabidopsis
thaliana

ARBTH_PPO1_S305L_Y426M
250


Uracilpyridine 3

Escherichia
coli

AMATU_PPO2_TP_hemG
1600


Uracilpyridine 9

Escherichia
coli

AMATU_PPO2_TP_hemG
1600


Uracilpyridine 4

Escherichia
coli

AMATU_PPO2_TP_hemG
810000


Uracilpyridine 5

Escherichia
coli

AMATU_PPO2_TP_hemG
1400


Uracilpyridine 2

Escherichia
coli

AMATU_PPO2_TP_hemG
6400


Uracilpyridine 8

Escherichia
coli

AMATU_PPO2_TP_hemG
8202





Transgenic T2 Arabidopsis plants harboring PPO inhibitor tolerance trait in lab based germination assay.






Additionally, transgenic T2 Arabidopsis plants are tested for improved tolerance to herbicides in greenhouse studies with the uracilpyridines as disclosed SUPRA, and photosynthesis inhibitor diuron as negative control. Results are shown in table ii), table iii), and FIG. 1.


Table ii): Transgenic T2 Arabidopsis plants, sprayed post in the greenhouse with the indicated amount of PPO inhibitor+1% (v/v) MSO. Evaluation performed 14 Days After Treatment (DAT) and is shown as injury (%) relative to non-transgenic treated plants.


















TABLE ii












ALOMY











PPO2







TP




ARBTH


AMATU
AMATU
AMATU
AMATU
AMATU




WT MC24 -
ARBTH
AMATU
PPO2
PPO2
PPO2
PPO2
PPO2




non-
PPO1
PPO2
R128M
R128M
R128A
TP
TP




transgenic
WT
WT
F420I
F420I
F420M
hemG
hemG


Compound
g ai/ha
/
Q
Q
R
K
Q
R
R





Uracilpyridine 2
200
100


75
70
65
35
30



100
100


45
58
15
40
33



80
100



50
100


45
18
10
55
28



30
100
100
100



10
100
100
100



5
100
100
100



1
100
15
23


Uracilpyridine 3
80
100



30
100
100
100



10
100
98
100



5
100
83
80



1
88
10
48


Uracilpyridine 4
200
100


80
73
60
65



100
100


60
58
60
38



80
100



50
100


40
30
55
30



30
100
100
100



10
100
100
100



5
100
99
88



1
100
33
25


Uracilpyridine 5
80
100



30
100
100
100



10
100
99
100



5
100
90
90



1
100
45
28


Uracilpyridine 1
200
100


84
75
75
53



100
100


92
73
60
63



50
100


60
60
55
60


Uracilpyridine 10
200



100



50


Uracilpyridine 6
200



100



50


Uracilpyridine 7
200



100



50


Uracilpyridine 8
80
100



30
100
100
100



10
100
55
100



5
100
30
55



1
88
10
10


Uracilpyridine 9
80
100



30
100
98
100



10
100
70
100



5
100
50
68



1
85
10
38


Uracilpyridine 10
80
100



30
100
100
100



10
100
100
100



5
100
98
100



1
100
50
58






















ALOMY
ALOMY
AMATU
AMATU
AMATU
AMATU
ARBTH





PPO2
PPO2
PPO2
PPO2
PPO2
PPO2
PPO1





R137L
R137L
R128A
R128A
L397E
L397E
S305L





F438V
F438V
F420V
F420V
F420V
F420V
Y426M



Compound
g ai/ha
F
G
A
D
D
L
O







Uracilpyridine 2
200
23
20




100
18
10




80






45




50
18
0




30






33




100






0




50






0




1



Uracilpyridine 3
80






13




30






49




10






0




5






0




1



Uracilpyridine 4
200
20
8




100
20
15




80






95




50
8
8




30






0




10






0




5






0




1



Uracilpyridine 5
80






73




30






68




10






0




5






0




1



Uracilpyridine 1
200
65
28




100
33
75




50
20
5



Uracilpyridine 10
200
10
5
68
88
13
20




100
8
0
53
78
5
53




50
0
0
38
30
0
8



Uracilpyridine 6
200
18
0
30
28
8
15




100
0
0
43
38
0
0




50
0
0
0
0
0
0



Uracilpyridine 7
200
13
8
70
75
10
33




100
18
0
50
65
0
0




50
0
0
13
33
0
0



Uracilpyridine 8
80






0




30






0




10






0




5






0




1



Uracilpyridine 9
80






0




30






0




10






0




5






0




1



Uracilpyridine 10
80






99




30






99




10






8




5






10




1

















TABLE iii





Transgenic T2 Arabidopsis plants, sprayed post in the greenhouse with the indicated amount of PPO inhibitor + 1% (v/v)


MSO. Evaluation performed 14 Days After Treatment (DAT) and is shown as injury (%) relative to non-transgenic treated plants.



























ARBTH
ALOMY
ALOMY
ALOMY
ALOMY
ALOMY
ALOMY
ALOMY
ALOMY



g
WT MC 24
PPO2
PPO2
PPO2
PPO2
PPO2
PPO2
PPO2
PPO2



ai/
(non-
R137L
R137L
R137L
R137L
R137L
R137L
R137L
R137L


Compound
ha
transgenic)
F438M
F438M
F438M
F438M
F438V
F438V
F438V
F438V





Uracil-
100
100
0
0
0
0
0
0
0
0


pyridine 2



50
100
0
0
0
0
0
0
0
0


Uracil-
100
100
0
0
0
0
0
10
10
10


pyridine 4



50
100
0
0
0
0
10
0
0
0


Uracil-
100
100
20
0
0
0
0
25
35
40


pyridine 1



50
100
0
0
0
0
5
50
15
0







AMATU
AMATU
AMATU
AMATU
AMATU
AMATU
AMATU
AMATU
AMATU



g
PPO2
PPO2
PPO2
PPO2
PPO2
PPO2
PPO2
PPO2
PPO2



ai/
L397E
L397E
L397E
L397E
L397E
L397E
L397E
L397E
L397Q


Compound
ha
F420V
F420V
F420V
F420V
F420M
F420M
F420M
F420M
F420V





Uracil-
100
0
0
0
0
10
35
0
20
80


pyridine 2



50
0
0
0
15
0
0
0
0
45


Uracil-
100
0
30
0
0
15
35
60
20
80


pyridine 4



50
0
10
0
10
0
25
0
0
60


Uracil-
100
0
35
55
0
15
30
60
55
85


pyridine 1



50
0
10
0
35
0
10
15
40
40







ARBTH
AMATU
AMATU
AMATU
AMATU
AMATU
AMATU
AMATU
AMATU



g
WT MC 24
PPO2
PPO2
PPO2
PPO2
PPO2
PPO2
PPO2
PPO2



ai/
(non-
L397Q
R128A
R128A
R128A
R128A
R128A
R128A
R128A


Compound
ha
transgenic)
F420V
F420L
F420L
F420L
F420L
F420I
F420I
F420I





Uracil-
100
100
65
60
35
15
30
65
65
65


pyridine 2



50
100
0
0
0
0
15
0
45
65


Uracil-
100
100

10
65
20
20
65
50
55


pyridine 4



50
100

0
10
0
0
0
50
40


Uracil-
100
100
65
60
90
95
80
65
80
95


pyridine 1



50
100
75
65
75
5
75
70
75
60







AMATU
AMATU
AMATU
AMATU
AMATU
AMATU
AMATU
AMATU
AMATU



g
PPO2
PPO2
PPO2
PPO2
PPO2
PPO2
PPO2
PPO2
PPO2



ai/
R128A
R128A
R128A
R128A
R128A
R128A
R128A
R128A
R128A


Compound
ha
F420I
F420M
F420M
F420M
F420M
F420V
F420V
F420V
F420V





Uracil-
100
30
0
65
30
0
85
70
25
65


pyridine 2



50
0
0
0
30
0
0
0
20
0


Uracil-
100
65
25
65
40
45
15
75
25
40


pyridine 4



50
50
0
15
25
30
75
70
60
75


Uracil-
100
60
35
80
65
65
95
98
95
80


pyridine 1



50
60
55
65
25
40
90
55
65
95









Example 11: Demonstration of Herbicide Tolerance in Mutagenized Non-Transgenic Rice

Selected mutants are transferred to pots and grown in the greenhouse for seed production. 5 The resulting M1 progeny are screened for the presence and zygosity of tolerance conferring mutations in the OsPPO2 gene, e.g. mutated OsPPO2 polypeptides as shown in SEQ ID Nos: 628, 629, 630, 631, 632, 633, 634, 635, 636, or 637. M1 plants containing a homozygous in the OsPPO2 gene are kept for seed production to generate a stable, homozygous, herbicide tolerant line. Homozygous lines ca. 2 weeks old are sprayed using a track sprayer with uracilpyridine 2 or uracilpyridine 4 supplemented with 0.1% methylated seed oil. Once sprayed, plants are kept on drought conditions for 24 hours before being watered and fertilized again. Sprayed plants are photographed and rated for herbicide injury at 3 days and 7 days treatment. The results are shown in FIGS. 1 to 4.


Example 12: Herbicide Selection using Tissue Culture

Media is selected for use and kill curves developed as specified above. For selection, different techniques are utilized. Either a step wise selection is applied, or an immediate lethal level of herbicide is applied. In either case, all of the calli are transferred for each new round of selection. Selection is 4-5 cycles of culture with 3-5 weeks for each cycle. Cali are placed onto nylon membranes to facilitate transfer (200 micron pore sheets, Biodesign, Saco, Me.). Membranes are cut to fit 100×°mm Petri dishes and are autoclaved prior to use 25-35 calli (average weight/calli being 22 mg) are utilized in every plate. In addition, one set of calli are subjected to selection in liquid culture media with weekly subcultures followed by further selection on semi-solid media. Mutant lines are selected using the uracilpyridines as disclosed SUPRA, and photosynthesis inhibitor diuron as negative control. Efficiencies of obtaining mutants is high either based on a percentage of calli that gave rise to a regenerable, mutant line or the number of lines as determined by the gram of tissue utilized.


Example 13: Maize Whole Plant Transformation and PPO Inhibitor Tolerance Testing

Immature embryos are transformed according to the procedure outlined in Peng et al. (WO2006/136596). Plants are tested for the presence of the T-DNA by Taqman analysis with the target being the nos terminator which is present in all constructs. Healthy looking plants are sent to the greenhouse for hardening and subsequent spray testing. The plants are individually transplanted into MetroMix 360 soil in 4″ pots. Once in the greenhouse (day/night cycle of 27° C./21° C. with 14 hour day length supported by 600 W high pressure sodium lights), they are allowed to grow for 14 days. TO or T1 plants are sprayed with a treatment of the uracilpyridines as disclosed SUPRA and photosynthesis inhibitor diuron as negative control. Herbicide injury evaluations are taken at 7, 14 and 21 days after treatment. Herbicide injury evaluations are taken 2, 7, 14 and 21 days post-spray to look for injury to new growth points and overall plant health. The top survivors are transplanted into gallon pots filled with MetroMix 360 for seed production.


Transgenic T2 Corn plants harbouring PPO inhibitor tolerance trait, were sprayed post with the indicated amount of uracilpyridine +1% (v/v) MSO. Evaluation performed 14 Days After Treatment (DAT) and shown as injury (0-9) relative to non-transgenic treated plants.


Injury Scale: 0-9, 0=no imjury, 9=maximum injury. Note: segregating lines. The results are shown in the following Table and in FIGS. 7 and 8.
















Corn Trial














R128A,
R128A,
R128A,
J553



Rate
F420I
F420L
F420L
non


Compound
(g/ha)
Event 1
Event 2
Event 3
transgenic















Check

0
0
1
5




1
1
1
6




1
2
0
6


1% MSO

0
0
0
1




1
0
0
2




1
1
1
1


Uracilpyridine
25
1
0
1
9


2

0
1
0
9




1
0
0
9


Uracilpyridine
50
0
1
0
9


2

1
1
0
9




0
1
1
9


Uracilpyridine
100
1
1
0
9


2

0
1
1
9




1
1
1
9


Uracilpyridine
25
0
0
0
9


4

0
0
1
7




0
0
0
7


Uracilpyridine
50
0
1
1
9


4

1
0
0
7




0
1
0
9


Uracilpyridine
100
1
0
1
9


4

0
1
0
9




0
1
0
9










5 Transgenic T3Maize plants harboring a PPO inhibitor tolerance trait sprayed post in the field at the V3 leaf stage with 100 g/ha of PPO inh. 2+1% (v/v) MSO. Evaluation performed 2 and 12 Days After Treatment (DAT) and is shown as injury (%) relative to non-transgenic treated plants. Pictures taken 2 DAT.












Plant Injury (%)











J553/TR5753




DAT
Non-transgenic
AMATU_PPO2_R128A_F420L
AMATU_PPO2_R128A_F420I





 2
 95
0
0


12
100
0
0









Example 14: Soybean Transformation and PPO Inhibitor Tolerance Testing

Soybean cv Jake is transformed as previously described by Siminszky et al., Phytochem Rev. 5:445-458 (2006). After regeneration, transformants are transplanted to soil in small pots, placed in growth chambers (16 hr day/8 hr night; 25° C. day/ 23° C. night; 65% relative humidity; 130-150 microE m-2 s-1) and subsequently tested for the presence of the T-DNA via Taqman analysis. After a few weeks, healthy, transgenic positive, single copy events are transplanted to larger pots and allowed to grow in the growth chamber. An optimal shoot for cutting is about 3-4 inches tall, with at least two nodes present. Each cutting is taken from the original transformant (mother plant) and dipped into rooting hormone powder (indole-3-butyric acid, IBA). The cutting is then placed in oasis wedges inside a bio-dome. The mother plant is taken to maturity in the greenhouse and harvested for seed. Wild type cuttings are also taken simultaneously to serve as negative controls. The cuttings are kept in the bio-dome for 5-7 days and then transplanted to 3 inch pots and then acclimated in the growth chamber for two more days. Subsequently, the cuttings are transferred to the greenhouse, acclimated for approximately 4 days prior to spray. T0 or 2 —week old T1 plants are sprayed with a treatment of the uracilpyridines as disclosed SUPRA and photosynthesis inhibitor diuron as negative control. Herbicide injury evaluations are taken at 2, 7, 14 and 21 days after treatment.


Transgenic T2 or T3 Soybean plants harbouring PPO inhibitor tolerance trait, were sprayed post in the greenhouse with the indicated amount of uracilpyridine +1% (v/v) MSO. Evaluation performed 7 Days After Treatment (DAT) and shown as injury (0 - 9) relative to non-transgenic treated plants. Injury Scale: 0-9, 0=no imjury, 9=maximum injury. Note: segregating lines.





















R128A,
R128A,
L397E,
L397E,
L397Q,
Jake



Rate
F420L
F420I
F420V
F420M
F420M
non


Compound
(g/ha)
Event 1
Event 2
Event 3
Event 4
Event 5
transgenic






















Uracilpyridine 1
25
1
1
2
1
1
9




1
1
1
2
2
9




1
*
1
1
2
9




1
9
1
1
1
9


Uracilpyridine 1
50
1
1
9
2
1
9




1
*
1
0
2
9




1
*
1
1
1
9




1
3
2
1
2
9


Uracilpyridine 1
100
1
1
1
1
3
9




1
2
1
2
2
9




1
*
9
*
*
9




4
1
9
1
3
9


Uracilpyridine 1
200
1
1
9
4
3
9




1
1
2
1
3
9




1
1
9
2
*
9




1
1
1
2
4
9



1% MSO
1
*
1
1
1
3




1
*
2
1
2
2




1
1
1
2
2
2




2
*
1
1
1
3



Check
1
*
0
1
0
1




0
0
1
1
2
0




0
*
*
1
*
1




1
*
2
1
*
1









Transgenic T2 or T3 Soybean plants harbouring PPO inhibitor tolerance trait, were sprayed post with the indicated amount of uracilpyridine +1% (v/v) MSO. Evaluation performed 14 Days After Treatment (DAT) and shown as injury (0-9) relative to non-transgenic treated plants. Injury Scale: 0-9, 0=no imjury, 9=maximum injury. Note: segregating lines. The results are shown in the following Table and in FIGS. 7 and 8.
















Soybean Trial














L397E,
L397E,
L397Q,
Jake



Rate
F420V
F420M
F420M
non


Compound
(g/ha)
Event 1
Event 2
Event 3
transgenic















Check

0
9
9
9




0
0
2
9




0
2
1
9


1% MSO

0
0
0
1




0
0
0
1




0
0
0
1


Uracilpyridine
25
0
0
0
9


2

0
0
9
9




0
0
3
9


Uracilpyridine
50
0
0
3
9


2

0
0
9
9




0
0
1
9


Uracilpyridine
100
0
0
1
9


2

0
0
3
9




0
0
2
9


Uracilpyridine
25
0
0
1
9


4

0
0
9
9




0
0
0
9


Uracilpyridine
50
0
0
9
9


4

0
0
9
9




0
0
3
9


Uracilpyridine
100
0
0
3
9


4

0
0
4
9




0
1
3
9









Transgenic T4 Soybean plants harbouring PPO inhibitor tolerance trait, were sprayed post with the indicated amount of uracilpyridine +1% (v/v) MSO. Evaluation performed 7 Days After Treatment (DAT) and shown as injury (0-9) relative to non-transgenic treated plants. Injury Scale: 0-9, 0=no imjury, 9=maximum injury. Asterisks indicates plants that did not germinate. Results are also shown in FIGS. 9 through 12.





















R128A +
R128A +
L397E +
L397E +
L397Q +
Jake



Rate
F420L
F420I
F420V
F420M
F420M
non-


Compound
(g/ha)
Event 1
Event 2
Event 3
Event 4
Event 5
transgenic






















Uracilpyridine 10
25
0
1
1
0
3
9




1
0
1
1
*
9




0
2
0
0
3
9




0
1
0
0
5
9




1
1
*
0
*
*




0
1
*
0
3
9


Uracilpyridine 10
50
1
1
*
0
4
9




1
2
1
1
4
9




0
1
*
0
4
9




1
2
*
0
4
9




0
2
0
0
4
9




1
2
1
1
4
9


Uracilpyridine 10
100
2
2
*
1
*
9




1
2
0
2
4
9




2
2
0
1
*
9




2
3
0
1
5
9




2
3
1
0
5
9




2
3
*
1
*
9


Uracilpyridine 20
25
2
2
0
0
4
9




0
2
1
0
3
9




1
2
0
1
*
9




0
2
*
0
3
9




1
2
0
0
*
9




2
1
*
0
3
9


Uracilpyridine 20
50
3
3
0
0
*
9




3
3
0
1
*
9




2
3
0
0
3
9




1
2
1
1
4
9




2
3
1
0
4
9




2
3
0
0
4
9


Uracilpyridine 20
100
3
4
*
0
*
9




4
4
0
0
4
9




5
4
0
1
*
9




5
4
*
1
4
9




5
4
0
1
7
9




*
4
2
1
*
9


Uracilpyridine 21
25
0
0
0
0
3
9




1
1
0
0
2
9




1
1
*
0
2
9




1
1
0
0
3
9




1
1
*
0
*
9




1
1
*
1
2
9


Uracilpyridine 21
50
1
2
0
0
3
9




2
2
*
0
*
9




1
1
0
0
3
9




1
2
0
0
3
9




2
2
0
1
3
9




1
2
0
1
*
9


Uracilpyridine 21
100
2
3
*
0
3
9




1
3
*
0
3
9




4
2
0
0
*
9




2
3
2
0
3
9




2
2
0
0
3
9




2
3
0
1
*
9


Uracilpyridine 22
25
0
1
*
1
*
9




0
0
0
0
1
9




0
0
0
0
*
9




1
1
0
0
1
9




0
2
0
0
2
9




1
1
1
1
1
9


Uracilpyridine 22
50
1
0
0
1
3
9




1
0
0
0
3
9




1
3
0
2
3
9




1
2
0
1
2
9




2
2
*
0
*
9




1
2
*
1
1
9


Uracilpyridine 22
100
1
2
*
0
*
9




1
3
0
0
4
9




1
1
1
0
4
9




1
2
0
1
*
9




2
2
0
1
4
9




2
3
1
0
4
9









Transgenic T3 Soybean plants harboring a PPO inhibitor tolerance trait, sprayed post in the field at the V3 leaf stage with 100 g/ha of PPO inh. 2+1% (v/v) MSO. Evaluation performed 2 and 12 Days After Treatment (DAT) and is shown as injury (%) relative to non-transgenic treated plants. Pictures taken 2 DAT.












Plant Injury (%)














Jake Non-
AMATU_PPO2_R128A,
AMATU_PPO2_L397E,
AMATU_PPO2_L397E,
AMATU_PPO2_L397Q,



EXP
transgenic
F420I
F420V
F420M
F420M
DAT
















PPO
92
10
0
5
5
2


Inh. 2


PPO
100
5
0
0
0
12


Inh. 2









The following gives a definition of the injury scores measured above:


Score Description of injury


0 No Injury


1 Minimal injury, only a few patches of leaf injury or chlorosis.


2 Minimal injury with slightly stronger chlorosis. Overall growth points remain undamaged.


3 Slightly stronger injury on secondary leaf tissue, but primary leaf and growth points are still undamaged.


4 Overall plant morphology is slightly different, some chlorosis and necrosis in secondary growth points and leaf tissue. Stems are intact. Regrowth is highly probable within 1 week.


5 Overall plant morphology is clearly different, some chlorosis and necrosis on a few leaves and growth points, but primary growth point is intact. Stem tissue is still green. Regrowth is highly probably within 1 week.


6 Strong injury can be seen on the new leaflet growth. Plant has a high probability to survive only through regrowth at different growth points. Most of the leaves are chlorotic/necrotic but stem tissue is still green. May have regrowth but with noticeable injured appearance.


7 Most of the active growth points are necrotic. There may be a single growth point that could survive and may be partially chlorotic or green and partially necrotic. Two leaves may still be chlorotic with some green; the rest of the plant including stem is necrotic.


8 Plant will likely die, and all growth points are necrotic. One leaf may still be chlorotic with some green. The remainder of the plant is necrotic.


9 Plant is dead.

Claims
  • 1. A method for controlling undesired vegetation at a plant cultivation site, the method comprising the steps of: a) providing, at said site, a plant that comprises at least one nucleic acid comprising a nucleotide sequence encoding a protoporphyrinogen oxidase (PPO) polypeptide which is resistant or tolerant to a EPPO inhibiting herbicideb) applying to said site an effective amount of said herbicide,wherein the PPO inhibiting herbicide is a uracilpyridine of formula (I)
  • 2. The method according to claim 1, wherein the herbicide resistant or tolerant PPO polypeptide comprises one or more of the following motifs 1, 2, and/or 3: a. Motif 1: SQ[N/K/H]KRYI, wherein the Arg at position 5 within said motif is substituted by any other amino acid;b. Motif 2: TLGTLFSS, wherein the Leu at position 2, and/or the Gly at position 3, and/or the Leu at position 5 within said motif is substituted by any other amino acid;c. Motif 3: [F/Y]TTF[V/I]GG, wherein the Phe at position 4 within said motif is substituted by by any other amino acid.
  • 3. The method according to claim 1, wherein the herbicide resistant or tolerant PPO polypeptide comprises a variant of the amino acid sequence of SEQ ID NO: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 5 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 577, 579, 581, 583, 585, 587, 589, 591, 593, 595, 597, 599, 601, 603, 605, 607, 609, 611, 613, 615, 617, 619, 621, 623, 625, 627, or 637, which variant comprises one or more of the following substitutions: a. the amino acid corresponding to Arg128 of SEQ ID NO: 1 is substituted by by any other amino acid.b. The amino acid corresponding to Gly211 of SEQ ID NO: 1 is substituted by any other amino acidc. the amino acid corresponding to Leu397 of SEQ ID NO: 1 is substituted by by any other amino acid.d. the amino acid corresponding to Gly398 of SEQ ID NO: 1 is substituted by any other amino acide. the amino acid corresponding to Leu400 of SEQ ID NO: 1 is substituted by any other amino acidf. the amino acid corresponding to Phe420 of SEQ ID NO: 1 is substituted by by any other amino acid.
  • 4. The method according to claim 1, wherein the herbicide resistant or tolerant PPO polypeptide comprises the amino acid sequence of SEQ ID NO: 265, 266, 267, 268, 269, 270, 271, 272, 273, 274, 275, 276, 277, 278, 279, 280, 281, 282, 283, 284, 285, 286, 287, 288, 289, 25 290, 291, 292, 293, 294, 295, 296, 297, 298, 299, 300, 301, 302, 303, 304, 305, 306, 307, 308, 309, 310, 311, 312, 313, 314, 315, 316, 317, 318, 319, 320, 321, 322, 323, 324, 325, 326, 327328, 329, 330, 331, 332, 333, 334, 335, 336, 337, 338, 339, 340, 341, 342, 343, 344, 345, 346, 347, 348, 349, 350, 351, 352, 353, 354, 355, 356, 357, 358, 359, 360, 361, 362, 363, 364, 365, 366, 367, 368, 369, 370, 371, 372, 373, 374, 375, 376, 377, 378, 379, 380, 381, 382, 383, 384, 385, 30 386, 387, 388, 389, 390, 391, 392, 393, 394, 395, 396, 397, 398, 399, 400, 401, 402, 403, 404, 405, 406, 407, 408, 409, 410, 411, 412, 413, 414, 415, 416, 417, 418, 419, 420, 421, 422, 423, 424, 425, 426, 427, 428, 429, 430, 431, 432, 433, 434, 435, 436, 437, 438, 439, 440, 441, 442, 443, 444, 445, 446, 447, 448, 449, 450, 451, 452, 453, 454, 455, 456, 457, 458, 459, 460, 461, 462, 463, 464, 465, 466, 467, 468, 469, 470, 471, 472, 473, 474, 475, 476, 477, 478, 479, 480, 35 481, 482, 483, 484, 485, 486, 487, 488, 489, 490, 491, 492, 493, 494, 495, 496, 497, 498, 499, 500, 501, 502, 503, 504, 505, 506, 507, 508, 509, 510, 511, 512, 513, 514, 515, 516, 517, 518, 519, 520, 521, 522, 523, 524, 525, 526, 527, 528, 529, 530, 531, 532, 533, 534, 535, 536, 537, 538, 539, 540, 541, 542, 543, 544, 545, 546, 547, 548, 549, 550, 551, 552, 553, 554, 555, 556, 557, 558, 559, 560, 561, 562, 563, 564, 565, or a variant thereof.
  • 5. The method according to claim 1, wherein the herbicide resistant or tolerant PPO polypeptide comprises the amino acid sequence of SEQ ID NO: 240, 241, 242, 243, 244, 245, 246, 247, 248, 249, 250, 251, 252, 253, 254, 255, 256, 257, 258, 259, 260, 261, or 262.
  • 6. The method according to claim 1, wherein the plant comprises at least one additional heterologous nucleic acid comprising a nucleotide sequence encoding a herbicide tolerance enzyme.
  • 7. The method according to claim 1 wherein the uracilpyridine of formula (I) is applied in conjunction with one or more additional herbicides.
CROSS-REFERENCE TO RELATED APPLICATION

This application is a continuation U.S. patent application Ser. No. 16/767,917, which is a U.S. National Stage application of International Application No. PCT/IB2018/059413, filed Nov. 28, 2018, which claims priority to U.S. Patent Application No. 62/592,037, filed on Nov. 29, 2017.

Provisional Applications (1)
Number Date Country
62592037 Nov 2017 US
Continuations (1)
Number Date Country
Parent 16767917 May 2020 US
Child 18049158 US