Qingdao Kingagroot Chemical Compound Co., Ltd.

The present invention relates to the field of biotechnology, and specifically relates to a PPO polypeptide tolerant to PPO-inhibiting herbicides and use thereof. The said polypeptide contains the motif “LLLNYI”, wherein leucine L at position 3 in the said motif is substituted with any other amino acid, or tyrosine Y at position 5 is substituted with any other amino acid. It can be used in plants, including commercial crops, to greatly improve plant resistance to PPO-inhibiting herbicides according to the herbicide resistance characteristics and herbicide selectivity, so as to control weed growth economically.

The invention belongs to the technical field of agricultural chemicals, and particularly relates to an aryl formamide compound containing chiral sulfur oxide or salt thereof, a preparation method, a herbicidal composition and a use thereof. The aryl formamide compound containing chiral sulfur oxide or salt thereof has the following structural formula: Z 1 , and Z 2 each independently represent nitro, halogen, or cyano, etc.; X represents unsubstituted or substituted unsubstituted or substituted unsubstituted or substituted unsubstituted or substituted unsubstituted or substituted unsubstituted or substituted or unsubstituted or substituted Q represents halogen, cyano, cyanoalkyl, or nitro, etc.; Y represents hydrogen, etc.; wherein the compound has advantages of excellent herbicidal activity, higher crop safety, and especially good selectivity for key crops such as wheat, rice, corn.

The invention relates to the field of pesticide technology, and in particular a type of pyridyloxy carboxylic oxime derivative, preparation method, herbicidal composition and application thereof. The pyridyloxy carboxylic oxime derivative is represented by formula I, wherein, A, B each independently represent halogen, or alkyl or cycloalkyl with or without halogen; C represents hydrogen, halogen, alkyl or haloalkyl; Q represents halogen, cyano, cyanoalkyl, hydroxyalkyl, amino, nitro, formyl, alkyl with or without halogen and the like; R 1 and R 2 independently represent hydrogen, halogen, cyano, nitro, alkyl, haloalkyl, alkenyl, cycloalkyl, alkoxy, acyloxy, alkylthio, or unsubstituted or substituted aryl, etc.; M represents nitro or NR 3 R 4 . The compound has excellent herbicidal activity and higher crop safety, especially good selectivity for key crops such as rice.

The invention belongs to the technical field of pesticides, and specifically relates to a type of substituted-isoxazoline-containing aromatic compound, preparation method therefor, herbicidal composition and use thereof. The compound is as shown in general formula I: Wherein, Q represents Y represents halogen, halogenated alkyl or cyano; Z represents halogen; X 1 , X 2 each independently represent hydrogen, halogen, alkyl, etc.; X 3 represents halogen, cyano, etc.; X 4 each independently represents —COOR 5 or -alkyl-COOR 5 ; R 5 each independently represents hydrogen, alkyl, etc. The compound has excellent herbicidal activity against gramineous weeds, broadleaf weeds, and so on even at low application rates, and has high selectivity for crops.

The invention belongs to the technical field of pesticides, and specifically relates to a 4-pyridinyl formamide compound or a derivative thereof, a preparation method therefor, a herbicidal composition and the use thereof. The 4-pyridinyl formamide compound is as represented by formula (I), wherein, X and Y each independently represent nitro, halogen, cyano, formyl, thiocyano, mercapto, etc.; and M represents an unsubstituted or substituted structure (II). The compound, and the derivative and the composition thereof have excellent herbicidal activity and a higher crop safety, and establish good selectivity, especially for key crops such as wheat and rice.

The invention relates to the field of pesticide technology, and in particular a type of substituted thiadiazinone dioxide, preparation method, herbicidal composition and application thereof. The substituted thiadiazinone dioxide, as shown in general formula I: wherein, R 1 and R 2 each independently represent hydrogen, cyano or alkyl with or without halogen and so on; X represents hydrogen or halogen; Y represents C—Z or N; Z represents hydrogen or halogen; and when X represents halogen, Z represents hydrogen. The compound has excellent herbicidal activity against gramineous weeds, broadleaf weeds or amaranthaceous weeds, and has high selectivity for crops such as soybean, corn, rice or wheat.

The present invention relates to a mutant p-hydroxyphenylpyruvate dioxygenase (HPPD) protein or a bioactive fragment thereof and an isolated polynucleotide comprising a nucleic acid sequence encoding the protein or fragment thereof, wherein the mutant p-hydroxyphenylpyruvate dioxygenase (HPPD) protein or a bioactive fragment thereof retains or enhances the property of catalyzing the conversion of p-hydroxyphenylpyruvate (HPP) to homogentisate and is significantly less sensitive to HPPD-inhibiting herbicides than a wild-type HPPD. The present invention also relates to a nucleic acid construct, an expression vector and a host cell comprising the polynucleotide, as well as to a method for producing a plant that has the property of catalyzing the conversion of p-hydroxyphenylpyruvate (HPP) to homogentisate and significantly reduced sensitivity to HPPD-inhibiting herbicides.

The present disclosure relates to the field of pesticide technology, and in particular pyridyloxy carboxylate derivatives of Formula I, preparation methods, herbicidal compositions and applications thereof.

The disclosure relates to the field of pesticide technology, and in particular a type of fused-ring substituted aromatic compound represented by general formula I, preparation method, herbicidal composition and use thereof.

The invention relates to the field of pesticide technology, and in particular a type of pyridyloxy thioester derivative, preparation method, herbicidal composition and application thereof. The pyridyloxy thioester derivative is represented by formula I, wherein, A, B each independently represent halogen, or alkyl or cycloalkyl with or without halogen; C represents hydrogen, halogen, alkyl or haloalkyl; Q represents halogen, cyano, cyanoalkyl, hydroxyalkyl, amino, nitro, formyl, alkyl with or without halogen or the like; M represents alkyl or alkenyl with or without halogen or the like; X represents nitro or NR 1 R 2 . The compound has excellent herbicidal activity and higher crop safety, especially good selectivity for key crops such as rice.