Abstract: Provided are a mutant HPPD polypeptide having high resistance to a herbicide and an encoding gene thereof, and an application thereof in an improved plant. The amino acid at position 282 of the mutant HPPD polypeptide is mutated from arginine to serine at a wild-type HPPD polypeptide. In addition, the mutant HPPD polypeptide further comprises an amino acid at position 349 that is mutated from glutamic acid to lysine, and/or an amino acid at position 156 that is mutated from alanine to valine. The mutated HPPD polypeptide can be used for cultivating plants having resistance to a herbicide having HPPD inhibition.

Abstract: The present invention relates to a group of glycosyltransferase, and an application thereof.

Abstract: Provided are a method for improving rice yield by jointly knocking out ABA receptor PYL family genes and a use thereof.

Abstract: The present invention relates to a group of glycosyltransferase, and an application thereof.

Abstract: Disclosed is a use of the BXL gene or a protein encoded thereby. Specifically, when the expression of the BXL gene or a protein encoded thereby is inhibited, traits of plants can be significantly improved, comprising: (i) enhancing the stress resistance of plants; and/or (ii) the resistance to pathogens; and/or (iii) reducing lignin content and increasing fiber and pectin content. In addition, inhibitors of the BXL gene or a protein encoded thereby can also be used in feed compositions, and are used for improving feed palatability.

Abstract: Disclosed are a high stress resistant plant growth regulator and a preparation and use thereof. In particular, the compound provided by the present invention is an ABA substitute for significantly improving the stress resistance of plants, and therefore has a very wide application prospect.

Abstract: Provided are a RNAi target gene that is lethal to aphids and the use thereof. Specifically, provided are six gene fragments resulting in the death of aphid nymphs and/or death thereof in the adult stage based on RNA interference technology. The death of the aphids can be caused by spraying a dsRNA-containing composition onto plants to feed aphids or directly spraying same onto the skin of the aphids.

Abstract: The present invention relates to a method for improving the heterologous synthesis of a polyketide by E. coli and use thereof. The yield of the polyketide heterologously synthesized by E. coli is significantly increased by attenuating the expression of seventy-two genes, such as sucC and talB, in a host strain, wherein the highest yield increase rate can reach 60% or more. Currently, erythromycin is the most clear model compound in the study on the biosynthesis of polyketids. The production strain of the present invention enables massive accumulation of 6-deoxyerythronolide (6-dEB), an erythromycin precursor, in the fermentation process, laying the foundation for the industrial production of the heterologous synthesis of erythromycin by E. coli.

Abstract: Provided are a mutant HPPD polypeptide having high resistance to a herbicide and an encoding gene thereof, and an application thereof in an improved plant. The amino acid at position 282 of the mutant HPPD polypeptide is mutated from arginine to serine at a wild-type HPPD polypeptide. In addition, the mutant HPPD polypeptide further comprises an amino acid at position 349 that is mutated from glutamic acid to lysine, and/or an amino acid at position 156 that is mutated from alanine to valine. The mutated HPPD polypeptide can be used for cultivating plants having resistance to a herbicide having HPPD inhibition.

Abstract: Disclosed are a small molecule compound for enhancing plant stress resistance, a preparation method therefor, and application thereof. Specifically, disclosed are compounds as shown in formula I, salts thereof, optical isomers thereof, racemes thereof, solvates thereof, or precursors thereof. Moreover, the compound of the present invention is a substitute of ABA, can significantly improve the plant stress resistance, and thus has an extremely wide application prospect.