4 results about "Triazine herbicide" patented technology

The application discloses a triazine herbicide propoxur degrading bacterial strain and application thereof, the bacterial strain is SWFU-DH02 strain which is negative in gram staining reaction and is identified as Microbacterium sp. Exiguobacteruim sp. ) on November 22, 2021, and is deposited in the China General Microbiological Culture Collection Center, and the strain preservation number is CGMCC No. 23948. The application discloses, for the first time, the degradation effect of Microbacterium sp. Exiguobacteruim sp. ) on triazine herbicide propoxur, and a Microbacterium sp. high-efficiency degrading bacterium SWFU-DH02 is screened, the degradation efficiency of the bacterium on propoxur can reach 75.08%, and the bacterium grows optimally under the conditions of pH 7.0, temperature 28 DEG C and salt concentration 1%. The degrading bacterial strain SWFU-DH02 has the characteristics of simple culture, rapid growth and high efficiency of degradation. The application can solve the pollution problem of triazine herbicide propoxur in soil or water, prevent the phytotoxicity of herbicide residues on subsequent crops, and produce non-toxic and non-polluting green agricultural products. The application provides a new biological approach for modern pesticide pollution control.

The invention belongs to the technical field of chemical analysis, and particularly relates to a sample pretreatment technology and an analysis method of a triazine herbicide. The ionic type conjugated microporous polymer is formed by polymerization of 2, 4, 6-tri (4-ethynyl phenyl)-1, 3, 5-triazine (TEPT) and 1, 3-bis (4-bromophenyl)-1H-imidazole-3-onium bromide, and the ionic type conjugated microporous polymer is formed by polymerization of 1, 3-bis (4-bromophenyl)-1H-imidazole-3-onium bromide. The ionic type conjugated microporous polymer is prepared by cross coupling of 2, 4, 6-tri (4-ethynyl phenyl)-1, 3, 5-triazine (TEPT) and 1, 3-bis (4-bromophenyl)-1H-imidazole-3-onium bromide, and the ionic type conjugated microporous polymer is prepared by cross coupling of 2, 4, 6-tri (4-ethynyl phenyl)-1, 3, 5-triazine (TEPT) and 1, 3-bis (4-bromophenyl)-1H- The ionic conjugated microporous polymer is used for preparing a solid phase extraction (SPE) small column, an SPE-LC-MS / MS is established after the extraction condition is optimized, and the SPE-LC-MS / MS is used for selective enrichment and accurate detection of trace triazine herbicides in environmental water bodies (such as underground water and waste water) and food samples.

This invention relates to the field of biodegradation, specifically to a liquefied Serratia marcescens and its application in the degradation of atrazine. The liquefied Serratia marcescens was deposited on January 12, 2026, at the China General Microbiological Culture Collection Center (CGMCC), with accession number CGMCC No. 37176. This invention discloses the utilization of... Serratia liquefaciens A1 degrades atrazine. This bacterium exhibits a degradation rate of up to 99.19% for atrazine in water and up to 98.50% for atrazine in soil. The strain of this invention demonstrates strong biodegradation ability for atrazine, with rapid degradation and high efficiency. It can be used to prepare formulations for degrading atrazine or for remediating atrazine pollution in the environment. The strain provided by this invention enriches the strain resource library of atrazine-degrading bacteria, offering a new option for the degradation of triazine herbicides and the bioremediation of polluted environments.

The present invention provides a method for producing a plant resistant to herbicides, the method expressing a base editing composition or base editor in a target plant or part of the plant, and growing or culturing the plant or part of the plant, the base editing composition has an activity of editing an adenine (A) base of a DNA encoding a plant chloroplast D1 protein into a guanine (G) base and / or editing a cytosine (C) base into a thymine (T) base. The herbicide is preferably a triazine herbicide, and more preferably atrazine. A plant with resistance to the herbicide is a plant in which a serine residue of the D1 protein is mutated into glycine or an alanine residue is mutated into valine, the serine residue is a serine residue corresponding to a 264th-site serine residue of the D1 protein of Arabidopsis thaliana, and the alanine residue is a serine residue corresponding to a 264th-site serine residue of the D1 protein of the Arabidopsis thaliana and is a serine residue corresponding to a 264th-site serine residue of the D1 protein of the Arabidopsis thaliana and a valine residue corresponding to the 264th-site serine residue of the D1 protein of the Arabidopsis thaliana. The alanine residue is an alanine residue corresponding to the 251 alanine residue of the D1 protein of the arabidopsis thaliana. The base editing composition or base editor may comprise one or more fusion proteins, the one or more fusion proteins may each independently comprise a DNA binding protein, and the enzyme protein may comprise at least one of a cytosine deaminase, an adenine deaminase, and a nicking enzyme. The plant produced by the method is obtained by editing a DNA sequence of 5 '-AGT-3' of a serine residue (a serine residue corresponding to a 264th-site serine residue of D1 protein of arabidopsis thaliana) of encoding chloroplast D1 protein into 5 '-GGT-3' of encoding glycine, and editing a DNA sequence of 5 '-AGT-3' of encoding chloroplast D1 protein into 5 '-GGT-3' of encoding glycine. Or the DNA sequence encoding the 5 '-GCT-3'of the alanine residue is edited into an initial gene edited plant encoding the 5'-GTT-3 'of valine, or the DNA sequence encoding the 5'-GCT-3 'of the alanine residue is edited into a 5'-GTT-3 'of valine. The invention provides a genetically edited plant or part of a plant, a progeny or seed thus obtained, and a method for controlling weeds by applying herbicides in the vicinity of these plants.