期刊论文

Bai, Lianyang;Pan, L

英文

Ecotoxicology and Environmental Safety

0147-6513

2023

263

115263

10.1016/j.ecoenv.2023.115263

This work was supported by the National Natural Science Foundation of China [grant numbers 32001923 ]; the Natural Science Foundation of Hunan Province, China [grant numbers 2021JJ20002 ]; the Science and Technology Innovation Program of Hunan Province [grant numbers 2021RC3087 ]; the China Agriculture Research System [grant numbers CARS-16-E19 ]; the Postgraduate Scientific Research Innovation Project of Hunan Province [grant numbers QL20210171 ] and the Science and Technology Talent Support Project of Hunan Province [grant numbers 2023TJ-N11 ].

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The excessive use of chemical herbicides has resulted in evolution of herbicide-resistant weeds. Cytochrome P450 monooxygenases (P450s) are vital detoxification enzymes for herbicide-resistant weeds. Herein, we confirmed a resistant (R) Polypogon fugax population showing resistance to quizalofop-p-ethyl, acetolactate synthase (ALS)-inhibiting herbicide pyroxsulam, and several other ACCase (acetyl-CoA carboxylase)-inhibiting herbicides. Molecular analysis revealed no target-site gene mutations in the R population. Foliar spraying with malathion clearly reversed the quizalofop-p-ethyl phytotoxic...