Multiple Resistance to Three Modes of Action of Herbicides in a Single Italian Ryegrass (Lolium multiflorum L.) Population in China

نویسندگان

چکیده

Italian ryegrass (Lolium multiflorum L.), a cross-pollinated grass, is gradually becoming predominant weed in wheat fields China and evolving resistance to many groups of herbicides. The aim this study determine the levels single L. population from field Henan Province China, three modes action (MoAs) herbicides further characterize potential mechanisms. This evolved multiple herbicide resistances pyroxsulam [acetolactate synthase (ALS)], pinoxaden [acetyl-CoA carboxylase (ACCase)] isoproturon [photosystem II (PSII)]. Target-site (TSR) mutations (Pro-197-Gln, Pro-197-Thr, Trp-574-Leu) non-target-site (NTSR) mediated by cytochrome P450 monooxygenase (CYP450) genes were associated with resistance. Pinoxaden was conferred two TSR mutations, which referred rare Ile-2041-Val mutation common Ile-1781-Leu but different nucleotide substitutions (CTA/TTA). CYP450- glutathione-S-transferase (GST)-mediated main mechanisms for herbicide-resistant (MHR) PSII inhibitor isoproturon. first case MoAs (ALS, ACCase PSII) China. Diverse including NTSR mean exhibits high degree plasticity.

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ژورنال

عنوان ژورنال: Agronomy

سال: 2023

ISSN: ['2156-3276', '0065-4663']

DOI: https://doi.org/10.3390/agronomy13010216