Metabolic resistance to bensulfuron-methyl endowed by the CdCYP71FL1 gene in Cyperus difformis from China
文献类型： 外文期刊
作者： Ma, Yonglin 1 ; Huang, Mengge 1 ; Qin, Jianying 4 ; Zheng, Wei 1 ; Zheng, Tao 1 ; Li, Weisheng 1 ; Qiu, Meisha 1 ; Li, Jingbo 1 ; Wang, Yanhui 1 ;
作者机构： 1.Guangxi Acad Agr Sci, Plant Protect Res Inst, Key Lab Green Prevent & Control Fruits & Vegetable, Guangxi Key Lab Biol Crop Dis & Insect Pests, Nanning 530007, Peoples R China
2.Guangxi Vocat Univ Agr, Nanning 530007, Peoples R China
3.Guangxi Acad Agr Sci, Guangxi Crop Genet Improvement & Biotechnol Lab, Nanning 530007, Peoples R China
4.Guangxi Plant Protect Stn, Nanning 530007, Peoples R China
关键词： Cyperus difformis; Bensulfuron-methyl; Herbicide resistance; Nontarget-site resistance; CdCYP71FL1
期刊名称：PESTICIDE BIOCHEMISTRY AND PHYSIOLOGY （ 影响因子：4.0； 五年影响因子：4.5 ）
ISSN： 0048-3575
年卷期： 2025 年 213 卷
页码：
收录情况： SCI
摘要： Cyperus difformis is a problematic weed in direct-seeded rice fields in China. Due to long-term selection pressure from herbicides, C. difformis has evolved resistance to bensulfuron-methyl (BSM). Our previous study revealed the existence of both target-site gene mutations and metabolic resistance mechanisms in the HN-8 population. However, the specific mechanisms of metabolic resistance were not fully understood and therefore were investigated further. The resistant HN-8 population, compared to the susceptible population, exhibited over-expression of six cytochrome P450 monooxygenases (CYPs), five ATP-binding cassette transporters (ABCs), one UDPglucuronosyltransferases (UGT), and one Glutathione S-transferase (GST). Notably, three CYPs were identified as CdCYP71FL1, CdCYP74B57, and CdCYP94C180, with CdCYP71FL1 being induced by BSM in the HN-8 population. Heterologous expression of CdCYP71FL1 in Arabidopsis thaliana conferred resistance to BSM, bispyribac-sodium, and bentazone, while its expression in yeast facilitated the degradation of BSM. These results indicate that CdCYP71FL1 plays an important role in the metabolic resistance observed in the HN-8 population. Given the complexity of metabolic resistance compared to target-site resistance, it is crucial to prioritize tailored management strategies for herbicide-resistant weeds driven by metabolic mechanisms.
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