Epigenetic Regulation of CYP72A385-Mediated Metabolic Resistance to Novel Auxin Herbicide Florpyrauxifen-benzyl in Echinochloa crus-galli (L.) P. Beauv
文献类型： 外文期刊
作者： Wang, Hao 1 ; Fang, Jiapeng 1 ; Li, Xiaoxu 4 ; Sun, Penglei 5 ; Gao, Haitao 1 ; Ren, Yanrong 1 ; Liu, Ying 1 ; Feng, Zhike 1 ; Dong, Liyao 1 ;
作者机构： 1.Nanjing Agr Univ, Coll Plant Protect, Nanjing 210095, Peoples R China
2.Nanjing Agr Univ, Key Lab Integrated Pest Management Crops East Chin, Minist Agr & Rural Affairs, Nanjing 210095, Peoples R China
3.Shanghai Acad Agr Sci, Shanghai 201403, Peoples R China
4.Shandong Agr Univ, Coll Plant Protect, Tai An 271018, Peoples R China
5.Chinese Acad Agr Sci, Inst Plant Protect, Beijing 100193, Peoples R China
关键词： Echinochloa crus-galli; florpyrauxifen-benzyl; herbicide metabolism; DNA methylation; EcMETTL7A
期刊名称：JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY （ 影响因子：6.1； 五年影响因子：6.3 ）
ISSN： 0021-8561
年卷期： 2024 年 72 卷 16 期
页码：
收录情况： SCI
摘要： Weed's metabolic resistance to herbicides has undermined the sustainability of herbicides and global food security. Notably, we identified an Echinochloa crus-galli (L.) P. Beauv population (R) that evolved resistance to the never-used florpyrauxifen-benzyl, in which florpyrauxifen-benzyl was metabolized faster than the susceptible E. crus-galli population (S). RNA-seq identified potential metabolism-related genes, EcCYP72A385 and EcCYP85A1, whose expression in yeast exhibited the capacity to degrade florpyrauxifen-benzyl. Region-2 in the EcCYP72A385 promoter showed significant demethylation after florpyrauxifen-benzyl treatment in the R population. DNA methyltransferase inhibitors induce EcCYP72A385 overexpression in the S population and endow it with tolerance to florpyrauxifen-benzyl. Moreover, methyltransferase-like 7A (EcMETTL7A) was overexpressed in the S population and specifically bound to the EcCYP72A385 promoter. Transgenic EcCYP72A385 in Arabidopsis and Oryza sativa L. exhibited resistance to florpyrauxifen-benzyl, whereas EcMETTL7A transgenic plants were sensitive. Overall, EcCYP72A385 is the principal functional gene for conferring resistance to florpyrauxifen-benzyl and is regulated by EcMETTL7A in E. crus-galli.
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