Molecular mechanisms of cytochrome P450-mediated detoxification of tetraniliprole, spinetoram, and emamectin benzoate in the fall armyworm, Spodoptera frugiperda (JE Smith)
文献类型： 外文期刊
作者： Wang, Aiyu 1 ; Zhang, Yun 1 ; Liu, Shaofang 3 ; Xue, Chao 1 ; Zhao, Yongxin 4 ; Zhao, Ming 1 ; Yang, Yuanxue 1 ; Zhang, Jianhua 1 ;
作者机构： 1.Shandong Acad Agr Sci, Inst Ind Crops, Jinan, Peoples R China
2.Shandong Acad Agr Sci, Yellow River Delta Modern Agr Res Inst, Dongying, Peoples R China
3.Jiangxi Sci & Technol Normal Univ, Coll life Sci, Key Lab Bioproc Engn Jiangxi Prov, Nanchang, Peoples R China
4.Shandong Prov Yuncheng Cty Agr & Rural Bur, Yuncheng, Peoples R China
关键词： enzyme activity; insecticide; P450 genes; RNA interference; Spodoptera frugiperda; synergistic effect
期刊名称：BULLETIN OF ENTOMOLOGICAL RESEARCH （ 影响因子：1.9； 五年影响因子：1.9 ）
ISSN： 0007-4853
年卷期： 2024 年
页码：
收录情况： SCI
摘要： The fall armyworm (FAW) Spodoptera frugiperda (J.E. Smith) is a highly damaging invasive omnivorous pest that has developed varying degrees of resistance to commonly used insecticides. To investigate the molecular mechanisms of tolerance to tetraniliprole, spinetoram, and emamectin benzoate, the enzyme activity, synergistic effect, and RNA interference were implemented in S. frugiperda. The functions of cytochrome P450 monooxygenase (P450) in the tolerance to tetraniliprole, spinetoram, and emamectin benzoate in S. frugiperda was determined by analysing changes in detoxification metabolic enzyme activity and the effects of enzyme inhibitors on susceptibility to the three insecticides. 102 P450 genes were screened via transcriptome and genome, of which 67 P450 genes were differentially expressed in response to tetraniliprole, spinetoram, and emamectin benzoate and validated by quantitative real-time PCR. The expression patterns of CYP9A75, CYP340AA4, CYP340AX8v2, CYP340L16, CYP341B15v2, and CYP341B17v2 were analysed in different tissues and at different developmental stages in S. frugiperda. Silencing CYP340L16 significantly increased the susceptibility of S. frugiperda to tetraniliprole, spinetoram, and emamectin benzoate. Furthermore, knockdown of CYP340AX8v2, CYP9A75, and CYP341B17v2 significantly increased the sensitivity of S. frugiperda to tetraniliprole. Knockdown of CYP340AX8v2 and CYP340AA4 significantly increased mortality of S. frugiperda to spinetoram. Knockdown of CYP9A75 and CYP341B15v2 significantly increased the susceptibility of S. frugiperda to emamectin benzoate. These results may help to elucidate the mechanisms of tolerance to tetraniliprole, spinetoram and emamectin benzoate in S. frugiperda.
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