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Comparative analyses of the effects of sublethal doses of emamectin benzoate and tetrachlorantraniliprole on the gut microbiota of Spodoptera frugiperda (Lepidoptera: Noctuidae)

文献类型： 外文期刊

作者： Chang, Hong 1 ; Guo, Jianglong 2 ; Qi, Guojun 1 ; Gao, Yan 1 ; Wang, Siwei 1 ; Wang, Xiaonan 1 ; Liu, Yanping 1 ;

作者机构： 1.Inst Plant Protect, Guangdong Acad Agr Sci, Key Lab Green Prevent & Control Fruits & Vegetable, Guangdong Prov Key Lab High Technol Plant Protect,, Guangzhou 510640, Peoples R China

2.Hebei Acad Agr & Forestry Sci, Plant Protect Inst, IPM Ctr Hebei Prov, Key Lab Integrated Pest Management Crops Northern, Baoding 071000, Peoples R China

关键词： Spodoptera frugiperda; gut bacteria; 16S rRNA; insecticide resistance

期刊名称：JOURNAL OF INSECT SCIENCE （ 影响因子：2.2； 五年影响因子：2.0 ）

ISSN：

年卷期： 2023 年 23 卷 4 期

页码：

收录情况： SCI

摘要： Spodoptera frugiperda (J. E. Smith) is an important invasive pest that poses a serious threat to global crop production. Both emamectin benzoate (EB) and diamide insecticides are effective insecticides used to protect against S. frugiperda. Here, 16S rRNA sequencing was used to characterize the gut microbiota in S. frugiperda larvae exposed to EB or tetrachlorantraniliprole (TE). Firmicutes and Proteobacteria were found to be the dominant bacterial phyla present in the intestines of S. frugiperda. Following insecticide treatment, larvae were enriched for species involved in the process of insecticide degradation. High-level alpha and beta diversity indices suggested that exposure to TE and EB significantly altered the composition and diversity of the gastrointestinal microbiota in S. frugiperda. At 24 h post-EB treatment, Burkholderia-Caballeronia-Paraburkholderia abundance was significantly increased relative to the control group, with significant increases in Stenotrophobacter, Nitrospira, Blastocatella, Sulfurifustis, and Flavobacterium also being evident in these larvae. These microbes may play a role in the degradation or detoxification of EB and TE, although further work will be needed to explore the mechanisms underlying such activity. Overall, these findings will serve as a theoretical foundation for subsequent studies of the relationship between the gut microbiota and insecticide resistance in S. frugiperda (J. E. Smith) (Lepidoptera: Noctuidae).

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