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Impacts of Imidacloprid and Flupyradifurone Insecticides on the Gut Microbiota of Bombus terrestris

文献类型： 外文期刊

作者： Zhang, Qingchao 1 ; Wang, Qinglin 2 ; Zhai, Yifan 1 ; Zheng, Hao 1 ; Wang, Xiaofei 2 ;

作者机构： 1.Shandong Acad Agr Sci, Inst Plant Protect, Jinan 250100, Peoples R China

2.China Agr Univ, Coll Food Sci & Nutr Engn, Beijing 100083, Peoples R China

3.Minist Agr & Rural Affairs, Key Lab Nat Enemies Insects, Jinan 250100, Peoples R China

4.Shandong Prov Engn Technol Res Ctr Biocontrol Cro, Jinan 250100, Peoples R China

关键词： B. terrestris; imidacloprid; flupyradifurone; microcolony; gut microbiota

期刊名称：AGRICULTURE-BASEL （ 影响因子：2.925； 五年影响因子：3.044 ）

ISSN：

年卷期： 2022 年 12 卷 3 期

页码：

收录情况： SCI

摘要： Bumblebees are important pollinators for crops and wild flowering plants. Various pesticides have threatened the abundance and diversity of bumblebees. In addition to direct sublethal effects, pesticides may alter the gut microbial communities of bees. Imidacloprid and flupyradifurone insecticides both bind to the nicotinic acetylcholine receptor. However, the latter was assumed to be harmless for honeybees and can even be applied to flowering crops. In this study, we assessed the impacts of these two pesticides on queenless microcolonies and the gut microbiota of Bombus terrestris. We found that 10 mu g/L imidacloprid significantly impeded syrup consumption, and post-poned the egg-laying period, larvae, and pupae development. It decreased the relative abundance of the bumblebee-specific symbionts, Apibacter and Lactobacillus Firm-5. On the contrary, 10 mu g/L flupyradifurone did not reduce syrup consumption, block larvae and pupae development in bumble-bees. Although no significant phenotypes were observed, PICRUST revealed that flupyradifurone suppressed pathways, involving carbohydrate metabolism, nucleotide metabolism, translation, and membrane transport. Our findings suggest the appropriate use of this new pesticide may be considered safe for bumblebees, but the underlying mechanism warrants further investigation.

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