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Early life imidacloprid and copper exposure affects the gut microbiome, metabolism, and learning ability of honey bees (Apis mellifera)

文献类型： 外文期刊

作者： Li, Xijie 1 ; Tang, Qihe 3 ; Hou, Mengshang 4 ; Pang, Yantao 3 ; Li, Dan 3 ; Chen, Yajuan 3 ; Fang, Richan 3 ; Deng, Yi 1 ; Zhang, Jun 3 ; Zhao, Chonghui 3 ; Li, Junjie 3 ; Chen, Yuan 5 ; Zhao, Yazhou 6 ; Guo, Jun 3 ; Qian, Kai 1 ;

作者机构： 1.First Peoples Hosp Yunnan Prov, Dept Thorac Surg, Kunming, Peoples R China

2.Kunming Univ Sci & Technol, Affiliated Hosp, Kunming, Peoples R China

3.Kunming Univ Sci & Technol, Fac Life Sci & Technol, Kunming 650500, Yunnan, Peoples R China

4.Yunnan Acad Agr Sci, Sericulture & Apiculture Res Inst, Mengzi 661101, Peoples R China

5.Pujia Life Technol Fuzhou Co Ltd, Fuzhou 350018, Peoples R China

6.Chinese Acad Agr Sci, State Key Lab Resource Insects, Inst Apicultural Res, Beijing 100093, Peoples R China

关键词： Apis mellifera; Imidacloprid; Copper; Learning ability; Gut microbiota; Non-targeted metabolomics

期刊名称：ENVIRONMENTAL RESEARCH （ 影响因子：7.7； 五年影响因子：7.7 ）

ISSN： 0013-9351

年卷期： 2025 年 273 卷

页码：

收录情况： SCI

摘要： The pesticide imidacloprid and the heavy metal copper provide some degree of protection to plants, while at the same time causing varying degrees of damage to bees. However, few studies have investigated the negative effects of imidacloprid and copper exposure on newly emerged bees (young bees), especially when both are present in a mix. In this study, young bees were exposed to sterile sucrose solutions containing imidacloprid (10 mu g/L, 100 mu g/L), copper (10 mg/L, 50 mg/L), or a mix of both (10 mu g/L + 10 mg/L) for 5 days to assess their gut system and behavior, with survival and dietary consumption recorded over 21 days. We found that imidacloprid and copper reduced honeybee survival, dietary intake, and learning ability, decreased gut microbiota diversity, and caused metabolic disruptions. Notably, the mix of imidacloprid and copper had a synergistic negative effect. Correlation analyses revealed that the honeybee gut microbiota influences bee immunity and behavior by regulating metabolic pathways related to ascorbate, tryptophan, and carbohydrates. Our results demonstrate that imidacloprid and copper, either alone or in a mix, alter young bee health through a complex mechanism of toxicity. These findings highlight imidacloprid and copper's negative effects on young honeybees, offering insights for future pesticide and heavy metal impact research.

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