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Combined effects of microplastics and flupyradifurone on gut microbiota and oxidative status of honeybees (Apis mellifera L.)

文献类型： 外文期刊

作者： An, Tong 1 ; Feng, Wangjiang 1 ; Li, Han 1 ; Wu, Yanyan 1 ; Dai, Pingli 1 ; Liu, Yong-Jun 1 ;

作者机构： 1.Chinese Acad Agr Sci, Inst Apicultural Res, State Key Lab Resource Insects, Beijing 100193, Peoples R China

关键词： Honeybee; Microplastics; Flupyradifurone; Gut microbiota; Oxidative status

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 270 卷

页码：

收录情况： SCI

摘要： The increasing accumulation of polystyrene microplastics (PS-MPs) and the widespread use of flupyradifurone (FPF) affect honeybee health adversely. However, the combined impact of PS-MPs and FPF toxicity on honeybees remains unknown. In this study, honeybee (Apis mellifera L.) was fed with sucrose solutions containing PS-MPs (0.5 or 5 mu m, 50 mg/L), FPF (4 mg/L), or their combination for 21 days under laboratory conditions. The effects of PS-MPs and FPF on honeybee physiology, gut microbiota, and stress-related enzyme activities and genes were measured. The findings showed that concurrent exposure to PS-MPs and FPF significantly reduced honeybee survival, with additive effects, decreased sucrose consumption and body weight, and devastated midgut epithelial cells. FPF was the main stressor affecting survival, while PS-MPs exerted a greater influence on body weight. Co-exposure to PS-MPs (0.5 mu m) and FPF disrupted gut microbiota, significantly decreasing Lactobacillus abundance. Supplementation with Lactobacillus helsingborgensis improved honeybee survival, highlighting the protective role of gut microbiota. PS-MPs exposure, alone or combined with FPF, increased oxidative stress and decreased detoxification and immune capabilities in honeybees. These findings suggested the combined toxicity of PS-MPs and FPF on honeybees, underscoring the potential ecology risk posed by multiple stressors.

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