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: Tong An;Wangjiang Feng;Han Li;Yanyan Wu;Pingli Dai;Yong Jun Liu
作者机构:
关键词: Flupyradifurone;Gut microbiota;Honeybee;Microplastics;Oxidative status
期刊名称: Environmental Research
ISSN: 0013-9351
年卷期: 2025 年 270 卷
页码:
收录情况: SCIE(2025版) ; ; EI(2025版)
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 μm, 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 μm) 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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