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Co-exposure to polystyrene microplastics and glyphosate induces gut microbiota dysbiosis and cognitive impairment in honeybees
npj Emerging Contaminants
2026
Yiqing Wu,
Lina Qin,
Yimeng Zhang,
Yifan Jia,
Yaoyang Lu,
Nianlong Wang,
Hao Zheng,
Liang Li,
Zijing Zhang
Summary
Researchers found that combined exposure of honeybees to polystyrene microplastics and the herbicide glyphosate significantly increased mortality, damaged the midgut, disrupted gut microbiota, and impaired cognitive behavior—effects more severe than either pollutant alone—suggesting the gut-brain axis plays a key role in pollinator vulnerability to co-occurring environmental contaminants.
Polymers