手性农药对蜜蜂的立体选择性作用研究进展

    Research progress of stereoselective effects of chiral pesticides on honey bees

    • 摘要: 手性农药含有一组或多组对映异构体,在生物活性、毒性以及环境行为等方面常表现出显著的对映体选择性作用差异,因而引发了广泛的关注和讨论。蜜蜂是重要的经济昆虫,在作物授粉和生物多样性保护方面具有举足轻重的作用。目前关于农药对蜜蜂健康的影响是世界性研究热点,而从立体异构水平评价手性农药对蜜蜂健康影响的研究却十分匮乏,亦未见对现有报道的系统总结梳理。鉴于此,本文选择新烟碱类、拟除虫菊酯类、三唑类等代表性手性农药为文献调研对象,系统梳理了相关药剂对蜜蜂的立体选择性作用,并总结了其在蜜粉源植物中的选择性降解情况,旨在解析手性农药施用后对蜜蜂的潜在暴露途径、方式及影响,为手性农药的环境风险评价提供参考,同时为优势对映异构体的高效开发应用提供方向。

       

      Abstract: Chiral pesticides, consisting of one or more groups of enantiomers, often exhibit significant differences in enantioselective effects in terms of biological activity, toxicity, and environmental behavior, thus triggering widespread concern and discussion. Bees are economically crucial insects that play an important role in crop pollination and biodiversity conservation. The effects of pesticides on bee health have become a major focus of global research; however, studies evaluating the impacts of chiral pesticides on bees at the stereoisomeric level remain limited, and a systematic summary of the existing findings is still lacking. Given this, this paper reviews the existing literature on representative chiral pesticides, including neonicotinoids, pyrethroids, and triazoles. We aim to systematically elucidate the stereoselective effects of these compounds on bees and summarize their selective degradation characteristics in honey- or pollen-source plants, thereby highlighting the potential exposure pathways for bees following application. We hope this review will provide valuable insights for the environmental risk assessment of chiral pesticides and offer guidance for the development and application of beneficial enantiomers.

       

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