微塑料和草甘对蜜蜂幼虫的协同作用
G A Mitton1, M Corona2, M Alburaki2
1Instituto de Investigaciones en Producción Sanidad y Ambiente (IIPROSAM), Facultad de Ciencias Exactas y Naturales, Universidad Nacional de Mar del Plata, Centro Científico Tecnológico Mar del Plata, CONICET, Centro de Asociación Simple CIC PBA, Funes 3350, Mar del Plata 7600, Argentina; Centro de Investigaciones en Abejas Sociales, Facultad de Ciencias Exactas y Naturales, Universidad Nacional de Mar del Plata, Mar del Plata 7600, Argentina.
Environmental toxicology and pharmacology
|September 8, 2024
概括
对微塑料 (MPs) 和草甘 (GLY) 的联合暴露会损害蜜蜂幼虫的生存率和体重. 这种协同效应表明,这些普遍的环境污染物对蜜蜂健康存在重大风险.
科学领域:
- 环境科学 环境科学
- 生态毒理学 生态毒理学
- 养蜂科学 养蜂科学 养蜂科学
背景情况:
- 微塑料 (MP) 污染是一个日益严重的全球问题.
- MPs和草甘 (GLY) 对蜜蜂健康的联合影响在很大程度上是未知的.
- 蜜蜂是重要的授粉者,面临着许多环境压力因素.
研究的目的:
- 研究MPs和GLY单独或组合对蜜蜂幼虫的影响.
- 评估对幼虫发育的影响,基因调控 (解毒,抗氧化,免疫) 和氧化应激.
- 为了确定MPs和GLY是否对蜜蜂具有协同作用.
主要方法:
- 蜜蜂幼虫暴露于不同度的MPs和GLY.
- 测量了幼虫的生存率和体重.
- 分析了关键排毒,抗氧化和免疫标记物的基因表达.
- 评估了氧化应激生物标志物的活性,例如催化酶.
主要成果:
- 对MPs和GLY的联合暴露显著降低了蜜蜂幼虫的生存率和体重.
- 仅仅暴露于MPs并没有导致幼虫发育的显著差异.
- 两种MP和GLY都降低了防御蛋白-1基因的调节.
- 联合暴露独特地降低了门菌素和增加了酶活性,表明了协同效应.
结论:
- 微塑料和草甘对蜜蜂幼虫具有协同毒性.
- 这种组合导致免疫抑制,并减少幼虫的生存率和体重.
- 这些发现凸显了同时出现的环境污染物对重要的授粉者构成的潜在生态风险.
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