基于草甘的除草剂 (GBH) 挑战了 (Eremias argus) 的温度调节,补偿性变暖可以减轻这种影响
Simin Yu1, Yufan Nie1, Zikang Wang1
1Department of Applied Chemistry, China Agricultural University, Yuanmingyuan West Road 2, Beijing 100193, China.
The Science of the total environment
|July 7, 2023
概括
草甘 (GBH) 暴露会损害爬行动物的温度调节和大脑健康,特别是在更温暖的条件下. 这种化学污染对面临气候变化的种群构成重大威胁.
科学领域:
- 环境毒理学环境毒理学
- 类学 类学 类学
- 气候变化生物学
背景情况:
- 化学污染和全球变暖对爬行动物构成重大威胁.
- 草甘 (GBH) 对爬行动物的影响基本上是未知的.
- 这些环境压力因素可以在协同作用下相互作用.
研究的目的:
- 调查草甘暴露和温度升高对蒙古赛跑 (Eremias argus) 的综合影响.
- 评估对温度调节,肝脏排毒,氧化应激和大脑代谢的影响.
- 了解爬行动物对同时发生的气候变化和化学污染的反应.
主要方法:
- 一个为期60天的交叉实验,控制的草甘 (GBH) 暴露 (控制/GBH) 和温度处理 (当前/更温暖的气候).
- 监测首选和活体体温,以评估温度调节的准确性.
- 分析肝脏排毒酶,氧化应激标志物和大脑非向代谢.
主要成果:
- 温暖的温度诱导了的生理和行为调整,以调节的温度.
- 草甘 (GBH) 暴露导致了大脑氧化损伤和改变了histidine代谢,降低了温度调节的准确性.
- 在高温下,GBH对温度调节的影响被减轻,可能是通过温度依赖的解毒.
结论:
- 草甘 (GBH) 的微妙毒理作用可能会损害爬行动物的温度调节.
- 气候变化可能会加剧化学污染对爬行动物种群的风险.
- 长期暴露于草甘 (GBH) 与变暖相结合,对像Eremias argus这样的构成全物种风险.
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