pyrifos对淡水微生物群落和斑马鱼代谢能力的影响
Nuohan Xu1, Zhigao Zhou2, Bingfeng Chen1
1College of Environment, Zhejiang University of Technology, Hangzhou 310032, PR China.
Ecotoxicology and environmental safety
|July 6, 2023
概括
杀虫剂Chlorpyrifos会伤害水生微生物,改变它们的功能,增加抗生素耐药性的基因. 斑马鱼的肠道代谢也受到影响,突出显示了生态风险.
科学领域:
- 环境科学 环境科学
- 微生物学 微生物学
- 生态毒理学 生态毒理学
背景情况:
- pyrifos是一种广泛使用的有机酸盐杀虫剂.
- 它对水生微生态系统的影响仍然不太清楚.
- 水生环境经常含有可检测到的pyrifos.
研究的目的:
- 调查pyrifos对水生和斑马鱼肠道微生物群的影响.
- 评估微生物群落组成和功能潜力的变化.
- 评估与pyrifos污染相关的生态风险.
主要方法:
- 已建立的水生微观世界系统,pyrifos度为0.2和2.0μg/L.
- 利用了omics生物技术,包括元基因组学和16S rRNA基因测序.
- 在暴露7天和14天后分析了微生物群落.
主要成果:
- pyrifos (14天) 对水生微生物群落的结构,组成和稳定性产生了不利影响.
- 微生物多样性只显示了轻微的影响.
- 关键功能,特别是环境信息处理和新陈代谢,显著受损.
- 观察到抗生素耐药性基因增加和人类病原体的生长.
- 斑马鱼肠道微生物的代谢能力发生了变化,尽管没有明显的结构变化.
结论:
- pyrifos对水生环境构成重大生态风险.
- 杀虫剂破坏了微生物社区的功能,并促进了抗生素耐药性的传播.
- 这些发现为农业中合理使用农药提供了基础.
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