通过水生生态系统中的塑料碎片媒介的抗生素耐药性病原体的载体传播
Ifra Ferheen1, Roberto Spurio1, Stefania Marcheggiani2
1School of Biosciences and Veterinary Medicine, University of Camerino, 62032 Camerino, Italy.
iScience
|June 17, 2024
概括
水生环境中的塑料碎片充当超级细菌的储存库,促进抗生素耐药细菌及其基因的传播. 这项研究强调了塑料.
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:
- 塑料材料被认为是重要的环境污染物.
- 这些污染物可以促进多药耐药细菌的积累和传播.
- 塑料在病原体和抗生素耐药基因 (ARG) 扩散中的作用需要进一步研究.
研究的目的:
- 调查人工塑料基板 (APS) 在意大利布拉奇亚诺湖病原细菌及其相关ARG的分散中的作用.
- 为了比较APS与原水 (RW) 上的微生物群落和抗生素耐药性概况.
主要方法:
- 在布拉奇亚诺湖的七个采样点潜水APS一个月.
- 收集和分析APS和RW样本.
- 使用标准的微生物学和生物化学技术进行细菌识别和抗生素耐药性分析.
- 对抗生素耐药性模式和ARG的272种细菌菌株进行了表征.
主要成果:
- 在APS和RW之间观察到致病细菌的多样性和丰富性的显著差异.
- 来自APS的细菌分离物与来自RW的细菌相比,表现出更高的抗生素耐药性模式.
- 相关的ARG和1类整体经常被检测到从APS回收的分离物中.
结论:
- 水生生态系统中的塑料材料充当病原细菌的储存库,包括"超级细菌".
- 塑料在水生环境中对抗生素耐药基因的传播有显著的贡献.
- 这些发现强调了塑料污染对抗微生物耐药性的环境风险.
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