洞察微生物群落和耐药基因的演变,这些基因是由部分化系统中的苏克拉洛斯诱导的,而三素是预暴露的
Liqin Zeng1, Jingfeng Gao1, Yingchao Cui1
1National Engineering Laboratory for Advanced Municipal Wastewater Treatment and Reuse Technology, Faculty of Environment and Life, Beijing University of Technology, Beijing 100124, China.
Journal of hazardous materials
|September 23, 2023
概括
废水中的糖 (SUC) 和三三 (TCS) 会增加抗生素耐药性基因 (ARG) 的传播. SUC在暴露于TCS的系统中加剧了ARG的传播,造成了生态风险.
科学领域:
- 环境科学 环境科学
- 微生物学 微生物学
- 环境化学环境化学
背景情况:
- 糖 (SUC) 和三三 (TCS) 是常见的环境污染物,在污水中共同存在.
- 抗生素耐药性基因 (ARG) 是一个日益严重的公共卫生问题.
- 部分化系统对于废水处理至关重要.
研究的目的:
- 研究部分化系统中SUC对ARG传播的影响.
- 评估SUC和TCS预暴露对ARG动态的综合影响.
- 了解微生物群落在SUC和TCS压力下ARG传播中的作用.
主要方法:
- 经营了两个部分化反应堆150天,其中一个是TCS预暴露.
- 引入了不同度的SUC (0.1-10毫克/升).
- 分析了化性能,ARG丰富度 (细胞内和细胞外) 和微生物社区结构.
主要成果:
- SUC没有显著影响氨氧化性能.
- 在TCS预暴露后,部分化得到维持.
- 在TCS在SUC压力下的预暴露后,细胞外ARG在污泥和水中显著增加.
- 在TCS预暴露系统中,SUC加剧了ARG的丰富和传播.
- 微生物社区结构发生了转变,发现了潜在的ARG宿主 (Thauera,Nitrosomonas).
结论:
- SUC可能会增加ARG传播的风险,特别是在以前接触过TCS的环境中.
- SUC和TCS之间的相互作用可以促进废水处理系统中ARG的传播.
- 了解这些相互作用对于管理新出现的污染物和减轻ARG传播至关重要.
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