在废水处理系统中,将三甲生物转化与功能反应和抗菌素耐药性进化联系在一起的机制
Hao Wang1, Liying Zhang2, Hanlin Cui3
1State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin 150090, China.
Water research
|June 15, 2024
概括
了解抗微生物生物转化是水安全的关键. 三碳素生物转化涉及多个途径,稳定了废水处理功能,控制了抗菌素耐药性风险.
科学领域:
- 环境微生物学环境微生物学
- 废水处理工程 废水处理工程
- 抗微生物耐药性 抗微生物耐药性
背景情况:
- 在废水生物处理系统中,抗微生物生物转化对于调节代谢功能和抗微生物耐药性 (AMR) 演变至关重要.
- 将抗微生物生物转化与全身功能和抗菌耐药性风险联系在一起的机制仍然不太清楚.
研究的目的:
- 在复杂的无氧化水解酸化 (HA) -无氧化 (ANO) /氧化 (O) 过程中研究三甲 (TCC) 生物转化机制.
- 阐明在TCC暴露下系统功能障碍和AMR风险的动态演变.
- 确定缓解TCC诱导风险的关键途径.
主要方法:
- 基因基因组测序用于识别TCC生物转化途径中的功能基因 (还原性脱,胺酸水解,氨酸解).
- 代谢功能的分析,包括挥发性脂肪酸 (VFA) 生产,氨同化和化.
- 对抗微生物耐药性基因 (ARG) 丰富的评估.
主要成果:
- 暴露于TCC抑制了VFA的产生,NH4+的同化和化.
- 单个TCC生物转化途径不足以缓解代谢抑制或减少ARG丰富.
- 减少性脱,水解和随后的代谢途径的共存稳定了代谢功能,并部分控制了AMR风险.
结论:
- TCC生物转化与系统功能的动态演变和废水处理中的AMR风险密切相关.
- 涉及多个途径的完整TCC生物转化对于稳定代谢功能和减轻AMR风险至关重要.
- 研究结果为加强对复杂生物处理系统中TCC风险的控制提供了关键的见解.
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