在二次供水系统中揭开细菌和真核生物群落:动力学,组装和健康影响
Xucheng Cai1, Yuxing Hu1, Shuang Zhou2
1State Key Laboratory of Pollution Control and Resource Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai 200092, China; Shanghai Institute of Pollution Control and Ecological Security, Shanghai 200092, China; Key Laboratory of Urban Water Supply, Water Saving and Water Environment Governance in the Yangtze River Delta of Ministry of Water Resources, China.
Water research
|September 15, 2023
概括
这项研究揭示了真核微生物,主要是原生动物和甲基动物,主导二级供水系统 (SWSSs). 坦克生物膜和沉积物是关键的微生物来源,影响水安全和公共卫生.
科学领域:
- 环境微生物学环境微生物学
- 微生物生态学 微生物生态学
- 水质科学 水质科学
背景情况:
- 二级供水系统 (SWSS) 对高层建筑至关重要,但面临着越来越多的微生物风险.
- 了解SWSS中的微生物生态,特别是真核生物,至关重要但有限.
- 目前在SWSS中存在关于微生物动力学和组装机制的知识差距.
研究的目的:
- 在SWSS中全面调查真核生物和细菌群落.
- 分析跨水运输路径和息地 (水,生物膜,沉积物) 的微生物动态.
- 识别自来水中的微生物来源和影响微生物组成的因素.
主要方法:
- 欧核生物和细菌群体的高通量测序.
- 使用正常化随机率 (NST) 进行社区结构和组合分析.
- 使用FEAST分析和并发网络分析来追踪自来水微生物群的来源.
主要成果:
- 在SWSS中的真核生物主要是原生动物和甲基动物;细菌和真核生物群落在运输过程中发生转移.
- 细菌组合是随机的,而真核组合是决定性的;生物膜/沉积物是微生物热点.
- 坦克生物膜是自来水中真核生物的主要来源;工程因素影响微生物群落.
结论:
- SWSS微生物生态是复杂的,具有不同的细菌和真核细胞组装过程.
- 生物膜和沉积物在微生物相互作用和自来水污染中发挥着关键作用.
- 调查结果为SWSS管理和控制公共卫生风险提供了洞察力.
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