饮用水生物膜微生物群对水质的影响:实体分布系统的见解
Yolanda Moreno1, Laura Moreno-Mesonero1, Patricia Soler2
1Research Institute of Water and Environmental Engineering (IIAMA), Universitat Politècnica de València, Camino de Vera s/n, 46022, Valencia, Spain.
The Science of the total environment
|February 21, 2024
概括
饮用水的生物膜含有各种细菌和真核生物,包括潜在的病原体,尽管消毒. 标准含量不足以控制管道中的这些有弹性的微生物群落.
科学领域:
- 微生物学 微生物学
- 环境科学 环境科学
- 水的质量 水的质量
背景情况:
- 生物膜占饮用水分配系统中95%以上的生物质.
- 这些微生物群落对水的美学和微生物质量产生重大影响.
- 了解生物膜的组成对于有效的水资源管理至关重要.
研究的目的:
- 在实体饮用水分配系统中研究生物膜的细菌和真核微生物群.
- 评估这些生物膜中的活性生物质.
- 为了确定当前存在的占主导地位的属和潜在的致病微生物.
主要方法:
- 基于Amplicon的元基因组学被用于微生物组分析.
- 处理和测序了41个生物膜样本.
- 评估了细菌和真核生物群落,以及活跃生物量.
主要成果:
- 在属级组成中观察到显著的异质性,其中Desulfovibrio,Ralstonia和Bacillus占主导地位.
- 与腐蚀相关的细菌 (例如,Desulfovibrio,Hyphomicrobium) 和潜在的病原体 (例如,Helicobacter,Pseudomonas,Legionella) 是普遍存在的.
- 像Opisthokonta和Archaeplastida这样的原生动物非常丰富,包括潜在的致病性Acanthamoeba和Naegleria.
结论:
- 散装水中自由的度不足以防止生物膜中的不良细菌和原生动物.
- 生物膜表现出高度的活性生物质,表明弹性.
- 在生物膜微生物群和管道材料之间没有发现直接相关性.
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