城市景观湖泊与退水隐藏着比生活水更高的抗生素耐药性风险
Qian Han1, Yu Wang1, Chenwei Shi1
1School of Public Health, Lanzhou University, Lanzhou 730000, China.
Journal of hazardous materials
|April 2, 2025
概括
城市湖泊含有抗生素耐药性基因 (ARG) 构成风险. 后水湖表现出更高的抗性,而活水湖具有更大的转移风险,黄河水作为关键来源.
科学领域:
- 环境科学 环境科学
- 微生物学 微生物学
- 公共卫生 公共卫生
背景情况:
- 城市湖泊中的抗生素耐药性基因 (ARG) 对水生生态系统和公共健康构成威胁.
- 对于不同类型的城市公园湖泊中ARG的命运和传播的了解有限,特别是回流水和生活水系统.
研究的目的:
- 为了全面地描述ARG的分布,多样性,起源和潜在的人类传播风险,在回流和活水湖中进行ARG的分布,多样性,起源和潜在的人类传播风险.
- 为了比较抗生素耐药性和退水和活水环境之间的风险转移.
- 确定这些湖泊中ARG和相关微生物群落的主要来源.
主要方法:
- 利用元基因组学和16S rRNA基因测序来分析ARG和移动遗传元素 (MGE) 的多样性和丰富性.
- 使用源追踪分析来确定ARG的来源.
- 进行了元基因组分类,以识别ARG和MGE的微生物宿主 (MAG).
主要成果:
- 水湖表现出更高的ARG多样性和相关的耐药性风险,而活水湖显示出更高的MGE多样性和转移风险.
- 黄河水被确定为两种湖泊类型中ARG的主要来源.
- 在人类便中发现的9种高风险的ARG表明潜在的环境到人传播途径. 携带ARG的MAG主要来自Actinobacteria,而携带MGE的MAG则属于蛋白质细菌.
结论:
- 不同的城市湖泊类型具有不同的抗生素耐药性和转移风险.
- 有效管理公园景观湖泊对于减轻抗生素耐药性的传播至关重要.
- 了解ARG来源和微生物宿主对于开发有针对性的干预措施至关重要.
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