抗生素耐药性基因和微生物群体在硫法迪亚下的微藻-细菌系统中的反应:机制和影响
Shengnan Li1, Yucan Xi1, Ke Wang1
1State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin 150090, China.
Journal of environmental sciences (China)
|July 2, 2025
概括
微藻-细菌系统有效地处理废水,并降低抗生素耐药性基因 (ARG),就像在硫亚压力下的硫基因一样. 这些系统还增强了微生物社区的多样性和细胞外聚合物质.
科学领域:
- 环境微生物学 环境微生物学
- 废水处理技术 废水处理技术
- 抗生素耐药性 抗生素耐药性
背景情况:
- 微藻-细菌系统提供可持续的废水处理.
- 了解药物压力下的微生物社区动态至关重要.
- 与微藻相关的抗生素耐药性基因 (ARG) 需要进一步调查.
研究的目的:
- 研究硫法迪亚对微生物群落结构和微藻-细菌系统中的代谢活动的影响.
- 为了评估硫法迪亚和相关的ARG的去除效率.
- 为了比较微藻-细菌系统与活性污泥系统的性能.
主要方法:
- 培养微藻-细菌系统和活性污泥系统.
- 暴露于硫法迪亚 (1毫克/升).
- 分析微生物社区结构 (16S rRNA测序),ARG (qPCR) 和细胞外聚合物质 (EPS) 的组成.
主要成果:
- 与活性污泥相比,微藻-细菌系统显示出更好的氨去除 (72.3%).
- 水解被确定为主要的硫法迪亚降解途径.
- 硫法迪亚应激导致微藻-细菌系统中硫基因 (sul1, sul2, sul3, sulA) 丰富度显著减少.
- 微藻似乎可以抑制水平基因转移.
- 在微藻-细菌系统中观察到,真菌 (Rozellomycota,Dipodascaceae,Rhodotorula,Geotrichum) 的丰富性增加和更高的EPS含量 (蛋白质,多糖化物).
结论:
- 微藻-细菌系统有效地去除营养物质并减轻抗生素耐药性.
- 这些系统促进了独特的微生物社区结构,增加了真菌种群.
- 微藻在调节ARG传播和增强EPS生产方面发挥着重要作用,为可持续的废水处理提供了宝贵的见解.
关键词:
抗生素耐药性基因是抗生素耐药性的基因.克洛瑞拉 (Chlorella pyrenoidosa) 是一种化物.微藻类是一种微藻类.微藻 - 细菌联盟联盟微生物社区的微生物社区.苏尔法迪亚辛 (sulfadiazine) 是一种硫酸盐.更多相关视频
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