亲和差异决定了由 siderophores 重建的 anammox 社区的组装和相互作用模式
Ziyang Dong1, Yuxin Ma1, Mengwen Yu1
1Department of Environmental Engineering, Zhejiang University, Hangzhou, China.
The Science of the total environment
|July 6, 2023
概括
通过提高社区的弹性和改变微生物组合,Siderophores提高了anammox过程的稳定性. 这些化合物调节细菌相互作用,揭示了过程优化的关键分子机制.
科学领域:
- 环境微生物学环境微生物学
- 生物地质化学循环 生物地质化学循环
- 污水处理 污水处理 污水处理
背景情况:
- 亚纳莫克斯 (无氧氧化) 过程的稳定性取决于亚纳莫克斯社区的弹性.
- 社区的稳定性是由微生物聚集和相互作用动态所决定的.
- 铁化化合物 - - 铁类化合物 - - 对于细菌的铁获取至关重要.
研究的目的:
- 为了研究肠杆菌素和杆菌素的作用,对Ca.特定的 siderophores. 布罗卡迪亚和卡. Kuenenia,影响 anammox 社区集会,交互模式和稳定性.
- 为了阐明基底的分子机制 siderophore-mediated调节的anammox社区.
主要方法:
- 对暴露于菌素和菌素的anammox社区进行比较分析.
- 评估社区稳定性指标,包括脆弱性.
- 评估微生物社区组装模式和决定性过程.
- 量化细菌的相互依赖性和受体-连接体亲和力 (siderophore-Fe结合).
主要成果:
- 赛德罗显著改善了anammox社区的稳定性,降低了多达72.53%的脆弱性.
- 菌素和菌素改变了社区继承速度和组合,分别增加了9.77%和80.87%的决定性过程.
- 赛德罗福斯减少了对Ca的依赖. 布罗卡迪亚和卡. Kuenenia 在伴侣细菌上,具有不同程度的减少.
- siderophore-Fe复合体与细菌膜受体的差异亲和力解释了社区重建中的差异.
结论:
- 通过调节anammox微生物社区组装和相互作用,Siderophores有效地提高了anammox过程稳定性.
- 该研究揭示了特定的分子机制,包括 siderophore-receptor亲和力,驱动这些稳定性增强.
- 这项研究提供了通过有针对性的 siderophore 应用来优化 anammox 过程的见解.
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