定数感应增强了由Pseudomonas sp.引起的Mn{\displaystyle Mn} (II) 氧化. YoHu13通过升高的Mn(III) 中间形成
Zhixiong Huang1, Xingxing Wang2, Lihong Yang1
1State Key Laboratory of Soil Pollution Control, School of Environmental Science and Engineering, Southern University of Science and Technology, Shenzhen 518055, China; Guangdong-Hong Kong Joint Laboratory for Soil and Groundwater Pollution Control, School of Environmental Science and Engineering, Southern University of Science and Technology, Shenzhen 518055, China; MEE Key Laboratory of Integrated Surface Water-Groundwater Pollution Control, School of Environmental Science and Engineering, Southern University of Science and Technology, Shenzhen 518055, China.
Journal of hazardous materials
|December 12, 2025
概括
定数感应 (QS) 增强了细菌对的氧化. 添加乙同素乳 (AHLs) 显著提高了去除率,为采矿废水提供了一个新的生物修复策略.
科学领域:
- 环境微生物学 环境微生物学
- 生物修复是一种生物修复.
- 细菌的传播 细菌的传播
背景情况:
- 由于高 (Mn) 含量,矿井影响的水面临挑战.
- 氧化的细菌 (MOB) 对于高效的生物修复至关重要.
- 定数感应 (QS) 调节微生物反应,但其在MOB中的作用尚不清楚.
研究的目的:
- 调查乙同素乳 (AHLs) 介导的QS对Mn(II) 氧化由Pseudomonas sp.产生的影响. YoHu13.13 这是一个很好的例子.
- 量化AHLs对氧化率的影响.
- 阐明QS对MOB活动的贡献.
主要方法:
- 培养 Pseudomonas sp. 这种植物. 在不同的AHLs度下,YoHu13.
- 测量总的 (IV) (tMn (IV)) 和 (III) 的生产率.
- 使用X射线光电子光谱 (XPS) 进行地表矿物质分析.
主要成果:
- 此外,AHLs显著增加了tMn (IV) 和Mn (III) 的生产率.
- 最大产量为273μM/d (tMn(IV)) 和25.6μM/d (Mn(III)) 在使用10μM C12-HSL时实现.
- 经过AHLs处理,XPS证实表面含量升高.
结论:
- QS,特别是AHLs,增强了Mn2的MOB.II氧化.
- 这项研究揭示了Mn2生物消除的QS调节.
- 这些发现为优化污染水的生物修复提供了洞察力.
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