低温下活性污泥中细菌交流的作用

IF 7.9 2区 综合性期刊 Q1 CHEMISTRY, MULTIDISCIPLINARY
Yong-Chao Wang, Ya-Hui Lv, Sen Wang, Jia-Yi Wang, Wen-Xuan Yang, Feng Ju, Can Wang
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引用次数: 0

摘要

法定人数感应在微生物世界中非常普遍;然而,人们对这种群体行为在低温(15°C)下的作用仍然知之甚少。本文通过微观世界实验和全球调查揭示了法定人数感应在低温废水处理过程中的作用。在 15°C 的生物膜定殖过程中,法定人数感应细菌充当先锋,促进微生物从物种池迁移到载体表面。高生物膜形成率伴随着法定人数感应细菌的显著富集和基因表达的上调。通过分析全球活性污泥微生物组数据,我们发现法定量感应细菌呈现出典型的温度依赖性分布模式。该过程的性能与法定人数感应细菌的含量密切相关。我们的研究结果阐明了微生物群落对环境压力的潜在反应机制,并为在低温条件下加强废水生物处理过程提供了启示。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

The role of bacterial communication in activated sludge at low temperatures

The role of bacterial communication in activated sludge at low temperatures

Quorum sensing is widespread in the microbial world; however, the role of this population behavior at low temperatures (<15°C) remains poorly understood. Here, the effects of quorum sensing in wastewater treatment processes at low temperatures are revealed using both microcosm experiments and global surveys. Quorum-sensing bacteria act as pioneers to facilitate microorganism migration from the species pool to the carrier surface during biofilm colonization at 15°C. A high biofilm formation rate is accompanied by significant enrichment of quorum-sensing bacteria and upregulation of gene expression. By analyzing the global activated sludge microbiome data, we find that quorum-sensing bacteria exhibit a typical temperature-dependent distribution pattern. The performance of the process is strongly linked to the content of quorum-sensing bacteria. Our findings elucidate a potential response mechanism of the microbial community to environmental stress and provide implications for the enhancement of the wastewater biotreatment process at low temperatures.

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来源期刊
Cell Reports Physical Science
Cell Reports Physical Science Energy-Energy (all)
CiteScore
11.40
自引率
2.20%
发文量
388
审稿时长
62 days
期刊介绍: Cell Reports Physical Science, a premium open-access journal from Cell Press, features high-quality, cutting-edge research spanning the physical sciences. It serves as an open forum fostering collaboration among physical scientists while championing open science principles. Published works must signify significant advancements in fundamental insight or technological applications within fields such as chemistry, physics, materials science, energy science, engineering, and related interdisciplinary studies. In addition to longer articles, the journal considers impactful short-form reports and short reviews covering recent literature in emerging fields. Continually adapting to the evolving open science landscape, the journal reviews its policies to align with community consensus and best practices.
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