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Metagenomic Evidence for Cobamide Producers Driving Prokaryotic Co-occurrence Associations and Potential Function in Wastewater Treatment Plants

文献类型： 外文期刊

作者： Wang, Jichen 1 ; Shi, Kaili 3 ; Jing, Zhongwang 1 ; Ge, Yuan 1 ;

作者机构： 1.Chinese Acad Sci, Res Ctr Ecoenvironm Sci, State Key Lab Urban & Reg Ecol, Beijing 100085, Peoples R China

2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China

3.Beijing Acad Agr & Forestry Sci, Intelligent Equipment Technol Res Ctr, Beijing 100097, Peoples R China

关键词： cobamides; metagenomic; sludge; microbialnetwork; microbial function

期刊名称：ENVIRONMENTAL SCIENCE & TECHNOLOGY （ 影响因子：11.4； 五年影响因子：12.0 ）

ISSN： 0013-936X

年卷期： 2023 年 57 卷 29 期

页码：

收录情况： SCI

摘要： Cobamides are commonly shared betweenmicrobes but lessknowledge is available about their producers in wastewater treatmentplants. This study identified cobamide prokaryotic producers and revealedtheir roles in driving microbial co-occurrence network associationsand potential function. Cobamides are required by most organisms but are onlyproducedby specific prokaryotic taxa. These commonly shared cofactors playsignificant roles in shaping the microbial community and ecosystemfunction. Wastewater treatment plants (WWTPs) are the world'smost common biotechnological systems; knowledge about sharing of cobamidesamong microorganisms is predicted to be important to decipher thecomplex microbial relationships in these systems. Herein, we exploredprokaryotic potential cobamide producers in global WWTP systems basedon metagenomic analyses. A set of 8253 metagenome-assembled genomes(MAGs) were recovered and 1276 (15.5%) of them were identified ascobamide producers, which could potentially be used for the practicalbiological manipulation of WWTP systems. Moreover, 8090 of the totalrecovered MAGs (98.0%) contained at least one enzyme family dependenton cobamides, indicating the sharing of cobamides among microbialmembers in WWTP systems. Importantly, our results showed that therelative abundance and number of cobamide producers improved the complexityof microbial co-occurrence networks and most nitrogen, sulfur, andphosphorus cycling gene abundances, indicating the significance ofcobamides in microbial ecology and their potential function in WWTPsystems. These findings enhance the knowledge of cobamide producersand their functions in WWTP systems, which has important implicationsfor improving the efficiency of microbial wastewater treatment processes.

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