期刊
BIORESOURCE TECHNOLOGY
卷 255, 期 -, 页码 302-307出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.biortech.2018.01.125
关键词
Metagenomics; Metatranscriptomics; Electrochemically active microbes; Bioelectrochemical systems; Microbial fuel cells
资金
- JSPS KAKENHI [23370008, 15H01753, 17K19435]
In bioelectrochemical systems (BESs), electrons are transferred between electrochemically active microbes (EAMs) and conductive materials, such as electrodes, via extracellular electron transfer (EET) pathways, and electrons thus transferred stimulate intracellular catabolic reactions. Catabolic and EET pathways have extensively been studied for several model EAMs, such as Shewanella oneidensis MR-1 and Geobacter sulfurreducens PCA, whereas it is also important to understand the ecophysiology of EAMs in naturally occurring microbiomes, such as those in anode biofilms in microbial fuel cells treating wastewater. Recent studies have exploited metagenomics and metatranscriptomics (meta-omics) approaches to characterize EAMs in BES-associated microbiomes. Here we review recent BES studies that used meta-omics approaches and show that these studies have discovered unexpected features of EAMs and deepened our understanding of functions and behaviors of microbes in BESs. It is desired that more studies will employ meta-omics approaches for advancing our knowledge on microbes in BESs.
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