mcrA sequencing reveals the role of basophilic methanogens in a cathodic methanogenic community

CORC > 生态环境研究中心 > 中国科学院生态环境研究中心 > 中国科学院环境生物技术重点实验室

	mcrA sequencing reveals the role of basophilic methanogens in a cathodic methanogenic community
	Wang, Aijie; Deng, Ye; Cai, Weiwei; Liu, Wenzong; Zhang, Zhaojing; Feng, Kai; Ren, Ge; Pu, Chuanliang; Sun, Haishu; Li, Jiaqi
刊名	WATER RESEARCH
	2018-06-01
卷号	136 页码:192-199
关键词	mcrA Methanogenic community pH-gradient Bioelectrochemical Cathode
ISSN号	0043-1354
文献子类	Article
英文摘要	Cathodic methanogenesis is a promising method for accelerating and stabilising bioenergy recovery in anaerobic processes. The change in composition of microbial (especially methanogenic) communities in response to an applied potential-and especially the associated pH gradient-is critical for achieving this goal, but is not well understood in cathodic biofilms. We found here that the pH-polarised region in the 2 mm surrounding the cathode ranged from 6.9 to 10.1, as determined using a pH microsensor; this substantially affected methane production rate as well as microbial community structure. Miseq sequencing data of a highly conserved region of the mcrA gene revealed a dramatic variation in alpha diversity of methanogens concentrated in electrode biofilms under the applied potential, and confirmed that the dominant microbes at the cathode were hydrogenotrophic methanogens (mostly basophilic Methanobacterium alcaliphilum). These results indicate that regional pH variation in the microenvironment surrounding the electrode is an ecological niche enriched with Methanobacterium. (C) 2018 Elsevier Ltd. All rights reserved.
内容类型	期刊论文
源URL	[http://ir.rcees.ac.cn/handle/311016/41276]
专题	生态环境研究中心_中国科学院环境生物技术重点实验室
推荐引用方式 GB/T 7714	Wang, Aijie,Deng, Ye,Cai, Weiwei,et al. mcrA sequencing reveals the role of basophilic methanogens in a cathodic methanogenic community[J]. WATER RESEARCH,2018,136:192-199.
APA	Wang, Aijie.,Deng, Ye.,Cai, Weiwei.,Liu, Wenzong.,Zhang, Zhaojing.,...&Li, Jiaqi.(2018).mcrA sequencing reveals the role of basophilic methanogens in a cathodic methanogenic community.WATER RESEARCH,136,192-199.
MLA	Wang, Aijie,et al."mcrA sequencing reveals the role of basophilic methanogens in a cathodic methanogenic community".WATER RESEARCH 136(2018):192-199.