Diversity and Characterization of Potential H2-Dependent Fe(III)-Reducing Bacteria in Paddy Soils

	Diversity and Characterization of Potential H2-Dependent Fe(III)-Reducing Bacteria in Paddy Soils
	LI Hui-Juan ; PENG Jing-Jing ; LI Hong-Bo
刊名	Pedosphere
	2012
卷号	22 期号:5 页码:673-680
英文摘要	Microbial ferric iron reduction, with organic carbon or hydrogen as the electron donor, is one of the most important biogeochemical processes in anoxic paddy soils; however, the diversity and community structure of hydrogen-dependent dissimilatory iron-reducers remain unknown. Potential H2-dependent Fe(III)-reducing bacteria in paddy soils were explored using enrichment cultures with ferrihydrite or goethite as the electron acceptor and hydrogen as the electron donor. Terminal restriction fragment length polymorphism (T-RFLP) analysis and cloning/sequencing were conducted to reveal bacterial community structure. Results showed that Geobacter and Clostridium were the dominant bacteria in the enrichment cultures. Fe(III) oxide mineral phases showed a strong e®ect on the community structure; Geobacter and Clostridium were dominant in the ferrihydrite treatment, while Clostridium spp. were dominant in the goethite treatment. These suggested that H2-dependent Fe(III)-reducing bacteria might be widely distributed in paddy soils and that besides Geobacter, Clostridium spp. might also be an important group of H2-dependent Fe(III)-reducing microorganisms.
收录类别	SCI
公开日期	2013-08-28
内容类型	期刊论文
源URL	[http://124.16.167.195/handle/335003/1162]
专题	城市环境研究所_城市土壤与生物地球化学研究组_期刊论文
推荐引用方式 GB/T 7714	LI Hui-Juan,PENG Jing-Jing,LI Hong-Bo. Diversity and Characterization of Potential H2-Dependent Fe(III)-Reducing Bacteria in Paddy Soils[J]. Pedosphere,2012,22(5):673-680.
APA	LI Hui-Juan,PENG Jing-Jing,&LI Hong-Bo.(2012).Diversity and Characterization of Potential H2-Dependent Fe(III)-Reducing Bacteria in Paddy Soils.Pedosphere,22(5),673-680.
MLA	LI Hui-Juan,et al."Diversity and Characterization of Potential H2-Dependent Fe(III)-Reducing Bacteria in Paddy Soils".Pedosphere 22.5(2012):673-680.