Comparison of arsenate reduction and release by three As(V)-reducing bacteria isolated from arsenic-contaminated soil of Inner Mongolia, China

doi:10.1016/j.chemosphere.2016.06.102

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	Comparison of arsenate reduction and release by three As(V)-reducing bacteria isolated from arsenic-contaminated soil of Inner Mongolia, China
	Yin, Naiyi; Zhang, Zhennan; Cai, Xiaolin; Cui, Yanshan; Li, Zejiao; Du, Huili
刊名	CHEMOSPHERE
	2016-10
卷号	161 页码:200-207
关键词	As(v)-reducing Bacteria Arsenate Reduction As releAse Goethite
DOI	10.1016/j.chemosphere.2016.06.102
英文摘要	Arsenic (As) contamination has become a worldwide environmental problem: arsenite (As(III)) especially has posed a major threat to human health. Here, we report the first three isolates of anaerobic As(V)reducing bacterial strains (strains JQ DJ-3 and DJ-4) from a soil sample containing 48.7% of total As in the form of As(III) collected in Chifeng, Inner Mongolia, China. Strains JQ, DJ-3 and DJ-4 were phylogenetically closely related to Bacillus, Desuffitobacterium and Exiguobacterium, respectively. Among these strains, JQ and DJ-3 have the arsC gene, DJ-4 possesses the arrA gene. The three strains could all resist and reduce high concentrations of As(V) under anoxic conditions. The order of resistance to As(V) was DJ 3 > JQ > DJ-4. Strain DJ-3 not only possesses the strongest resistance to As(V) but could also reduce 53% of the As(V) to As(III) in the treatment of 60 mM As(V) in 5 d. All three strains could release As from goethite; strain DJ-4 has the highest ability to promote the release of As (90.5%) from goethite. These results suggested that strains JQ DJ-3 and DJ-4 may play an important role in the mobilization and transformation of As in soil. (C) 2016 Elsevier Ltd. All rights reserved.
内容类型	期刊论文
源URL	[http://ir.rcees.ac.cn/handle/311016/36246]
专题	生态环境研究中心_土壤环境科学实验室
推荐引用方式 GB/T 7714	Yin, Naiyi,Zhang, Zhennan,Cai, Xiaolin,et al. Comparison of arsenate reduction and release by three As(V)-reducing bacteria isolated from arsenic-contaminated soil of Inner Mongolia, China[J]. CHEMOSPHERE,2016,161:200-207.
APA	Yin, Naiyi,Zhang, Zhennan,Cai, Xiaolin,Cui, Yanshan,Li, Zejiao,&Du, Huili.(2016).Comparison of arsenate reduction and release by three As(V)-reducing bacteria isolated from arsenic-contaminated soil of Inner Mongolia, China.CHEMOSPHERE,161,200-207.
MLA	Yin, Naiyi,et al."Comparison of arsenate reduction and release by three As(V)-reducing bacteria isolated from arsenic-contaminated soil of Inner Mongolia, China".CHEMOSPHERE 161(2016):200-207.