罗艳;谢作明;周义芳;王焰新;甘义群;

• 1:中国地质大学(武汉)环境学院

摘要(Abstract)：

为研究江汉平原高砷地下水系统中细菌多样性和种群结构,以2011年11月采自江汉平原仙桃市沙湖镇高砷含水层沉积物为研究对象,沉积物采自同一50m钻井,分别选取埋深9.9～10.1m和15.7～16.0m样品。提取沉积物中总DNA,采用16SrDNA克隆文库方法,分析高砷含水层沉积物中土壤细菌的多样性。结果发现,伯克氏菌目(Burkholderiales)、假单胞杆菌目(Pseudomonadales)和肠杆菌目(Enterobacteriales)构成了高砷系统中抗砷的优势菌群。结果表明,高砷含水层中生活有大量微生物,这些微生物在砷的地球化学循环中扮演着重要角色。

关键词(KeyWords)： 砷;微生物;细菌多样性

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金(41172219);国家自然科学基金国际重大合作项目(41120124003);; 863计划项目(2012AA062602)

作者(Author): 罗艳;谢作明;周义芳;王焰新;甘义群;

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