Sulfate-reducing bacterial activity and pyrite formation in sediments from Qinghai Lake in China
The foul odor ofurban rivers is often attributed to the activity of sulfate-reducing bacteria (SRB),i.e. bacterial production of H2S fixed with iron ions into FeS or pyrite (FeS2) in river sediments. This process has been examined at the estuaries of urban rivers and in cultivation of SRB, and a close relationship between the activity of SRB and the presence of pyrite was confirmed. Our previous studies in Japan and at Qinghai Lake in China revealed similar findings. Three kinds of SRB, Desulfovibrio sp., an uncultured bacterium, and Desulfomicrobium apsheronum, were isolated from Qinghai Lake sediments, as was pyrite. This is the first report to describe the environmental bacteria of Qinghai Lake and to examine the relationship between bacterial activity and pyrite in its sediments.
K.Sugimori M.Matsuo A.Kuno Q.Wang G.J.Chen M.Horie
Department of Biology, Toho University School of Medicine, Tokyo, Japan Graduate School of Arts and Sciences, The University of Tokyo, Tokyo, Japan Key Laboratory of Gas Geochemistry, Institute of Geology and Geophysics,Chinese Academy of Sciences, National Institute of Advanced Industrial Science and Technology, Osaka, Japan
国际会议
第十二届水-岩相互作用国际研讨会(P0roceedings of the 12th International Symposium on Water-Rock Interaction)
昆明
英文
1283-1286
2007-07-31（万方平台首次上网日期，不代表论文的发表时间）