期刊
TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA
卷 24, 期 10, 页码 3332-3342出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/S1003-6326(14)63474-9
关键词
acid mine drainage; microbial community; clone library; geochemical variables
资金
- National Natural Science Foundation of China [41171418]
To expand knowledge on microbial communities of various metal-rich levels of mine drainage environments in Anhui province, China, the archaeal and bacterial diversities were examined using a PCR-based cloning approach. Eight acid mine water samples were collected from five areas in Tongling. Phylogenetic analyses revealed that bacteria mainly fell into ten divisions, which were Betaproteobacteria, Gammaproteobacteria, Alphaproteobacteria, Deinococcus-Thermus, Nitrospira, Firmicutes, Actinobacteria, Deltaproteobacteria, Bacteroidetes, Chioroflexi. Archaea fell into three phylogenetic divisions, Thermoplasma, Ferroplasma and Thermogymnomonas. The unweighted pair group method with arithmetic mean (UPGMA) cluster analysis based on the microbial communities' compositions revealed that five samples shared similarity with the dominance of Meiothermus and Thermomonas. Two samples had the preponderant existence of Acidithiobacillus and Leptospirdlum. The remaining sample owned higher microbial communities' diversity with the Shannon-Weaver H up to 2.91. Canonical correlation analysis (CCA) suggested that microbial community structures had great association with pH and the concentration of Hg2+, Pb2+, Fe3+, SO42- in water.
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