Characterization of endolithic culturable microbial communities in carbonate rocks from a typical karst canyon in Guizhou (China)

• Autorzy: Tang Y. , Cheng J.-Z. , Lian B.
• Języki publikacji: EN

Abstrakty

EN

The endolithic environment is a ubiquitous habitat for microorganisms and a critical interface between biology and geology. In this study, a culture-based method and the phylogenetic analysis based on 16S rRNA and internal transcribed spacer (ITS) sequences were used to investigate the diversity of endolithic bacteria and fungi in two main types of carbonate rocks (namely dolomite and limestone) from Nanjiang Canyon in Guizhou karst area, China. The results of bacterial diversity indicated that all bacteria isolated from dolomite and limestone rocks were divided into 4 bacterial groups, including Proteobacteria, Actinobacteria, Firmicutes and Bacteroidetes. For these two kinds of rocks, Proteobacteria was the first dominant group, and Gammaproteobacteria occupied the greatest proportion which might be closely related to Pseudomonas in phylogeny to be the most dominant genera after isolation. Actinobacteria and Bacillus bacteria were also widespread in these two kinds of rock environments. There were only 9 and 8 strains of fungi isolated from dolomite and limestone respectively, which all belonged to Ascomycota. To the best of our knowledge, this is the first report on diversity of endolithic culturable bacteria and fungi in carbonate rocks in Guizhou karst region. These microorganisms may play an important and unprecedented role in the carbonate rock weathering during the long history of geological evolution.

• Wydawca: -
• Czasopismo: Polish Journal of Microbiology
• Rocznik: 2016
• Tom: 65
• Numer: 4
• Opis fizyczny: p.413-423,fig.,ref.

Twórcy

autor

Tang Y.

• State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang, PR China

autor

Cheng J.-Z.

• State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang, PR China

autor

Lian B.

• Jiangsu Key Laboratory for Microbes and Functional Genomics, Jiangsu Engineering and Technology Research Center for Microbiology, College of Life Science, Nanjing Normal University, Nanjing, PR China

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Identyfikatory

DOI

10.5604/17331331.1227667