BIODIVERSITY OF AIRBORNE BACTERIA AT THE GREAT WALL STATION, ANTARCTICA

doi:10.13679/j.jdyj.2014.2.186

ADVANCES IN POLAR SCIENCE ›› 2014, Vol. 26 ›› Issue (2): 186-192.DOI: 10.13679/j.jdyj.2014.2.186

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BIODIVERSITY OF AIRBORNE BACTERIA AT THE GREAT WALL STATION, ANTARCTICA

Xia Xiaomin^1,2, Wang Jianjun³, Chen liqi³, Yan Jinpei³, Zhang Rui^1,2

¹State Key Laboratory of Marine Environmental Science, Xiamen University, Xiamen 361005, China;
²Institute of Marine Microbes and Ecospheres, Xiamen University, Xiamen 361005, China;
³Key Laboratory of Global Change and Marine-Atmospheric Chemistry, State Oceanic Administration, Xiamen 361005, China

Received:2013-02-04 Revised:2013-04-17 Online:2014-06-30 Published:2014-06-30

Abstract

Abstract: Bacteria are an important component of the aerosol, which is closely related with the human beings. This study analyzed the community structure of air-borne bacteria at The Great Wall Station, Antarctica, based on 16S rRNA gene clone library analysis. High diversity of air-borne bacteria was observed in the aerosol samples collected at The Great Wall Station. Ninety three sequences from the clone library can be classified into 53 OTUs (operation taxonomic unit) based on 97% sequence similarity. Shannon and Simpson index of the clone library are 3.58 and 0.04, respectively. Phylogenetic analysis showed the sequences can be affiliated into seven phylum: Actinobacteria、Cyanobacteria/Chloroplast、Bacteroidetes、Firmicutes、Planctomycetes、Proteobacteria and Verrucomicrobia. Proteobacterial sequences accounted for 65.6% of the clone library. There were same amount of sequences (30.1%) seemed to be derived from marine and terrestrial environments, suggesting a strong atmosphere exchange of the land and sea near The Great Wall Station. In addition, there were 15 sequences related with human activities, which indicated that human activities had already affected the airborne microbial community structure of The Great Wall Station.

Key words: Antarctica aerosol, bacteria community structure, 16S rRNA gene clone library

Xia Xiaomin, Wang Jianjun, Chen liqi, Yan Jinpei, Zhang Rui. BIODIVERSITY OF AIRBORNE BACTERIA AT THE GREAT WALL STATION, ANTARCTICA[J]. ADVANCES IN POLAR SCIENCE, 2014, 26(2): 186-192.

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BIODIVERSITY OF AIRBORNE BACTERIA AT THE GREAT WALL STATION, ANTARCTICA

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