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Succession of bacterial community structure during the early stage of biofilm development in the Antarctic marine environment

Cited 3 time in scopus
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Title
Succession of bacterial community structure during the early stage of biofilm development in the Antarctic marine environment
Other Titles
남극 해양에서 생물막 생성 초기 단계의 세균 군집 구조 변화
Authors
Cho, Kyeung Hee
Hwang, Kyuin
Lee, Yung Mi
Lee, Hong Kum
Hong, Soon Gyu
Kim, Mincheol
Kim, Eun Hye
Keywords
Antarctica; Bacteroidetes; Biofilm succession; Pseudoalteromonas; bacterial community; pyrosequencing
Issue Date
2016
Citation
Cho, Kyeung Hee, et al. 2016. "Succession of bacterial community structure during the early stage of biofilm development in the Antarctic marine environment". Journal of microbiology, 52(1): 49-58.
Abstract
Compared to planktonic bacterial populations, biofilms have distinct bacterial community structures and play important ecological roles in various aquatic environments. Despite their ecological importance in nature, bacterial community structure and its succession during biofilm development in the Antarctic marine environment have not been elucidated. In this study, the succession of bacterial community, particularly during the early stage of biofilm development, in the Antarctic marine environment was investigated by pyrosequencing of the 16S rRNA gene. Overall phyla distribution in biofilms differed considerably from surrounding seawater. Relative abundance of Gammaproteobacteria and Bacteroidetes which accounted for 78.9?88.3% of bacterial community changed drastically during biofilm succession. Gammaproteobacteria became more abundant with proceeding succession (75.7% on day 4) and decreased to 46.1% on day 7. The relative abundance of Bacteroidetes showed opposite trend to Gammaproteobacteria, decreasing from the early days to the intermediate days and becoming more abundant in the later days. There were striking differences in the composition of major OTUs (>1%) among samples during the early stages of biofilm formation. Gammaproteobacterial species increased until day 4, while members of Bacteroidetes, the most dominant group on day 1, decreased until day 4 and then increased again. Interestingly, Pseudoalteromonas prydzensis was predominant, accounting for up to 67.4% of the biofilm bacterial community indicating its important roles in the biofilm development.
URI
http://repository.kopri.re.kr/handle/201206/7448
DOI
http://dx.doi.org/10.7845/kjm.2016.6005
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