Bacterial diversity in biofilms formed on condenser tube surfaces in a nuclear power plant
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Title
- Bacterial diversity in biofilms formed on condenser tube surfaces in a nuclear power plant
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Author(s)
- Choi, Dong H.; Noh, Jae H.; Yu, Ok H.; Kang, Yeon S.
- KIOST Author(s)
- Choi, Dong Han(최동한); Yu, Ok Hwan(유옥환)
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Alternative Author(s)
- 최동한; 노재훈; 유옥환
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Publication Year
- 2010
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Abstract
- To elucidate the bacterial diversity in biofilms formed on a condenser tube from a nuclear power plant, 16S rRNA gene sequences were examined using a PCR-cloning-sequencing approach. Twelve operational taxonomic units were retrieved in the clone library, and the estimated species richness was low (13.2). Most of the clones (94.7%) were affiliated with alpha-Proteobacteria; Planctomycetes and gamma-Proteobacteria were much rarer. Interestingly, except for one clone belonging to Pseudoalteromonas, most of the sequences displayed sequence similarities < 97% of those of the closest type strains. Based on 16S rRNA phylogenetic analysis, most bacteria were assigned to novel taxa above the species level. The low species richness and unusual bacterial composition may be attributable to selective pressure from chlorine in the cooling water. To prevent or control bacterial biofilms in cooling circuits, additional studies of the physiology and ecology of these species will be essential.
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ISSN
- 0892-7014
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URI
- https://sciwatch.kiost.ac.kr/handle/2020.kiost/40459
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DOI
- 10.1080/08927014.2010.533267
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Bibliographic Citation
- BIOFOULING, v.26, no.8, pp.953 - 959, 2010
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Publisher
- TAYLOR & FRANCIS LTD
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Subject
- SP NOV.; MARINE BACTERIUM; SEQUENCE DATA; GEN. NOV.; WATERS; ENVIRONMENTS; EFFLUENTS; LIBRARIES; ARB
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Keywords
- bacterial diversity; biofilm; condenser tube; chlorination; 16S rRNA
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Type
- Article
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Language
- English
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Document Type
- Article
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