Cold-seep sediment harbors phylogenetically diverse uncultured bacteria
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Title
- Cold-seep sediment harbors phylogenetically diverse uncultured bacteria
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Author(s)
- Lee, SH; Oh, HR; Lee, JH; Kim, SJ; Cho, JC
- KIOST Author(s)
- Lee, Jung Hyun(이정현)
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Alternative Author(s)
- 이정현; 김상진
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Publication Year
- 2004-10
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Abstract
- A culture-independent molecular phylogenetic survey was carried out on the bacterial community in cold-seep sediment at Edison Seamount, south of Lihir Island, Papua New Guinea. Small-subunit rRNA genes were amplified directly from the sediment DNA by PCR and cloned. The majority of the cloned 16S rRNA gene sequences were most closely related to as-yet-uncultivated microorganisms found in deep-sea sediments, and were primarily affiliated with one of four groups: the gamma-, delta-, and epsilon-subdivisions of Proteobacteria, and Cytophaga-Flavobacterium-Bacteroides. We did not recover any sequences related to cyanobacteria, prochlorophytes, and alpha-Proteobacteria, which are known to occur in great abundance within the surface mixed layer of the Atlantic and Pacific Oceans. The majority of the cloned gamma- and epsilon-Proteobacterial sequences were closely related to chemoautotrophic sulfuroxidizing symbionts of marine benthic fauna, and the delta-Proteobacterial sequences to sulfate- and sulfur-reducing bacteria, indicating that they might play an important role in chemoautotrophic primary production and the sulfur cycle in the cold-seep area. These results demonstrate the high diversity of the bacterial community in the cold-seep sediment, and substantially expand knowledge of the extent of bacterial diversity in this formidable and unique habitat.
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ISSN
- 1017-7825
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URI
- https://sciwatch.kiost.ac.kr/handle/2020.kiost/5211
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Bibliographic Citation
- JOURNAL OF MICROBIOLOGY AND BIOTECHNOLOGY, v.14, no.5, pp.906 - 913, 2004
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Publisher
- KOREAN SOC MICROBIOLOGY & BIOTECHNOLOGY
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Subject
- SEA HYDROTHERMAL VENT; SULFUR-OXIDIZING BACTERIA; RIFTIA-PACHYPTILA JONES; RIBOSOMAL-RNA; MICROBIAL DIVERSITY; SPREADING CENTERS; SEQUENCE-ANALYSIS; SUBDUCTION ZONE; GUAYMAS BASIN; TUBE WORM
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Keywords
- cold-seep; bacteria; diversity
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Type
- Article
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Language
- English
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Document Type
- Article
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