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Bacterial Lifestyle in a Deep-sea Hydrothermal Vent Chimney Revealed by the Genome Sequence of the Thermophilic Bacterium Deferribacter desulfuricans SSM1

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Title: Bacterial Lifestyle in a Deep-sea Hydrothermal Vent Chimney Revealed by the Genome Sequence of the Thermophilic Bacterium Deferribacter desulfuricans SSM1
Authors: Takaki, Yoshihiro Browse this author
Shimamura, Shigeru Browse this author
Nakagawa, Satoshi Browse this author →KAKEN DB
Fukuhara, Yasuo Browse this author
Horikawa, Hiroshi Browse this author
Ankai, Akiho Browse this author
Harada, Takeshi Browse this author
Hosoyama, Akira Browse this author
Oguchi, Akio Browse this author
Fukui, Shigehiro Browse this author
Fujita, Nobuyuki Browse this author
Takami, Hideto Browse this author
Takai, Ken Browse this author
Keywords: Deferribacter desulfuricans
whole genome sequence
hydrothermal vent
chemolithotroph
Issue Date: Jun-2010
Publisher: Oxford University Press
Journal Title: DNA Research
Volume: 17
Issue: 3
Start Page: 123
End Page: 137
Publisher DOI: 10.1093/dnares/dsq005
Abstract: The complete genome sequence of the thermophilic sulphur-reducing bacterium, Deferribacter desulfuricans SMM1, isolated from a hydrothermal vent chimney has been determined. The genome comprises a single circular chromosome of 2 234 389 bp and a megaplasmid of 308 544 bp. Many genes encoded in the genome are most similar to the genes of sulphur- or sulphate-reducing bacterial species within Deltaproteobacteria. The reconstructed central metabolisms showed a heterotrophic lifestyle primarily driven by C1 to C3 organics, e.g. formate, acetate, and pyruvate, and also suggested that the inability of autotrophy via a reductive tricarboxylic acid cycle may be due to the lack of ATP-dependent citrate lyase. In addition, the genome encodes numerous genes for chemoreceptors, chemotaxis-like systems, and signal transduction machineries. These signalling networks may be linked to this bacterium's versatile energy metabolisms and may provide ecophysiological advantages for D. desulfuricans SSM1 thriving in the physically and chemically fluctuating environments near hydrothermal vents. This is the first genome sequence from the phylum Deferribacteres.
Type: article
URI: http://hdl.handle.net/2115/46998
Appears in Collections:水産科学院・水産科学研究院 (Graduate School of Fisheries Sciences / Faculty of Fisheries Sciences) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 中川 聡

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