論文

査読有り
2010年

Complete genome sequence and comparative analysis of Shewanella violacea, a psychrophilic and piezophilic bacterium from deep sea floor sediments

Molecular BioSystems
  • Eiji Aono
  • Tomoya Baba
  • Takeshi Ara
  • Tatsunari Nishi
  • Tomoko Nakamichi
  • Eiji Inamoto
  • Hiromi Toyonaga
  • Miki Hasegawa
  • Yuki Takai
  • Yoshiko Okumura
  • Miki Baba
  • Masaru Tomita
  • Chiaki Kato
  • Taku Oshima
  • Kaoru Nakasone
  • Hirotada Mori
  • 全て表示

6
7
開始ページ
1216
終了ページ
1226
記述言語
英語
掲載種別
研究論文(学術雑誌)
DOI
10.1039/c000396d
出版者・発行元
ROYAL SOC CHEMISTRY

Remineralization of organic matter in deep-sea sediments is important in oceanic biogeochemical cycles, and bacteria play a major role in this process. Shewanella violacea DSS12 is a psychrophilic and piezophilic gamma-proteobacterium that was isolated from the surface layer of deep sea sediment at a depth of 5110 m. Here, we report the complete genome sequence of S. violacea and comparative analysis with the genome of S. oneidensis MR-1, isolated from sediments of a freshwater lake. Unlike S. oneidensis, this deep-sea Shewanella possesses very few terminal reductases for anaerobic respiration and no c-type cytochromes or outer membrane proteins involved in respiratory Fe(III) reduction, which is characteristic of most Shewanella species. Instead, the S. violacea genome contains more terminal oxidases for aerobic respiration and a much greater number of putative secreted proteases and polysaccharases, in particular, for hydrolysis of collagen, cellulose and chitin, than are encoded in S. oneidensis. Transporters and assimilatory reductases for nitrate and nitrite, and nitric oxide-detoxifying mechanisms (flavohemoglobin and flavorubredoxin) are found in S. violacea. Comparative analysis of the S. violacea genome revealed the respiratory adaptation of this bacterium to aerobiosis, leading to predominantly aerobic oxidation of organic matter in surface sediments, as well as its ability to efficiently use diverse organic matter and to assimilate inorganic nitrogen as a survival strategy in the nutrient-poor deep-sea floor.

リンク情報
DOI
https://doi.org/10.1039/c000396d
Web of Science
https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=JSTA_CEL&SrcApp=J_Gate_JST&DestLinkType=FullRecord&KeyUT=WOS:000278861500011&DestApp=WOS_CPL
ID情報
  • DOI : 10.1039/c000396d
  • ISSN : 1742-206X
  • Web of Science ID : WOS:000278861500011

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