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Archives of Microbiology

, Volume 169, Issue 4, pp 364–368 | Cite as

Phylogenetic position of an obligately chemoautotrophic, marine hydrogen-oxidizing bacterium, Hydrogenovibrio marinus, on the basis of 16S rRNA gene sequences and two form I RuBisCO gene sequences

  • H. Nishihara
  • Toshiaki Yaguchi
  • Seon Yong Chung
  • Ken-ichiro Suzuki
  • M. Yanagi
  • K. Yamasato
  • T. Kodama
  • Y. Igarashi
Short communication

Abstract

Two form ribulose-1,5-bisphosphate carboxylase/oxygenase (RuBisCO) genes from the obligately autotrophic, marine hydrogen oxidizer Hydrogenovibrio marinus were sequenced. The deduced amino acid sequences of both RuBisCOs revealed that they are similar to those of sulfur oxidizers (Thiobacillus) and a purple sulfur bacterium (Chromatium vinosum). According to the 16S rRNA gene sequences, H. marinus is also affiliated with these microorganisms, members of Thiomicrospira being the closest relatives. Sequence similarities of the 16S rRNA genes and of the RuBisCO genes among these γ-Proteobacteria suggest a common autotrophic ancestry. An ancestor of purple sulfur bacteria might be a common root of H. marinus and related sulfur oxidizers.

Key wordsHydrogenovibrio marinus Hydrogen-oxidizing bacterium Marine bacteria Obligate chemolithoautotroph Form I RuBisCO sequences 16S rRNA gene sequence Phylogeny 

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Copyright information

© Springer-Verlag Berlin Heidelberg 1998

Authors and Affiliations

  • H. Nishihara
    • 1
  • Toshiaki Yaguchi
    • 1
  • Seon Yong Chung
    • 1
  • Ken-ichiro Suzuki
    • 2
  • M. Yanagi
    • 3
  • K. Yamasato
    • 3
  • T. Kodama
    • 1
  • Y. Igarashi
    • 1
  1. 1.Department of Biotechnology, University of Tokyo, Bunkyo-ku, Tokyo 113, Japan e-mail: aigara@hongo.ecc.u-tokyo.ac.jp Tel. +81-3-3812-2111 (ext. 5142); Fax +81-3-5684-5196JP
  2. 2.Japan Collection of Microorganisms (JCM), RIKEN, Wako-shi, Saitama 351-01, JapanJP
  3. 3.Institute of Molecular and Cellular Biosciences, University of Tokyo, Bunkyo-ku, Tokyo 113, JapanJP

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