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Complete genome sequence of Methanospirillum hungatei type strain JF1

  • Author(s): Gunsalus, RP
  • Cook, LE
  • Crable, B
  • Rohlin, L
  • McDonald, E
  • Mouttaki, H
  • Sieber, JR
  • Poweleit, N
  • Zhou, H
  • Lapidus, AL
  • Daligault, HE
  • Land, M
  • Gilna, P
  • Ivanova, N
  • Kyrpides, N
  • Culley, DE
  • McInerney, MJ
  • et al.

Published Web Location

http://doi.org/10.1186/s40793-015-0124-8
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Abstract

© 2016 Gunsalus et al. Methanospirillum hungatei strain JF1 (DSM 864) is a methane-producing archaeon and is the type species of the genus Methanospirillum, which belongs to the family Methanospirillaceae within the order Methanomicrobiales. Its genome was selected for sequencing due to its ability to utilize hydrogen and carbon dioxide and/or formate as a sole source of energy. Ecologically, M. hungatei functions as the hydrogen- and/or formate-using partner with many species of syntrophic bacteria. Its morphology is distinct from other methanogens with the ability to form long chains of cells (up to 100 μm in length), which are enclosed within a sheath-like structure, and terminal cells with polar flagella. The genome of M. hungatei strain JF1 is the first completely sequenced genome of the family Methanospirillaceae, and it has a circular genome of 3,544,738bp containing 3,239 protein coding and 68 RNA genes. The large genome of M. hungatei JF1 suggests the presence of unrecognized biochemical/physiological properties that likely extend to the other Methanospirillaceae and include the ability to form the unusual sheath-like structure and to successfully interact with syntrophic bacteria.

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