Archives of Microbiology

, Volume 132, Issue 1, pp 47–50

Methanococcus thermolithotrophicus, a novel thermophilic lithotrophic methanogen

  • Harald Huber
  • Michael Thomm
  • Helmut König
  • Gesa Thies
  • Karl O. Stetter
Original Papers

Abstract

An autotrophic thermophilic motile coccoid methanogen was isolated from geothermally heated sea sediments close to Naples, Italy. Growth occurs on H2/CO2 and on formate between 30 and 70°C with an optimum at 65°C. The optimal doubling time is only 55 min. The NaCl-concentration ranges from 1.3% to 8.3% with an optimum around 4%. By its G+C-content of 31.3 mol%, its subunit envelope, and by DNA-RNA hybridization the new isolate is clearly defined to be a member of the genusMethanococcus. We name itMethanococcus thermolithotrophicus.

Key words

Methanogens Archaebacteria Autotrophic Thermophilic 

Abbreviations

G+C

Guanine + Cytosine

SDS

Sodium dodecylsulfate (Sodium lauryl sulfate)

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Copyright information

© Springer-Verlag 1982

Authors and Affiliations

  • Harald Huber
    • 1
  • Michael Thomm
    • 1
  • Helmut König
    • 1
  • Gesa Thies
    • 2
  • Karl O. Stetter
    • 1
  1. 1.Lehrstuhl für MikrobiologieUniversität RegensburgRegensburgGermany
  2. 2.Lehrstuhl für ZoologieUniversität RegensburgRegensburgGermany

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