Archives of Microbiology

, Volume 142, Issue 3, pp 218–222

Isolation and characterization of a new thermophilic and autotrophic methane producing bacterium:Methanobacterium thermoaggregans spec. nov.

  • Karl-Heinz Blotevogel
  • Ulrich Fischer
Original Papers

DOI: 10.1007/BF00693393

Cite this article as:
Blotevogel, KH. & Fischer, U. Arch. Microbiol. (1985) 142: 218. doi:10.1007/BF00693393


Methanobacterium thermoaggregans is a new thermophilic autotrophic rod-shaped methane producing bacterium. The organism likes to form aggregates during growth and utilizes only H2 and CO2 as substrates. Growth optimum is at 65°C with a doubling time of 3.5 h. Optimal growth occurs at pH-values between 7 and 7.5. The addition of yeast extract to the mineral salt medium stimulates growth. The DNA base composition is 42 mol% G+C. The organism was isolated from mud taken from a cattle pasture. Because of its optimal growth temperature and its tendency to form aggregates the nameMethanobacterium thermoaggregans is suggested.

Key words

Thermophilic Methanogenesis Methanobacterium thermoaggregans 




Copyright information

© Springer-Verlag 1985

Authors and Affiliations

  • Karl-Heinz Blotevogel
    • 1
  • Ulrich Fischer
    • 2
  1. 1.Fachbereich Biologie, AG MikrobiologieUniversität OldenburgOldenburgFederal Republic of Germany
  2. 2.Fachbereich Biologie, AG GeomikrobiologieUniversität OldenburgOldenburgFederal Republic of Germany

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