Methanobrevibacter ruminantium

(aka Methanobacterium ruminantium)

Archaea
General | Carbohydrate O/F | Substrate utilisation | Enzymes | Metabolites | Antibiotics

Overview

  • Methanobrevibacter ruminantium, (aka Methanobacterium ruminantium), is a Gram-positive, non-spore-forming, strictly anaerobic, non-motile, rod-shaped bacterium. It has been detected in at least 2 gut microbiome compilation studies or metastudies. Methanobrevibacter ruminantium is probably a rare gut coloniser. (Balch1979; Smith1958)



  • This organism has been recovered from rumen contents. The risk classification (www.baua.de) for this organism is 1, i.e., low risk of infection and spread. Pathogenicity status unknown, or very unlikely to be pathogenic. A possible gut commensal.
    • QUIRKS
  • Uses H2 and formate to produce methane. Widely distributed in the rumen of various animals.
    • GENERAL CHARACTERISTICS (Balch1979); (Smith1958);
    Character Response
  • pH
  • Acidity tolerance:
  • doesn't tolerate pH 5.9; doesn't tolerate pH 8.1; Grows optimally at pH 6.5-7.7.
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  • Temperature tolerance:
  • doesn't grow at 33℃; doesn't grow at 45℃; Grows optimally at 39℃.
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  • Substrates assimilated or utilised:
  • formate;
    • SPECIAL FEATURES (Smith1958);
    Character Response

    Details

    GENERAL
    Lineage Physiology General Growth Tolerances Hydrol./digest./degr.
    Phylum:  Euryarchaeota Class:  Methanobacteria Order:  Methanobacteriales Family:  Methanobacteriaceae Genus:  Methanobrevibacter Alt. name:  Methanobacterium ruminantium Gram stain:  + O2 Relation.:  strictly anaerobic Spore:  No spore Motility:  Sessile Morphology:  Rod
    Health:  Unknown
    Source:  rumen contents
    Opt. T:  39℃
    Mid T(℃):  33(neg)
    High T(℃):  45(neg)
    Opt. pH:  6.5-7.7
    pH 4.2-5.9:  5.9(neg)
    pH >8:  8.1(neg)
    SUBSTRATE ASSIMILATION & UTILISATION
    Monosaccharide util/assim Oligosaccharide util/assim Other carboh. util/assim Amino acid util/assim Organic acid util/assim
    Formate:  +

    References

    SPECIFIC REFERENCES FOR METHANOBREVIBACTER RUMINANTIUM
  • Balch1979 - Methanogens: reevaluation of a unique biological group.
  • Smith1958 - Isolation and characterization of Methanobacterium ruminantium n. sp.
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    • GUT MICROBIOME COMPILATIONS AND METASTUDIES FOR METHANOBREVIBACTER RUMINANTIUM
  • Lagier2016 - Culture of previously uncultured members of the human gut microbiota by culturomics.
  • Zeller2014 - Potential of fecal microbiota for early-stage detection of colorectal cancer
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    • Added: January 14, 2022