Megalodesulfovibrio gigas

(aka Desulfovibrio gigas)

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

Overview

  • Megalodesulfovibrio gigas, (aka Desulfovibrio gigas), is a Gram-negative, non-spore-forming, strictly anaerobic, motile, vibrio bacterium. It has been detected in at least 1 gut microbiome compilation study or metastudy. The DNA G+C content is 60.2%. Megalodesulfovibrio gigas is likely to be transient and not a long-term gut coloniser. (Legall1963)



  • This organism has been recovered from saltwater, sewage. 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. Likely to be transient and not a long-term gut commensal.
    • GENERAL CHARACTERISTICS (Legall1963);
    Character Response
  • 🧂
  • Salt tolerance:
  • tolerates 0% salt;
  • 🌡
  • Temperature tolerance:
  • Grows optimally at 30-36℃.
  • ⥅
  • Substrates assimilated or utilised:
  • formate; fumarate; lactate; malate; pyruvate; succinate; H2 consumed;
    • SPECIAL FEATURES (Legall1963);
    Character Response
  • ✓
  • Metabolites produced:
  • H₂S;
  • ✗
  • Nitrate:
  • not reduced
  • ✓
  • Sulfate:
  • reduced
  • ✓
  • Thiosulfate:
  • reduced

    • Details

    GENERAL
    Lineage Physiology General Growth Tolerances Hydrol./digest./degr.
    Phylum:  Proteobacteria Class:  Deltaproteobacteria Order:  Desulfovibrionales Family:  Desulfovibrionaceae Genus:  Megalodesulfovibrio Alt. name:  Desulfovibrio gigas Gram stain:  neg O2 Relation.:  strictly anaerobic Spore:  No spore Motility:  Swimming Morphology:  Vibrio
    Health:  Unknown
    Source:  saltwater, sewage
    DNA G+C(%):  60.2
    Opt. T:  30-36℃
    NaCl 0.5-2%:  0(+)
    SUBSTRATE ASSIMILATION & UTILISATION
    Monosaccharide util/assim Oligosaccharide util/assim Other carboh. util/assim Amino acid util/assim Organic acid util/assim
    Ethanol:  w Acetate:  neg Formate:  + Fumarate:  + Lactate:  + Malate:  + Pyruvate:  + Succinate:  +
    METABOLITES - PRODUCTION & USE
    Fuel Usable Metabolites Metabolites Released Special Products Compounds Produced

    		H2S:  +

    References

    SPECIFIC REFERENCES FOR MEGALODESULFOVIBRIO GIGAS
  • Waite2020 - Proposal to reclassify the proteobacterial classes Deltaproteobacteria and Oligoflexia, and the phylum Thermodesulfobacteria into four phyla reflecting major functional capabilities.
  • Legall1963 - A new species of Desulfovibrio.
  • ...............................
    • GUT MICROBIOME COMPILATIONS AND METASTUDIES FOR MEGALODESULFOVIBRIO GIGAS
  • New2022 - Collective effects of human genomic variation on microbiome function.
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    • Added: March 18, 2022