Candidatus Desulforudis audaxviator

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

Overview

  • Desulforudis audaxviator is a Gram-positive, spore-forming, microaerophilic, motile, rod-shaped bacterium. It has been detected in at least 1 gut microbiome compilation study or metastudy. The DNA G+C content is 60.9%. Desulforudis audaxviator is likely to be transient and not a long-term gut coloniser. (Karnachuk2019; Chivian2008)



  • This organism has been recovered from 2.8 km below the surface of a gold mine, South Africa. Pathogenicity status unknown, or very unlikely to be pathogenic. Likely to be transient and not a long-term gut commensal.
    • QUIRKS
  • This organism contains the entire set of genes required for life in the absence of other organisms or light in one genome. High optimum growth temperature so unlikely to be a gut coloniser.
    • GENERAL CHARACTERISTICS (Karnachuk2019); (Chivian2008);
    Character Response
  • 🧂
  • Salt tolerance:
  • Grows optimally with 0.1% salt.
  • pH
  • Acidity tolerance:
  • tolerates pH 7.0; tolerates pH 9.5; Grows optimally at pH 8.0.
  • 🌡
  • Temperature tolerance:
  • grows at 45-60℃; Grows optimally at 55℃.
  • ⥅
  • Substrates assimilated or utilised:
  • ethanol; glucose; sucrose; butyrate; formate; fumarate; propionate; pyruvate; succinate; N2 fixed; H2 consumed; NH4+ consumed;
    • SPECIAL FEATURES (Chivian2008);
    Character Response
  • ✓
  • Metabolites produced:
  • H₂S;
  • ✗
  • Nitrate:
  • not reduced
  • ✗
  • Nitrite:
  • not reduced
  • ✓
  • Sulfate:
  • reduced
  • ✓
  • Thiosulfate:
  • reduced

    • Details

    GENERAL
    Lineage Physiology General Growth Tolerances Hydrol./digest./degr.
    Phylum:  Firmicutes Class:  Clostridia Order:  Eubacteriales Family:  Peptococcaceae Genus:  Desulforudis Gram stain:  + O2 Relation.:  microaerophilic Spore:  Endospore Motility:  Swimming Morphology:  Rod
    Health:  Unknown
    Source:  2.8 km below the surface of a gold mine, South Africa
    DNA G+C(%):  60.9
    Opt. T:  55℃
    High T(℃):  45-60(+)
    Opt. pH:  8.0
    pH 6.0-8.0:  7.0(+)
    pH >8:  9.5(+)
    		Gelatin:  neg
    SUBSTRATE ASSIMILATION & UTILISATION
    Monosaccharide util/assim Oligosaccharide util/assim Other carboh. util/assim Amino acid util/assim Organic acid util/assim
    Fructose:  neg Glucose:  + Sucrose:  + Cellulose:  neg Ethanol:  + Glycerol:  neg Propanol:  neg Cys:  neg Acetate:  neg Butyrate:  + Formate:  + Fumarate:  + Malate:  neg Propionate:  + Pyruvate:  + Succinate:  +
    METABOLITES - PRODUCTION & USE
    Fuel Usable Metabolites Metabolites Released Special Products Compounds Produced

    		H2S:  +

    References

    SPECIFIC REFERENCES FOR DESULFORUDIS AUDAXVIATOR
  • Karnachuk2019 - Domestication of previously uncultivated Candidatus Desulforudis audaxviator from a deep aquifer in Siberia sheds light on its physiology and evolution.
  • Chivian2008 - Environmental genomics reveals a single-species ecosystem deep within Earth.
  • ...............................
    • GUT MICROBIOME COMPILATIONS AND METASTUDIES FOR DESULFORUDIS AUDAXVIATOR
  • New2022 - Collective effects of human genomic variation on microbiome function.
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    • Added: March 18, 2022