Geodermatophilus obscurus

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

Overview

  • Geodermatophilus obscurus is a Gram-positive, exosporous, aerobic, motile, filamentous bacterium. It has been detected in at least 1 gut microbiome compilation study or metastudy. Geodermatophilus obscurus is unlikely to be a gut coloniser. (Luedemann1968)



  • This organism has been recovered from desert soil, USA. 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.
    • QUIRKS
  • Aerobic and poor growth at 37C suggests this not a gut coloniser.
    • GENERAL CHARACTERISTICS (Luedemann1968);
    Character Response
  • Substrates hydrolysed or digested:
  • starch;
  • 🌡
  • Temperature tolerance:
  • grows weakly at 37℃; Grows optimally at 24-28℃.
  • H+
  • Acid from carbohydrates usually produced:
  • D-arabinose; L-arabinose; fructose; glucose; rhamnose; ribose; xylose; glycerol;
  • ⥅
  • Substrates assimilated or utilised:
  • L-arabinose; fructose; galactose; glucose; inositol; mannitol; sucrose; xylose;
    • SPECIAL FEATURES
    Character Response
  • ✗
  • Haemolysis:
  • absent
  • Nitrate:
  • weakly reduced

    • Details

    GENERAL
    Lineage Physiology General Growth Tolerances Hydrol./digest./degr.
    Phylum:  Actinobacteria Class:  Actinomycetia Order:  Geodermatophilales Family:  Geodermatophilaceae Genus:  Geodermatophilus Gram stain:  + O2 Relation.:  aerobic Spore:  Exospore Motility:  Swimming Morphology:  Filamentous
    Health:  Unknown
    Source:  desert soil, USA
    Opt. T:  24-28℃
    Mid T(℃):  37(w)
    		Gelatin:  neg Starch:  + Casein:  neg
    CARBOHYDRATE ACID FORMATION
    Monosaccharide O/F Oligosaccharide O/F Polysaccharide O/F Polyol O/F Other O/F
    D-Arabinose:  + L-Arabinose:  + Fructose:  + Glucose:  + Rhamnose:  + Ribose:  + Xylose:  + Glycerol:  +
    SUBSTRATE ASSIMILATION & UTILISATION
    Monosaccharide util/assim Oligosaccharide util/assim Other carboh. util/assim Amino acid util/assim Organic acid util/assim
    Arabinose:  neg L-Arabinose:  + Fructose:  + Galactose:  + Glucose:  + Rhamnose:  neg Ribose:  neg Xylose:  + Lactose:  neg Melezitose:  neg Melibiose:  neg Sucrose:  + Adonitol:  neg Inositol:  + Mannitol:  +

    References

    SPECIFIC REFERENCES FOR GEODERMATOPHILUS OBSCURUS
  • Luedemann1968 - Geodermatophilus, a new genus of the Dermatophilaceae (Actinomycetales).
  • ...............................
    • GUT MICROBIOME COMPILATIONS AND METASTUDIES FOR GEODERMATOPHILUS OBSCURUS
  • Zeller2014 - Potential of fecal microbiota for early-stage detection of colorectal cancer
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    • Added: October 10, 2022