Treponema medium

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

Overview

  • Treponema medium is a Gram-negative, non-spore-forming, anaerobic, motile, spirochete bacterium. It has been detected in at least 2 gut microbiome compilation studies or metastudies. The DNA G+C content is 51%. Treponema medium is likely to be transient and not a long-term gut coloniser. (Umemoto1997)



  • This organism has been recovered from subgingival dental plaque. The risk classification (www.baua.de) for this organism is 2, i.e., risk of individual infection, but low risk of spread. Is a rare opportunistic pathogen. Likely to be transient and not a long-term gut commensal.
    • GENERAL CHARACTERISTICS (Umemoto1997);
    Character Response
  • Substrates hydrolysed or digested:
  • aesculin; hippurate;
  • 🌡
  • Temperature tolerance:
  • Grows optimally at 37℃.
  • H+
  • Acid from carbohydrates usually produced:
  • fructose; galactose; glucose; mannose; ribose; inulin; maltose; raffinose; sucrose; trehalose; salicin;
    • SPECIAL FEATURES (Umemoto1997);
    Character Response
  • ✓
  • Metabolites produced:
  • acetate; butyrate; valerate (trace); ammonia;
  • ✗
  • Metabolites not produced:
  • indole;

    • Details

    GENERAL
    Lineage Physiology General Growth Tolerances Hydrol./digest./degr.
    Phylum:  Spirochaetes Class:  Spirochaetia Order:  Spirochaetales Family:  Treponemataceae Genus:  Treponema Gram stain:  neg O2 Relation.:  anaerobic Spore:  No spore Motility:  Swimming Morphology:  Spirochete
    Health:  Unknown
    Source:  subgingival dental plaque
    DNA G+C(%):  51
    Opt. T:  37℃
    		Aesculin:  + Hippurate:  +
    CARBOHYDRATE ACID FORMATION
    Monosaccharide O/F Oligosaccharide O/F Polysaccharide O/F Polyol O/F Other O/F
    Fructose:  + Galactose:  + Glucose:  + Mannose:  + Ribose:  + Maltose:  + Sucrose:  + Trehalose:  + Inulin:  + Salicin:  +
    METABOLITES - PRODUCTION & USE
    Fuel Usable Metabolites Metabolites Released Special Products Compounds Produced

    		Acetate:  + Butyrate:  + Valerate:  trace(+) Ammonia:  + Indole:  neg

    References

    SPECIFIC REFERENCES FOR TREPONEMA MEDIUM
  • Umemoto1997 - Treponema medium sp. nov., isolated from human subgingival dental plaque.
  • ...............................
    • GUT MICROBIOME COMPILATIONS AND METASTUDIES FOR TREPONEMA MEDIUM
  • New2022 - Collective effects of human genomic variation on microbiome function.
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    • Added: March 18, 2022