Brachybacterium muris

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

Overview

  • Brachybacterium muris is a Gram-positive, non-spore-forming, microaerophilic, non-motile, oval-shaped bacterium. It has been detected in at least 1 gut microbiome compilation study or metastudy. Brachybacterium muris is probably a rare gut coloniser. (Buczolits2003)



  • This organism has been recovered from lab mice. 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.
    • GENERAL CHARACTERISTICS (Buczolits2003);
    Character Response
  • Substrates hydrolysed or digested:
  • aesculin; starch;
  • 🧂
  • Salt tolerance:
  • tolerates 10% salt;
  • pH
  • Acidity tolerance:
  • doesn't tolerate pH 5; tolerates pH 6.0; tolerates pH 10;
  • 🌡
  • Temperature tolerance:
  • doesn't grow at 4℃; Grows optimally at 25-37℃.
  • H+
  • Acid from carbohydrates usually produced:
  • D-arabinose; L-arabinose; fructose; galactose; glucose; rhamnose; ribose; lactose; maltose; sucrose;
  • ±
  • Strain-dependent acid from carbs:
  • mannose;
  • Active enzymes:
  • catalase;
    • SPECIAL FEATURES (Buczolits2003);
    Character Response
  • ✗
  • Metabolites not produced:
  • H₂S; indole;
  • ✗
  • VP test:
  • not active
  • ✗
  • Haemolysis:
  • absent
  • ✓
  • NO3➔NO2:
  • reduced
  • Pigments:
  • light yellow

    • Details

    GENERAL
    Lineage Physiology General Growth Tolerances Hydrol./digest./degr.
    Phylum:  Actinobacteria Class:  Actinomycetia Order:  Micrococcales Family:  Dermabacteraceae Genus:  Brachybacterium Gram stain:  + O2 Relation.:  microaerophilic Spore:  No spore Motility:  Sessile Morphology:  Oval-shaped Pigment:  light yellow
    Health:  Unknown
    Source:  lab mice
    Opt. T:  25-37℃
    Low T(℃):  4(neg)
    NaCl >6%:  10(+)
    pH 4.2-5.9:  5(neg)
    pH 6.0-8.0:  6.0(+)
    pH >8:  10(+)
    		Aesculin:  + Starch:  + Casein:  neg Tyrosine:  neg Tween:  20(+) 80(d)
    CARBOHYDRATE ACID FORMATION
    Monosaccharide O/F Oligosaccharide O/F Polysaccharide O/F Polyol O/F Other O/F
    D-Arabinose:  + L-Arabinose:  + Fructose:  + Galactose:  + Glucose:  + Mannose:  d Rhamnose:  + Ribose:  + Xylose:  neg Lactose:  + Maltose:  + Melibiose:  neg Sucrose:  + Sorbitol:  neg
    ENZYME ACTIVITY
    Enzymes: General Enzymes: Carbohydrate Enzymes: Protein Enzymes: Arylamidases Enzymes: Esters/fats
    Oxidase:  neg Catalase:  + Urease:  neg
    METABOLITES - PRODUCTION & USE
    Fuel Usable Metabolites Metabolites Released Special Products Compounds Produced

    		H2S:  neg Indole:  neg Pigment:  light yellow

    References

    SPECIFIC REFERENCES FOR BRACHYBACTERIUM MURIS
  • Buczolits2003 - Brachybacterium muris sp. nov., isolated from the liver of a laboratory mouse strain.
  • ...............................
    • GUT MICROBIOME COMPILATIONS AND METASTUDIES FOR BRACHYBACTERIUM MURIS
  • Hu2019 - The Gut Microbiome Signatures Discriminate Healthy From Pulmonary Tuberculosis Patients
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    • Added: September 24, 2022