Brachymonas chironomi

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

Overview

  • Brachymonas chironomi is a Gram-negative, non-spore-forming, strictly aerobic, non-motile, pleiomorph rod-shaped bacterium. It has been detected in at least 1 gut microbiome compilation study or metastudy. The DNA G+C content is 60.0%. Brachymonas chironomi is likely to be transient and not a long-term gut coloniser. (Halpern2009)



  • This organism has been recovered from midge egg, Israel. Pathogenicity status unknown, or very unlikely to be pathogenic. Likely to be transient and not a long-term gut commensal.
    • QUIRKS
  • Obligate aerobe; unlikely to be a gut coloniser.
    • GENERAL CHARACTERISTICS (Halpern2009);
    Character Response
  • 🧂
  • Salt tolerance:
  • tolerates 0% salt; tolerates 2.5% salt; Grows optimally with 0.5% salt.
  • pH
  • Acidity tolerance:
  • tolerates pH 5.0; tolerates pH 9.0; Grows optimally at pH 6.0-8.0.
  • 🌡
  • Temperature tolerance:
  • grows at 18℃; grows at 37℃; Grows optimally at 30℃.
  • ⥅
  • Substrates assimilated or utilised:
  • phenylacetate;
  • Active enzymes:
  • catalase; oxidase;
    • SPECIAL FEATURES (Halpern2009);
    Character Response
  • ✗
  • Metabolites not produced:
  • Hâ‚‚S; indole;
  • ✓
  • VP test:
  • active
  • ✓
  • Nitrate:
  • reduced

    • Details

    GENERAL
    Lineage Physiology General Growth Tolerances Hydrol./digest./degr.
    Phylum:  Proteobacteria Class:  Betaproteobacteria Order:  Burkholderiales Family:  Comamonadaceae Genus:  Brachymonas Gram stain:  neg O2 Relation.:  strictly aerobic Spore:  No spore Motility:  Sessile Morphology:  Pleiomorph rod
    Health:  Unknown
    Source:  midge egg, Israel
    DNA G+C(%):  60.0
    Opt. T:  30℃
    Low T(℃):  18(+)
    Mid T(℃):  37(+)
    NaCl 0.5-2%:  0(+)
    NaCl 3-5%:  2.5(+)
    Opt. pH:  6.0-8.0
    pH 4.2-5.9:  5.0(+)
    pH >8:  9.0(+)
    		Urea:  neg Gelatin:  neg
    CARBOHYDRATE ACID FORMATION
    Monosaccharide O/F Oligosaccharide O/F Polysaccharide O/F Polyol O/F Other O/F
    Arabinose:  neg Fructose:  neg Galactose:  neg Glucose:  neg Mannose:  neg Ribose:  neg Lactose:  neg Sucrose:  neg Trehalose:  neg Mannitol:  neg
    SUBSTRATE ASSIMILATION & UTILISATION
    Monosaccharide util/assim Oligosaccharide util/assim Other carboh. util/assim Amino acid util/assim Organic acid util/assim
    Arabinose:  neg Glucose:  neg Mannose:  neg Maltose:  neg N_Acetyl_glucosamine:  neg Gluconate:  neg Mannitol:  neg Adipate:  neg Citrate:  neg Malate:  neg Phenylacetate:  +
    ENZYME ACTIVITY
    Enzymes: General Enzymes: Carbohydrate Enzymes: Protein Enzymes: Arylamidases Enzymes: Esters/fats
    Oxidase:  + Catalase:  + Urease:  neg β-Galactosidase:  neg ArgDH:  neg LysDC:  neg OrnDC:  neg Trypsin:  w TrpAA:  neg LeuAA:  w ValAA:  w AlkalineP:  w AcidP:  w Esterase(C4):  w EstLip(C8):  w
    METABOLITES - PRODUCTION & USE
    Fuel Usable Metabolites Metabolites Released Special Products Compounds Produced

    		H2S:  neg Indole:  neg

    References

    SPECIFIC REFERENCES FOR BRACHYMONAS CHIRONOMI
  • Halpern2009 - Brachymonas chironomi sp. nov., isolated from a chironomid egg mass, and emended description of the genus Brachymonas.
  • ...............................
    • GUT MICROBIOME COMPILATIONS AND METASTUDIES FOR BRACHYMONAS CHIRONOMI
  • Forster2019 - A human gut bacterial genome and culture collection for improved metagenomic analyses.
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    • Added: February 09, 2022