Actinobacillus capsulatus

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

Overview

  • Actinobacillus capsulatus is a Gram-negative, non-spore-forming, facultatively anaerobic, non-motile, coccus bacterium. It has been detected in at least 1 gut microbiome compilation study or metastudy. The DNA G+C content is 42.4%. Actinobacillus capsulatus is probably a rare gut coloniser. (Kuhnert2007)



  • This organism has been recovered from pets and rodent clinical isolates. The risk classification (www.baua.de) for this organism is 2, i.e., risk of individual infection, but low risk of spread (notes: animal pathogen). Could be a possible pathogen in humans, but unknown at this stage. A possible gut commensal.
    • GENERAL CHARACTERISTICS (Kuhnert2007);
    Character Response
  • Substrates hydrolysed or digested:
  • urea;
  • H+
  • Acid from carbohydrates usually produced:
  • fructose; galactose; glucose; mannose; ribose; xylose; amygdalin; aesculin; cellubiose; gentiobiose; lactose; maltose; melibiose; raffinose; sucrose; trehalose; mannitol; arbutin; salicin;
  • ±
  • Strain-dependent acid from carbs:
  • L-arabinose; sorbitol;
  • Active enzymes:
  • Ala arylamidase; catalase; α-galactosidase; β-galactosidase; α-glucosidase; β-glucosidase; oxidase; urease;
    • SPECIAL FEATURES (Kuhnert2007);
    Character Response
  • ✗
  • Metabolites not produced:
  • H₂S; indole;
  • ✗
  • Methyl red test:
  • not active
  • ✗
  • VP test:
  • not active
  • KCN growth:
  • inhibited
  • ✗
  • Haemolysis:
  • absent
  • ✓
  • Nitrate:
  • reduced
  • ✗
  • Pigments:
  • not produced

    • Details

    GENERAL
    Lineage Physiology General Growth Tolerances Hydrol./digest./degr.
    Phylum:  Proteobacteria Class:  Gammaproteobacteria Order:  Pasteurellales Family:  Pasteurellaceae Genus:  Actinobacillus Gram stain:  neg O2 Relation.:  facultatively anaerobic Spore:  No spore Motility:  Sessile Morphology:  Coccus Pigment:  neg
    Health:  Unknown
    Source:  pets and rodent clinical isolates
    DNA G+C(%):  42.4
    		Urea:  + Gelatin:  neg Tween:  20(neg) 80(neg)
    CARBOHYDRATE ACID FORMATION
    Monosaccharide O/F Oligosaccharide O/F Polysaccharide O/F Polyol O/F Other O/F
    D-Arabinose:  neg L-Arabinose:  d Fructose:  + Fucose:  neg D-Fucose:  neg Galactose:  + Glucose:  + Mannose:  + Rhamnose:  neg Ribose:  + Sorbose:  neg Xylose:  + L-Xylose:  neg Cellubiose:  + Gentiobiose:  d(+) Lactose:  + Maltose:  + Melezitose:  neg Melibiose:  + Sucrose:  + Trehalose:  + Turanose:  neg Amygdalin:  d(+) Aesculin:  d(+) Glycogen:  neg Inulin:  neg Adonitol:  neg D-Arabitol:  neg Dulcitol:  neg Erythritol:  neg Inositol:  neg Mannitol:  + Sorbitol:  d Xylitol:  neg Arbutin:  + Salicin:  +
    ENZYME ACTIVITY
    Enzymes: General Enzymes: Carbohydrate Enzymes: Protein Enzymes: Arylamidases Enzymes: Esters/fats
    Oxidase:  d(+) Catalase:  d(+) Urease:  + α-Fucosidase:  neg α-Galactosidase:  + β-Galactosidase:  + α-Glucosidase:  d(+) β-Glucosidase:  + β-Glucuronidase:  neg α-Mannosidase:  neg Xylosidase:  neg ArgDH:  neg LysDC:  neg OrnDC:  neg Phe deaminase:  neg AlanineAA:  +
    METABOLITES - PRODUCTION & USE
    Fuel Usable Metabolites Metabolites Released Special Products Compounds Produced

    		H2S:  neg Indole:  neg Pigment:  neg

    References

    SPECIFIC REFERENCES FOR ACTINOBACILLUS CAPSULATUS
  • Kuhnert2007 - Emended description of Actinobacillus capsulatus Arseculeratne 1962, 38AL.
  • ...............................
    • GUT MICROBIOME COMPILATIONS AND METASTUDIES FOR ACTINOBACILLUS CAPSULATUS
  • Forster2019 - A human gut bacterial genome and culture collection for improved metagenomic analyses.
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    • Added: February 09, 2022