Actinomyces canis

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

Overview

  • Actinomyces canis is a Gram-positive, non-spore-forming, facultatively anaerobic, non-motile, rod-shaped bacterium. It has been detected in at least 2 gut microbiome compilation studies or metastudies. Actinomyces canis is unlikely to be a gut coloniser. (Hoyles2000)



  • This organism has been recovered from human faeces, and dogs. 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). It is an opportunistic pathogen. Likely to be transient and not a long-term gut commensal.
    • GENERAL CHARACTERISTICS (Hoyles2000);
    Character Response
  • H+
  • Acid from carbohydrates usually produced:
  • L-arabinose; ribose; xylose; glycogen; lactose; maltose; pullulan;
  • ±
  • Strain-dependent acid from carbs:
  • glucose; raffinose; sucrose;
  • Active enzymes:
  • Ala arylamidase; Ala-Phe-Pro arylamidase; N-Ac β-glucosaminidase; catalase; fucosidase; α-galactosidase; β-galactosidase; α-glucosidase; Leu arylamidase;
    • SPECIAL FEATURES (Hoyles2000);
    Character Response
  • ✓
  • Metabolites produced:
  • acetate; lactate; succinate;
  • ✗
  • VP test:
  • not active
  • ✗
  • Nitrate:
  • not reduced
  • ✗
  • NO3➔NO2:
  • not reduced
    • RESPONSE TO ANTIBIOTICS
    Class Active Resistant
  • Penicillins:
  • imipenem; penicillin G; piperacillin-tazobactam;
  • Aminoglycosides:
  • amikacin; kanamycin; neomycin; tobramycin;

    • Details

    GENERAL
    Lineage Physiology General Growth Tolerances Hydrol./digest./degr.
    Phylum:  Actinobacteria Class:  Actinomycetia Order:  Actinomycetales Family:  Actinomycetaceae Genus:  Actinomyces Gram stain:  + O2 Relation.:  facultatively anaerobic Spore:  No spore Motility:  Sessile Morphology:  Rod
    Health:  Unknown
    Source:  human faeces, and dogs
    		Aesculin:  neg Urea:  neg Gelatin:  neg Hippurate:  neg
    CARBOHYDRATE ACID FORMATION
    Monosaccharide O/F Oligosaccharide O/F Polysaccharide O/F Polyol O/F Other O/F
    D-Arabinose:  neg L-Arabinose:  + Glucose:  d Mannose:  neg Ribose:  + D-Tagatose:  neg Xylose:  + Lactose:  + Maltose:  + Melezitose:  neg Melibiose:  neg Sucrose:  d Trehalose:  neg Dextrin:  neg Glycogen:  + D-Arabitol:  neg Glycerol:  neg Mannitol:  neg Sorbitol:  neg Me-α-D-Glc:  neg
    SUBSTRATE ASSIMILATION & UTILISATION
    Monosaccharide util/assim Oligosaccharide util/assim Other carboh. util/assim Amino acid util/assim Organic acid util/assim
    Melibiose:  neg Succinate:  vr
    ENZYME ACTIVITY
    Enzymes: General Enzymes: Carbohydrate Enzymes: Protein Enzymes: Arylamidases Enzymes: Esters/fats
    Catalase:  + Ac-β-glcamnd:  + α-Fucosidase:  + α-Galactosidase:  + β-Galactosidase:  + α-Glucosidase:  + β-Glucosidase:  neg AlanineAA:  + AlaPheProAA:  + CystineAA:  w LeuAA:  + AlkalineP:  neg EstLip(C8):  w
    ANTIBIOTICS ℞
    Penicillins & Penems (μg/mL) Cephalosporins (μg/mL) Aminoglycosides (μg/mL) Macrolides (μg/mL) Quinolones (μg/mL)
    penicillin_G:  Sens
    piper-taz:  Sens
    imipenem:  Sens
    amikacin:  Res
    kanamycin:  Res
    neomycin:  Res
    tobramycin:  Res
    Tetracyclines (μg/mL) Vancomycin Class (μg/mL) Polypep/ketides (μg/mL) Heterocycles (μg/mL) Other (μg/mL)

    References

    SPECIFIC REFERENCES FOR ACTINOMYCES CANIS
  • Hoyles2000 - Actinomyces canis sp. nov., isolated from dogs.
  • ...............................
    • GUT MICROBIOME COMPILATIONS AND METASTUDIES FOR ACTINOMYCES CANIS
  • McLaughlin2010 - The bacteriology of pouchitis: a molecular phylogenetic analysis using 16S rRNA gene cloning and sequencing.
  • RajilicStojanovic2014 - The first 1000 cultured species of the human gastrointestinal microbiota.
  • ...............................
    • Added: April 08, 2021