Streptococcus caballi

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

Overview

  • Streptococcus caballi is a Gram-positive, non-spore-forming, facultatively anaerobic, non-motile, oval-shaped bacterium. It has been detected in at least 1 gut microbiome compilation study or metastudy. The DNA G+C content is 46.8%. Streptococcus caballi is probably a rare gut coloniser. (Milinovich2008)



  • This organism has been recovered from the rectum of a horse with laminitis. Pathogenicity status unknown, or very unlikely to be pathogenic. A possible gut commensal.
    • QUIRKS
  • Homoacetogen.
    • GENERAL CHARACTERISTICS (Milinovich2008);
    Character Response
  • Substrates hydrolysed or digested:
  • aesculin;
  • 🧂
  • Salt tolerance:
  • doesn't tolerate 6.5% salt;
  • 💧
  • Bile tolerance:
  • Resistant to 40% bile
  • pH
  • Acidity tolerance:
  • Grows optimally at pH 7.3-7.4.
  • 🌡
  • Temperature tolerance:
  • Grows optimally at 35℃.
  • H+
  • Acid from carbohydrates usually produced:
  • glycogen; inulin; starch; maltose; pullulan; melibiose; raffinose; sucrose; trehalose;
  • Active enzymes:
  • Ala-Phe-Pro arylamidase; α-galactosidase; β-glucosidase; Leu arylamidase;
    • SPECIAL FEATURES (Milinovich2008);
    Character Response
  • ✓
  • Metabolites produced:
  • acetate; lactate;
  • ✗
  • Metabolites not produced:
  • indole;
  • ✓
  • VP test:
  • active
  • Haemolysis:
  • alpha
  • ✗
  • Nitrate:
  • not reduced

    • Details

    GENERAL
    Lineage Physiology General Growth Tolerances Hydrol./digest./degr.
    Phylum:  Firmicutes Class:  Bacilli Order:  Lactobacillales Family:  Streptococcaceae Genus:  Streptococcus Gram stain:  + O2 Relation.:  facultatively anaerobic Spore:  No spore Motility:  Sessile Morphology:  Oval-shaped
    Health:  Unknown
    Source:  the rectum of a horse with laminitis
    DNA G+C(%):  46.8
    Opt. T:  35℃
    NaCl >6%:  6.5(neg)
    Opt. pH:  7.3-7.4
    Bile reaction(%):  40(+)
    		Aesculin:  + Urea:  neg Arginine:  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:  neg Ribose:  neg D-Tagatose:  neg Lactose:  neg Maltose:  + Melezitose:  neg Melibiose:  + Sucrose:  + Trehalose:  + Glycogen:  + Inulin:  + Starch:  + Mannitol:  neg Sorbitol:  neg
    ENZYME ACTIVITY
    Enzymes: General Enzymes: Carbohydrate Enzymes: Protein Enzymes: Arylamidases Enzymes: Esters/fats
    Catalase:  neg Urease:  neg Ac-β-glcamnd:  neg α-Galactosidase:  + β-Galactosidase:  neg β-Glucosidase:  + β-Glucuronidase:  neg β-Mannosidase:  neg AlaPheProAA:  + GlyTrpAA:  neg LeuAA:  + PyrrolidAA:  neg AlkalineP:  neg
    METABOLITES - PRODUCTION & USE
    Fuel Usable Metabolites Metabolites Released Special Products Compounds Produced

    		Acetate:  + Lactate:  + Indole:  neg

    References

    SPECIFIC REFERENCES FOR STREPTOCOCCUS CABALLI
  • Milinovich2008 - Streptococcus henryi sp. nov. and Streptococcus caballi sp. nov., isolated from the hindgut of horses with oligofructose-induced laminitis.
  • ...............................
    • GUT MICROBIOME COMPILATIONS AND METASTUDIES FOR STREPTOCOCCUS CABALLI
  • Forster2019 - A human gut bacterial genome and culture collection for improved metagenomic analyses.
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    • Added: February 09, 2022