Streptococcus orisratti

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

Overview

  • Streptococcus orisratti is a Gram-positive, 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 39.6-43.5%. Streptococcus orisratti is probably a rare gut coloniser.



  • This organism has been recovered from the tooth surface of laboratory rats. 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
    Character Response
  • Substrates hydrolysed or digested:
  • aesculin; starch;
  • 🧂
  • Salt tolerance:
  • doesn't tolerate 6.5% salt;
  • 💧
  • Bile tolerance:
  • Resistant to 40% bile
  • pH
  • Acidity tolerance:
  • tolerates pH 9.6;
  • 🌡
  • Temperature tolerance:
  • grows at 37℃; grows at 45℃;
  • H+
  • Acid from carbohydrates usually produced:
  • fructose; galactose; glucose; mannose; amygdalin; glycogen; inulin; starch; cellubiose; lactose; maltose; melibiose; raffinose; sucrose; trehalose; arbutin; salicin;
  • Active enzymes:
  • Leu arylamidase;
    • SPECIAL FEATURES
    Character Response
  • ✗
  • VP test:
  • not active
  • Haemolysis:
  • alpha

    • 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:  Coccus
    Health:  Unknown
    Source:  the tooth surface of laboratory rats
    DNA G+C(%):  39.6-43.5
    Mid T(℃):  37(+)
    High T(℃):  45(+)
    NaCl >6%:  6.5(neg)
    pH >8:  9.6(+)
    Bile reaction(%):  40(+)
    		Aesculin:  + Starch:  + 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 Fructose:  + Galactose:  + Glucose:  + Mannose:  + Ribose:  neg Cellubiose:  + Lactose:  + Maltose:  + Melezitose:  neg Melibiose:  + Sucrose:  + Trehalose:  + Amygdalin:  + Glycogen:  + Inulin:  + Starch:  + Mannitol:  neg Sorbitol:  neg Arbutin:  + Salicin:  +
    ENZYME ACTIVITY
    Enzymes: General Enzymes: Carbohydrate Enzymes: Protein Enzymes: Arylamidases Enzymes: Esters/fats
    Catalase:  neg α-Galactosidase:  neg β-Galactosidase:  neg β-Glucuronidase:  neg LeuAA:  + PyrrolidAA:  neg AlkalineP:  neg

    References

    SPECIFIC REFERENCES FOR STREPTOCOCCUS ORISRATTI
  • Zhu2000 - A new species of oral Streptococcus isolated from Sprague-Dawley rats, Streptococcus orisratti sp. nov.
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    • GUT MICROBIOME COMPILATIONS AND METASTUDIES FOR STREPTOCOCCUS ORISRATTI
  • Byrd2020 - Stability and dynamics of the human gut microbiome and its association with systemic immune traits.
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    • Added: May 15, 2022