Streptococcus sinensis

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

Overview

  • Streptococcus sinensis is a Gram-positive, non-spore-forming, facultatively anaerobic, non-motile, coccus bacterium. It has been detected in at least 2 gut microbiome compilation studies or metastudies. The DNA G+C content is 53%. Streptococcus sinensis is probably a rare gut coloniser. (Whiley2011Bergey; Woo2002)



  • This organism has been recovered from the blood of a patient with infective endocarditis. The risk classification (www.baua.de) for this organism is 2, i.e., risk of individual infection, but low risk of spread. It is an opportunistic pathogen. A possible gut commensal.
    • GENERAL CHARACTERISTICS (Whiley2011Bergey); (Woo2002);
    Character Response
  • Substrates hydrolysed or digested:
  • aesculin; arginine;
  • 🧂
  • Salt tolerance:
  • doesn't tolerate 6% salt;
  • 💧
  • Bile tolerance:
  • Resistant to 40% bile
  • 🌡
  • Temperature tolerance:
  • Grows optimally at 37℃.
  • H+
  • Acid from carbohydrates usually produced:
  • glucose; mannose; starch; cellubiose; lactose; maltose; pullulan; sucrose; trehalose; salicin;
  • Active enzymes:
  • β-glucosidase; Leu arylamidase;
    • SPECIAL FEATURES (Whiley2011Bergey); (Woo2002);
    Character Response
  • ✓
  • Metabolites produced:
  • lactate;
  • ✗
  • Metabolites not produced:
  • indole;
  • ✓
  • VP test:
  • active
  • Haemolysis:
  • alpha
  • ✗
  • Nitrate:
  • not reduced
    • RESPONSE TO ANTIBIOTICS (Woo2002);
    Class Active Resistant
  • Miscellaneous antibiotics:
  • novobiocin; polymyxin B;

    • 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 blood of a patient with infective endocarditis
    DNA G+C(%):  53
    Opt. T:  37℃
    NaCl >6%:  6(neg)
    Bile reaction(%):  40(+)
    		Aesculin:  + Urea:  neg Arginine:  + Hippurate:  neg
    CARBOHYDRATE ACID FORMATION
    Monosaccharide O/F Oligosaccharide O/F Polysaccharide O/F Polyol O/F Other O/F
    Glucose:  + Mannose:  + Ribose:  neg D-Tagatose:  neg Xylose:  neg Cellubiose:  + Lactose:  + Maltose:  + Melezitose:  neg Melibiose:  neg Sucrose:  + Trehalose:  + Glycogen:  neg Inulin:  neg Starch:  + D-Arabitol:  neg Mannitol:  neg Sorbitol:  neg Salicin:  +
    SUBSTRATE ASSIMILATION & UTILISATION
    Monosaccharide util/assim Oligosaccharide util/assim Other carboh. util/assim Amino acid util/assim Organic acid util/assim
    Pyruvate:  neg
    ENZYME ACTIVITY
    Enzymes: General Enzymes: Carbohydrate Enzymes: Protein Enzymes: Arylamidases Enzymes: Esters/fats
    Catalase:  neg Urease:  neg Ac-β-glcamnd:  neg α-Galactosidase:  neg β-Galactosidase:  neg β-Glucosidase:  + β-Glucuronidase:  neg LysDC:  neg OrnDC:  neg AlaPheProAA:  neg GlyTrpAA:  neg LeuAA:  + PyrrolidAA:  neg AlkalineP:  neg
    METABOLITES - PRODUCTION & USE
    Fuel Usable Metabolites Metabolites Released Special Products Compounds Produced

    		Lactate:  + Indole:  neg
    ANTIBIOTICS ℞
    Penicillins & Penems (μg/mL) Cephalosporins (μg/mL) Aminoglycosides (μg/mL) Macrolides (μg/mL) Quinolones (μg/mL)
    Tetracyclines (μg/mL) Vancomycin Class (μg/mL) Polypep/ketides (μg/mL) Heterocycles (μg/mL) Other (μg/mL)
    novobiocin:  Res
    polymyxin_B:  Res

    References

    SPECIFIC REFERENCES FOR STREPTOCOCCUS SINENSIS
  • Whiley2011Bergey - Bergey's manual of systematic bacteriology. Vol. 3, The Firmicutes. Family Streptococcaceae, Genus I. Streptococcus
  • Woo2002 - Streptococcus sinensis sp. nov., a novel species isolated from a patient with infective endocarditis.
  • ...............................
    • GUT MICROBIOME COMPILATIONS AND METASTUDIES FOR STREPTOCOCCUS SINENSIS
  • Byrd2020 - Stability and dynamics of the human gut microbiome and its association with systemic immune traits.
  • De2020 - Metagenomic analysis of gut microbiome and resistome of diarrheal fecal samples from Kolkata, India, reveals the core and variable microbiota including signatures of microbial dark matter.
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    • Added: January 19, 2022