Streptococcus gwangjuense

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

Overview

  • Streptococcus gwangjuense 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 40.2%. Streptococcus gwangjuense is likely to be transient and not a long-term gut coloniser. (Park2019b)



  • This organism has been recovered from pericoronitis lesion, Korea. Is a rare opportunistic pathogen. Likely to be transient and not a long-term gut commensal.
    • GENERAL CHARACTERISTICS (Park2019b);
    Character Response
  • 🧂
  • Salt tolerance:
  • tolerates 0-1% salt; Grows optimally with 0-0.5% salt.
  • pH
  • Acidity tolerance:
  • tolerates pH 5.5; tolerates pH 9; Grows optimally at pH 7.0-7.5.
  • 🌡
  • Temperature tolerance:
  • grows at 30℃; grows at 40℃; Grows optimally at 37-40℃.
  • H+
  • Acid from carbohydrates usually produced:
  • glucose; lactose;
  • Active enzymes:
  • β-galactosidase; leucine aminopeptidase;
    • 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:  pericoronitis lesion, Korea
    DNA G+C(%):  40.2
    Opt. T:  37-40℃
    Lower T(℃):  30(+)
    Mid T(℃):  40(+)
    NaCl 0.5-2%:  0-1(+)
    Opt. pH:  7.0-7.5
    pH 4.2-5.9:  5.5(+)
    pH >8:  9(+)
    		Aesculin:  neg Arginine:  neg Hippurate:  neg
    CARBOHYDRATE ACID FORMATION
    Monosaccharide O/F Oligosaccharide O/F Polysaccharide O/F Polyol O/F Other O/F
    Glucose:  + Lactose:  + Trehalose:  neg Mannitol:  neg Sorbitol:  neg
    ENZYME ACTIVITY
    Enzymes: General Enzymes: Carbohydrate Enzymes: Protein Enzymes: Arylamidases Enzymes: Esters/fats
    Catalase:  neg α-Galactosidase:  neg β-Galactosidase:  + β-Glucosidase:  neg LeuAP:  +

    References

    SPECIFIC REFERENCES FOR STREPTOCOCCUS GWANGJUENSE
  • Park2019b - Streptococcus gwangjuense sp. nov., Isolated from Human Pericoronitis
  • ...............................
    • GUT MICROBIOME COMPILATIONS AND METASTUDIES FOR STREPTOCOCCUS GWANGJUENSE
  • New2022 - Collective effects of human genomic variation on microbiome function.
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    • Added: March 18, 2022