Enterococcus pallens

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

Overview

  • Enterococcus pallens 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. Enterococcus pallens is probably a rare gut coloniser. (Svec2011Bergey; Tyrrell2002; Rossi2016)



  • This organism has been recovered from clinical sources. The risk classification (www.baua.de) for this organism is 1, i.e., low risk of infection and spread (notes: opportunistic in immunocompromised patients). It is an opportunistic pathogen. A possible gut commensal.
    • GENERAL CHARACTERISTICS (Svec2011Bergey); (Tyrrell2002);
    Character Response
  • Substrates hydrolysed or digested:
  • aesculin; hippurate;
  • 🧂
  • Salt tolerance:
  • tolerates 2% salt; tolerates 6.5% salt;
  • 💧
  • Bile tolerance:
  • Resistant to 40% bile
  • 🌡
  • Temperature tolerance:
  • grows at 10℃; grows at 45℃;
  • H+
  • Acid from carbohydrates usually produced:
  • arabinose; glucose; ribose; sorbose; lactose; melibiose; raffinose; sucrose; trehalose; glycerol; mannitol; sorbitol; salicin;
  • ⥅
  • Substrates assimilated or utilised:
  • pyruvate;
  • Active enzymes:
  • alkaline phosphatase; Leu arylamidase;
    • SPECIAL FEATURES (Svec2011Bergey); (Tyrrell2002);
    Character Response
  • ✓
  • Metabolites produced:
  • lactate;
  • Pigments:
  • bright yellow

    • Details

    GENERAL
    Lineage Physiology General Growth Tolerances Hydrol./digest./degr.
    Phylum:  Firmicutes Class:  Bacilli Order:  Lactobacillales Family:  Enterococcaceae Genus:  Enterococcus Gram stain:  + O2 Relation.:  facultatively anaerobic Spore:  No spore Motility:  Sessile Morphology:  Coccus Pigment:  bright yellow
    Health:  Unknown
    Source:  clinical sources
    Low T(℃):  10(+)
    High T(℃):  45(+)
    NaCl 0.5-2%:  2(+)
    NaCl >6%:  6.5(+)
    Bile reaction(%):  40(+)
    		Aesculin:  + Urea:  neg Arginine:  neg Hippurate:  +
    CARBOHYDRATE ACID FORMATION
    Monosaccharide O/F Oligosaccharide O/F Polysaccharide O/F Polyol O/F Other O/F
    Arabinose:  + D-Arabinose:  neg Fucose:  neg D-Fucose:  neg Glucose:  + Ribose:  + Sorbose:  + Xylose:  neg L-Xylose:  neg Lactose:  + Melibiose:  + Sucrose:  + Trehalose:  + Inulin:  neg Erythritol:  neg Glycerol:  + Mannitol:  + Sorbitol:  + Me-α-D-Glc:  neg Me-Xyloside:  neg Salicin:  +
    SUBSTRATE ASSIMILATION & UTILISATION
    Monosaccharide util/assim Oligosaccharide util/assim Other carboh. util/assim Amino acid util/assim Organic acid util/assim
    Pyruvate:  +
    ENZYME ACTIVITY
    Enzymes: General Enzymes: Carbohydrate Enzymes: Protein Enzymes: Arylamidases Enzymes: Esters/fats
    Catalase:  neg Urease:  neg ArgDH:  neg LeuAA:  + PyrrolidAA:  neg AlkalineP:  +
    METABOLITES - PRODUCTION & USE
    Fuel Usable Metabolites Metabolites Released Special Products Compounds Produced

    		Lactate:  + Pigment:  bright yellow

    References

    SPECIFIC REFERENCES FOR ENTEROCOCCUS PALLENS
  • Svec2011Bergey - Bergey's manual of systematic bacteriology. Vol. 3, The Firmicutes. Family Enterococcaceae, Genus I. Enterococcus
  • Tyrrell2002 - Enterococcus gilvus sp. nov. and Enterococcus pallens sp. nov. isolated from human clinical specimens.
  • Rossi2016 - Mining metagenomic whole genome sequences revealed subdominant but constant Lactobacillus population in the human gut microbiota.
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    • GUT MICROBIOME COMPILATIONS AND METASTUDIES FOR ENTEROCOCCUS PALLENS
  • Lagier2016 - Culture of previously uncultured members of the human gut microbiota by culturomics.
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    • Added: February 09, 2022