Corynebacterium efficiens

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

Overview

  • Corynebacterium efficiens is a Gram-positive, non-spore-forming, facultatively anaerobic, non-motile, club-shaped-shaped bacterium. It has been detected in at least 2 gut microbiome compilation studies or metastudies. The DNA G+C content is 59-60.2%. Corynebacterium efficiens is probably a rare gut coloniser. (Fudou2002; Bernard2012Bergey)



  • This organism has been recovered from soil and vegetables. 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.
    • QUIRKS
  • Produces large amounts of L-glutamic acid under aerobic conditions.
    • GENERAL CHARACTERISTICS (Fudou2002); (Bernard2012Bergey);
    Character Response
  • pH
  • Acidity tolerance:
  • doesn't tolerate pH 6;
  • 🌡
  • Temperature tolerance:
  • grows at 45℃; Grows optimally at 30-40℃.
  • H+
  • Acid from carbohydrates usually produced:
  • fructose; glucose; mannose; ribose; maltose;
  • ⥅
  • Substrates assimilated or utilised:
  • acetate; lactate; pyruvate;
  • Active enzymes:
  • catalase;
    • SPECIAL FEATURES (Fudou2002);
    Character Response
  • ✓
  • NO3➔NO2:
  • reduced

    • Details

    GENERAL
    Lineage Physiology General Growth Tolerances Hydrol./digest./degr.
    Phylum:  Actinobacteria Class:  Actinomycetia Order:  Corynebacteriales Family:  Corynebacteriaceae Genus:  Corynebacterium Gram stain:  + O2 Relation.:  facultatively anaerobic Spore:  No spore Motility:  Sessile Morphology:  Club rod
    Health:  Unknown
    Source:  soil and vegetables
    DNA G+C(%):  59-60.2
    Opt. T:  30-40℃
    High T(℃):  45(+)
    pH 6.0-8.0:  6(neg)
    		Aesculin:  vr Urea:  vr Tyrosine:  neg
    CARBOHYDRATE ACID FORMATION
    Monosaccharide O/F Oligosaccharide O/F Polysaccharide O/F Polyol O/F Other O/F
    Fructose:  + Galactose:  neg Glucose:  + Mannose:  + Ribose:  + Xylose:  neg Lactose:  neg Maltose:  + Glycogen:  neg Starch:  neg Mannitol:  neg Salicin:  neg
    SUBSTRATE ASSIMILATION & UTILISATION
    Monosaccharide util/assim Oligosaccharide util/assim Other carboh. util/assim Amino acid util/assim Organic acid util/assim
    Acetate:  + Adipate:  neg Citrate:  neg Glycolate:  neg Lactate:  + Pimelate:  neg Pyruvate:  + Succinate:  neg
    ENZYME ACTIVITY
    Enzymes: General Enzymes: Carbohydrate Enzymes: Protein Enzymes: Arylamidases Enzymes: Esters/fats
    Catalase:  + Ac-β-glcamnd:  neg β-Galactosidase:  neg α-Glucosidase:  neg PyrrolidAA:  neg AlkalineP:  neg

    References

    SPECIFIC REFERENCES FOR CORYNEBACTERIUM EFFICIENS
  • Nouioui2018 - Genome-Based Taxonomic Classification of the Phylum Actinobacteria.
  • Fudou2002 - Corynebacterium efficiens sp. nov., a glutamic-acid-producing species from soil and vegetables.
  • Bernard2012Bergey - Bergey's manual of systematic bacteriology. Vol. 5, The Actinobacteria. Part A & B. Corynebacteriaceae, Genus I. Corynebacterium
  • ...............................
    • GUT MICROBIOME COMPILATIONS AND METASTUDIES FOR CORYNEBACTERIUM EFFICIENS
  • Lagier2016 - Culture of previously uncultured members of the human gut microbiota by culturomics.
  • Zeller2014 - Potential of fecal microbiota for early-stage detection of colorectal cancer
  • ...............................
    • Added: January 14, 2022