Corynebacterium ihumii

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

Overview

  • Corynebacterium ihumii is a Gram-positive, non-spore-forming, facultatively anaerobic, non-motile, rod-shaped bacterium. It has been detected in at least 1 gut microbiome compilation study or metastudy. The DNA G+C content is 65.1%. Corynebacterium ihumii is probably a rare gut coloniser. (Padmanabhan2014a)



  • This organism has been recovered from human faeces (Padmanabhan2014a). Pathogenicity status unknown, or very unlikely to be pathogenic. A possible gut commensal.
    • GENERAL CHARACTERISTICS (Padmanabhan2014a);
    Character Response
  • 🌡
  • Temperature tolerance:
  • grows at 30℃; grows at 45℃; Grows optimally at 37℃.
  • H+
  • Acid from carbohydrates usually produced:
  • L-arabinose; fructose; galactose; glucose; mannose; rhamnose; ribose; xylose; amygdalin; glycogen; inulin; starch; cellubiose; lactose; maltose; D-lyxose; melibiose; raffinose; sucrose; trehalose; mannitol; arbutin; α-methyl glucoside; methyl mannoside; methyl xyloside; N-Ac glucosamine; salicin;
  • ⥅
  • Substrates assimilated or utilised:
  • fructose; glucose; mannose; xylose;
  • Active enzymes:
  • alkaline phosphatase; acid phosphatase; catalase; cystine arylamidase; Leu arylamidase; Val arylamidase; naphthol-ASBI-P;
    • SPECIAL FEATURES (Padmanabhan2014a);
    Character Response
  • ✗
  • Nitrate:
  • not reduced
    • RESPONSE TO ANTIBIOTICS (Padmanabhan2014a);
    Class Active Resistant
  • Penicillins:
  • amoxicillin; amoxicillin-clavulanic acid; imipenem;
  • Macrolides:
  • erythromycin;
  • Tetracyclines:
  • doxycycline;
  • Quinolines:
  • ciprofloxacin;
  • Polypep/ketides:
  • rifampicin;
  • Heterocycles:
  • trimethoprim-sulfamethoxazole;
  • metronidazole;
  • Vancomycins:
  • vancomycin;

    • 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:  Rod
    Health:  Unknown
    Source:  human faeces (Padmanabhan2014a)
    DNA G+C(%):  65.1
    Opt. T:  37℃
    Lower T(℃):  30(+)
    High T(℃):  45(+)
    		Gelatin:  neg
    CARBOHYDRATE ACID FORMATION
    Monosaccharide O/F Oligosaccharide O/F Polysaccharide O/F Polyol O/F Other O/F
    D-Arabinose:  neg L-Arabinose:  + Fructose:  + Fucose:  neg D-Fucose:  neg Galactose:  + Glucose:  + Mannose:  + D-Lyxose:  + Rhamnose:  + Ribose:  + Sorbose:  neg D-Tagatose:  neg Xylose:  + Cellubiose:  + Gentiobiose:  neg Lactose:  + Maltose:  + Melezitose:  neg Melibiose:  + Sucrose:  + Trehalose:  + Turanose:  neg Amygdalin:  + Aesculin:  neg Glycogen:  + Inulin:  + Starch:  + Adonitol:  neg D-Arabitol:  neg L-Arabitol:  neg Dulcitol:  neg Erythritol:  neg Glycerol:  neg Inositol:  neg Mannitol:  + Sorbitol:  neg Xylitol:  neg Arbutin:  + Gluconate:  neg 2-Ketogluconate:  neg Me-α-D-Glc:  + Me-α-D-Mann:  + Me-Xyloside:  + NAc-α-GA:  + Salicin:  +
    SUBSTRATE ASSIMILATION & UTILISATION
    Monosaccharide util/assim Oligosaccharide util/assim Other carboh. util/assim Amino acid util/assim Organic acid util/assim
    Fructose:  + Glucose:  + Mannose:  + Xylose:  + 5-Ketogluconate:  neg
    ENZYME ACTIVITY
    Enzymes: General Enzymes: Carbohydrate Enzymes: Protein Enzymes: Arylamidases Enzymes: Esters/fats
    Oxidase:  neg Catalase:  + Urease:  neg Ac-β-glcamnd:  neg α-Fucosidase:  neg α-Galactosidase:  neg β-Galactosidase:  neg α-Glucosidase:  neg β-Glucosidase:  neg β-Glucuronidase:  neg α-Mannosidase:  neg Chymotrypsin:  neg Trypsin:  neg CystineAA:  + LeuAA:  + PyrrolidAA:  neg ValAA:  + AlkalineP:  + AcidP:  + Esterase(C4):  neg EstLip(C8):  neg Lipase(C14):  neg
    ANTIBIOTICS ℞
    Penicillins & Penems (μg/mL) Cephalosporins (μg/mL) Aminoglycosides (μg/mL) Macrolides (μg/mL) Quinolones (μg/mL)
    amoxicillin:  Sens
    Augmentin:  Sens
    imipenem:  Sens
    erythromycin:  Sens
    ciprofloxacin:  Sens
    Tetracyclines (μg/mL) Vancomycin Class (μg/mL) Polypep/ketides (μg/mL) Heterocycles (μg/mL) Other (μg/mL)
    doxycycline:  Sens
    vancomycin:  Sens
    rifampicin:  Sens
    metronidazole:  Res
    SXT:  Sens

    References

    SPECIFIC REFERENCES FOR CORYNEBACTERIUM IHUMII
  • Padmanabhan2014a - Genome sequence and description of Corynebacterium ihumii sp. nov.
  • ...............................
    • GUT MICROBIOME COMPILATIONS AND METASTUDIES FOR CORYNEBACTERIUM IHUMII
  • Lagier2016 - Culture of previously uncultured members of the human gut microbiota by culturomics.
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    • Added: July 12, 2021