Virgibacillus ihumii

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

Overview

  • Virgibacillus ihumii is a Gram-positive, non-spore-forming, strictly aerobic, motile, rod-shaped bacterium. The DNA G+C content is 41.1%. Virgibacillus ihumii is probably a rare gut coloniser. (Camara2020)



  • This organism has been recovered from human faeces (healthy). Pathogenicity status unknown, or very unlikely to be pathogenic. A possible gut commensal.
    • QUIRKS
  • Halophilic
    • GENERAL CHARACTERISTICS (Camara2020);
    Character Response
  • pH
  • Acidity tolerance:
  • Grows optimally at pH 7.5.
  • 🌡
  • Temperature tolerance:
  • grows at 28℃; grows at 42℃;
  • H+
  • Acid from carbohydrates usually produced:
  • aesculin; D-turanose;
  • Active enzymes:
  • alkaline phosphatase; catalase; esterase C4; esterase lipase C8; naphthol-ASBI-P;
    • SPECIAL FEATURES
    Character Response
  • ✗
  • Nitrate:
  • not reduced

    • Details

    GENERAL
    Lineage Physiology General Growth Tolerances Hydrol./digest./degr.
    Phylum:  Firmicutes Class:  Bacilli Order:  Bacillales Family:  Bacillaceae Genus:  Virgibacillus Gram stain:  + O2 Relation.:  strictly aerobic Spore:  No spore Motility:  Swimming Morphology:  Rod
    Health:  Unknown
    Source:  human faeces (healthy)
    DNA G+C(%):  41.1
    Lower T(℃):  28(+)
    High T(℃):  42(+)
    Opt. pH:  7.5
    CARBOHYDRATE ACID FORMATION
    Monosaccharide O/F Oligosaccharide O/F Polysaccharide O/F Polyol O/F Other O/F
    D-Arabinose:  neg L-Arabinose:  neg Fructose:  neg Fucose:  neg D-Fucose:  neg Galactose:  neg Glucose:  neg Mannose:  neg D-Lyxose:  neg Rhamnose:  neg Ribose:  neg Sorbose:  neg D-Tagatose:  neg Xylose:  neg L-Xylose:  neg Cellubiose:  neg Gentiobiose:  neg Lactose:  neg Maltose:  neg Melezitose:  neg Melibiose:  neg Sucrose:  neg Trehalose:  neg Turanose:  + Amygdalin:  neg Aesculin:  + Glycogen:  neg Inulin:  neg Starch:  neg Adonitol:  neg D-Arabitol:  neg L-Arabitol:  neg Dulcitol:  neg Erythritol:  neg Glycerol:  neg Inositol:  neg Mannitol:  neg Sorbitol:  neg Xylitol:  neg Arbutin:  neg Gluconate:  neg 2-Ketogluconate:  neg 5-Ketogluconate:  neg Me-α-D-Glc:  neg Me-α-D-Mann:  neg Me-Xyloside:  neg NAc-α-GA:  neg Salicin:  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:  neg LeuAA:  neg ValAA:  neg AlkalineP:  + Esterase(C4):  + EstLip(C8):  +

    References

    SPECIFIC REFERENCES FOR VIRGIBACILLUS IHUMII
  • Camara2020 - Virgibacillus ihumii sp. nov., a new bacterium isolated from the stool of healthy African children.
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    • Added: April 09, 2023