Varibaculum timonense

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

Overview

  • Varibaculum timonense is a Gram-positive, non-spore-forming, strictly anaerobic, non-motile, rod-shaped - curved bacterium. The DNA G+C content is 33.2%. Varibaculum timonense is probably a rare gut coloniser. (Guilhot2017; Lo2019)



  • This organism has been recovered from human stool samples. Pathogenicity status unknown, or very unlikely to be pathogenic. A possible gut commensal.
    • GENERAL CHARACTERISTICS (Guilhot2017); (Lo2019);
    Character Response
  • Substrates hydrolysed or digested:
  • aesculin;
  • pH
  • Acidity tolerance:
  • Grows optimally at pH 7.5.
  • 🌡
  • Temperature tolerance:
  • grows at 45℃; Grows optimally at 37℃.
  • H+
  • Acid from carbohydrates usually produced:
  • cellubiose; lactose; maltose; melezitose; sucrose; mannitol; salicin;
  • Active enzymes:
  • alkaline phosphatase; acid phosphatase; esterase C4; esterase lipase C8; α-glucosidase; Leu arylamidase; lipase C14; α-mannosidase; trypsin; urease; naphthol-ASBI-P;
    • SPECIAL FEATURES
    Character Response
  • ✗
  • Nitrate:
  • not reduced

    • Details

    GENERAL
    Lineage Physiology General Growth Tolerances Hydrol./digest./degr.
    Phylum:  Actinobacteria Class:  Actinomycetia Order:  Actinomycetales Family:  Actinomycetaceae Genus:  Varibaculum Gram stain:  + O2 Relation.:  strictly anaerobic Spore:  No spore Motility:  Sessile Morphology:  Rod - curved
    Health:  Unknown
    Source:  human stool samples
    DNA G+C(%):  33.2
    Opt. T:  37℃
    High T(℃):  45(+)
    Opt. pH:  7.5
    		Aesculin:  + Gelatin:  neg
    CARBOHYDRATE ACID FORMATION
    Monosaccharide O/F Oligosaccharide O/F Polysaccharide O/F Polyol O/F Other O/F
    Arabinose:  neg Glucose:  neg Mannose:  neg Rhamnose:  neg Xylose:  neg Cellubiose:  + Lactose:  + Maltose:  + Melezitose:  + Sucrose:  + Trehalose:  neg Glycerol:  neg Mannitol:  + Sorbitol:  neg Salicin:  +
    ENZYME ACTIVITY
    Enzymes: General Enzymes: Carbohydrate Enzymes: Protein Enzymes: Arylamidases Enzymes: Esters/fats
    Oxidase:  neg Catalase:  neg Urease:  + Ac-β-glcamnd:  neg α-Fucosidase:  neg α-Galactosidase:  neg β-Galactosidase:  neg α-Glucosidase:  + β-Glucosidase:  neg β-Glucuronidase:  neg α-Mannosidase:  + Chymotrypsin:  neg Trypsin:  + CystineAA:  neg LeuAA:  + ValAA:  neg AlkalineP:  + AcidP:  + Esterase(C4):  + EstLip(C8):  + Lipase(C14):  +

    References

    SPECIFIC REFERENCES FOR VARIBACULUM TIMONENSE
  • Guilhot2017 - 'Prevotella ihumii' sp. nov. and 'Varibaculum timonense' sp. nov., two new bacterial species isolated from a fresh human stool specimen.
  • Lo2019 - Varibaculum timonense sp. nov., a new bacterial species isolated from human stool sample.
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    • Added: May 25, 2022