Virgibacillus doumboii

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

Overview

  • Virgibacillus doumboii is a Gram-positive, non-spore-forming, strictly aerobic, motile, rod-shaped bacterium. The DNA G+C content is 39.8%. Virgibacillus doumboii is probably a rare gut coloniser. (Konate2021)



  • This organism has been recovered from human faeces (healthy). Pathogenicity status unknown, or very unlikely to be pathogenic. A possible gut commensal.
    • GENERAL CHARACTERISTICS (Konate2021);
    Character Response
  • Substrates hydrolysed or digested:
  • aesculin;
  • 🧂
  • Salt tolerance:
  • tolerates 15% salt;
  • pH
  • Acidity tolerance:
  • tolerates pH 6.0; tolerates pH 9.5;
  • 🌡
  • Temperature tolerance:
  • grows at 28℃; grows at 42℃; Grows optimally at 37℃.
  • H+
  • Acid from carbohydrates usually produced:
  • glucose; D-turanose;
  • Active enzymes:
  • arginine dihydrolase; catalase; esterase C4; esterase lipase C8; β-glucosidase; urease;
    • SPECIAL FEATURES
    Character Response
  • ✓
  • NO3➔NO2:
  • reduced
    • RESPONSE TO ANTIBIOTICS (Konate2021);
    Class Active Resistant
  • Penicillins:
  • benzylpenicillin; imipenem; oxacillin;
  • Cephalosporins:
  • ceftazidime;
  • Macrolides:
  • erythromycin;
  • Tetracyclines:
  • doxycycline;
  • Quinolines:
  • ciprofloxacin;
  • Aminoglycosides:
  • amikacin;
  • Polypep/ketides:
  • rifampicin;
  • Heterocycles:
  • trimethoprim-sulfamethoxazole;
  • Vancomycins:
  • vancomycin;
  • Miscellaneous antibiotics:
  • clindamycin; linezolid;

    • 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(%):  39.8
    Opt. T:  37℃
    Lower T(℃):  28(+)
    High T(℃):  42(+)
    NaCl >6%:  15(+)
    pH 6.0-8.0:  6.0(+)
    pH >8:  9.5(+)
    		Aesculin:  +
    CARBOHYDRATE ACID FORMATION
    Monosaccharide O/F Oligosaccharide O/F Polysaccharide O/F Polyol O/F Other O/F
    Arabinose:  neg Fructose:  neg Galactose:  neg Glucose:  + L-Xylose:  neg Cellubiose:  neg Lactose:  neg Maltose:  neg Turanose:  + Starch:  neg Glycerol:  neg Salicin:  neg
    SUBSTRATE ASSIMILATION & UTILISATION
    Monosaccharide util/assim Oligosaccharide util/assim Other carboh. util/assim Amino acid util/assim Organic acid util/assim
    Citrate:  neg
    ENZYME ACTIVITY
    Enzymes: General Enzymes: Carbohydrate Enzymes: Protein Enzymes: Arylamidases Enzymes: Esters/fats
    Oxidase:  neg Catalase:  + Urease:  + Ac-β-glcamnd:  neg β-Glucosidase:  + ArgDH:  + AlkalineP:  neg AcidP:  neg Esterase(C4):  + EstLip(C8):  +
    ANTIBIOTICS ℞
    Penicillins & Penems (μg/mL) Cephalosporins (μg/mL) Aminoglycosides (μg/mL) Macrolides (μg/mL) Quinolones (μg/mL)
    benzyl-pen:  S(0.004)
    oxacillin:  S(0.094)
    imipenem:  S(0.064)
    ceftazidime:  S(0.075)
    amikacin:  R(>256)
    erythromycin:  S(0.5)
    linezolid:  S(0.125)
    ciprofloxacin:  S(0.047)
    Tetracyclines (μg/mL) Vancomycin Class (μg/mL) Polypep/ketides (μg/mL) Heterocycles (μg/mL) Other (μg/mL)
    doxycycline:  S(4)
    vancomycin:  S(0.38)
    rifampicin:  S(0.004)
    SXT:  R(>256)
    clindamycin:  S(0.023)

    References

    SPECIFIC REFERENCES FOR VIRGIBACILLUS DOUMBOII
  • Konate2021 - Virgibacillus doumboii sp. nov., a halophilic bacterium isolated from the stool of a healthy child in Mali.
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    • Added: April 09, 2023