Veillonella ratti

(aka Veillonella alcalescens subsp. ratti)

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

Overview

  • Veillonella ratti, (aka Veillonella alcalescens subsp. ratti), is a Gram-negative, non-spore-forming, strictly anaerobic, non-motile, bacterium. It has been detected in at least 3 gut microbiome compilation studies or metastudies. The DNA G+C content is 41-43%. Veillonella ratti is probably a rare gut coloniser. (Rogosa1965a; Carlier2011Bergey)



  • This organism has been recovered from human faeces, and rat mouth. 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. Likely to be transient and not a long-term gut commensal.
    • GENERAL CHARACTERISTICS (Rogosa1965a); (Carlier2011Bergey);
    Character Response
  • Active enzymes:
  • naphthol-ASBI-P;
  • ±
  • Strain-dependent active enzymes:
  • alkaline phosphatase;
    • SPECIAL FEATURES (Carlier2011Bergey);
    Character Response
  • ✗
  • Metabolites not produced:
  • indole;
  • ✓
  • Nitrate:
  • reduced
    • RESPONSE TO ANTIBIOTICS (Carlier2011Bergey);
    Class Active Resistant
  • Penicillins:
  • amoxicillin-clavulanic acid;
  • Macrolides:
  • azithromycin;
  • Quinolines:
  • ciprofloxacin; levofloxacin;
  • Aminoglycosides:
  • kanamycin;
  • Heterocycles:
  • metronidazole;
  • Vancomycins:
  • vancomycin;
  • Miscellaneous antibiotics:
  • clindamycin;
  • colistin;

  • McLaughlin, S. D., Walker, A. W., Churcher, C., Clark, S. K., Tekkis, P. P., Johnson, M. W., Parkhill, J., Ciclitira, P. J., Dougan, G., Nicholls, R. J., & Petrovska, L. (2010). The bacteriology of pouchitis: a molecular phylogenetic analysis using 16S rRNA gene cloning and sequencing. Annals of Surgery, 252(1), 90–98.

    • Details

    GENERAL
    Lineage Physiology General Growth Tolerances Hydrol./digest./degr.
    Phylum:  Firmicutes Class:  Negativicutes Order:  Veillonellales Family:  Veillonellaceae Genus:  Veillonella Alt. name:  Veillonella alcalescens subsp. ratti Gram stain:  neg O2 Relation.:  strictly anaerobic Spore:  No spore Motility:  Sessile
    Health:  Unknown
    Source:  human faeces, and rat mouth
    DNA G+C(%):  41-43
    		Urea:  neg
    CARBOHYDRATE ACID FORMATION
    Monosaccharide O/F Oligosaccharide O/F Polysaccharide O/F Polyol O/F Other O/F
    Mannose:  neg
    ENZYME ACTIVITY
    Enzymes: General Enzymes: Carbohydrate Enzymes: Protein Enzymes: Arylamidases Enzymes: Esters/fats
    Oxidase:  neg Urease:  neg Ac-β-glcamnd:  neg α-Fucosidase:  neg α-Galactosidase:  neg β-Galactosidase:  neg α-Glucosidase:  neg β-Glucosidase:  neg β-Glucuronidase:  neg ArgDH:  vr GluDC:  neg AlanineAA:  neg GluGluAA:  neg GlyAA:  neg LeuAA:  neg LeuGlyAA:  neg PyrrolidAA:  neg AlkalineP:  d
    METABOLITES - PRODUCTION & USE
    Fuel Usable Metabolites Metabolites Released Special Products Compounds Produced

    		Indole:  neg
    ANTIBIOTICS ℞
    Penicillins & Penems (μg/mL) Cephalosporins (μg/mL) Aminoglycosides (μg/mL) Macrolides (μg/mL) Quinolones (μg/mL)
    Augmentin:  S(MIC50): 0.25, MIC90: 2, RNG: (0.06-4)
    penicillin_G:  Var(MIC50): 1, MIC90: 8, RNG: (0.06-8)
    cefalexin:  Var(MIC50): 2, MIC90: 8, RNG: (0.25-16)
    kanamycin:  S(1000; disc)
    azithromycin:  S(MIC50): 1, MIC90: 2, RNG: (0.125->32)
    erythromycin:  Var(MIC50): 4, MIC90: 8, RNG: (0.5->32)
    ciprofloxacin:  S(MIC50): ≤0.5, MIC90: 4, RNG: (≤0.5->8)
    levofloxacin:  S(MIC50): 0.25, MIC90: 0.5, RNG: (≤0.06-8)
    Tetracyclines (μg/mL) Vancomycin Class (μg/mL) Polypep/ketides (μg/mL) Heterocycles (μg/mL) Other (μg/mL)
    tetracycline:  Var(MIC50): 2, MIC90: 16, RNG: (0.5-32)
    vancomycin:  R(5; disc)
    metronidazole:  S(MIC50): 2, MIC90: 4, RNG: (0.125-4)
    clindamycin:  S(MIC50): 0.06, MIC90: 0.125, RNG: (≤0.03->32)
    colistin:  R(10; disc)

    References

    SPECIFIC REFERENCES FOR VEILLONELLA RATTI
  • Mays1982 - Taxonomy of the Genus Veillonella Prevot.
  • Rogosa1965a - The Genus Veillonella IV. Serological Groupings, and Genus and Species Emendations.
  • Carlier2011Bergey - Bergey's manual of systematic bacteriology. Vol. 3, The Firmicutes. Family Veillonellaceae, Genus I. Veillonella
  • ...............................
    • GUT MICROBIOME COMPILATIONS AND METASTUDIES FOR VEILLONELLA RATTI
  • McLaughlin2010 - The bacteriology of pouchitis: a molecular phylogenetic analysis using 16S rRNA gene cloning and sequencing.
  • RajilicStojanovic2014 - The first 1000 cultured species of the human gastrointestinal microbiota.
  • ...............................
    • GENERAL REFERENCES FOR VEILLONELLA RATTI
  • Ludwig2009 - Revised road map to the phylum Firmicutes.
    • Added: April 08, 2021