Averyella dalhousiensis

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

Overview

  • Averyella dalhousiensis is a Gram-negative, non-spore-forming, facultatively anaerobic, motile, rod-shaped bacterium. It has been detected in at least 2 gut microbiome compilation studies or metastudies. Averyella dalhousiensis is probably a rare gut coloniser. (Johnson2005)



  • This organism has been recovered from human faeces (Alkhalil2017), and wounds. Is a rare opportunistic pathogen. A possible gut commensal.
    • GENERAL CHARACTERISTICS (Johnson2005);
    Character Response
  • Substrates hydrolysed or digested:
  • urea;
  • H+
  • Acid from carbohydrates usually produced:
  • L-arabinose; galactose; glucose; mannose; rhamnose; xylose; cellubiose; maltose; trehalose; mannitol; sorbitol; salicin;
  • ±
  • Strain-dependent acid from carbs:
  • dulcitol;
  • ⥅
  • Substrates assimilated or utilised:
  • citrate; malonate;
  • ±
  • Strain-dependent substrate utilisation:
  • acetate;
  • Active enzymes:
  • β-galactosidase; lycine decarboxylase; ornithine decarboxylase;
    • SPECIAL FEATURES (Johnson2005);
    Character Response
  • ✗
  • Metabolites not produced:
  • H₂S; indole;
  • ✓
  • Methyl red test:
  • active
  • ✗
  • VP test:
  • not active
  • ✓
  • ONPG test:
  • active
  • KCN growth:
  • growth observed
  • ✓
  • NO3➔NO2:
  • reduced
  • ✗
  • Pigments:
  • not produced
    • RESPONSE TO ANTIBIOTICS (Johnson2005);
    Class Active Resistant
  • Penicillins:
  • carbenicillin;
  • ampicillin; penicillin;
  • Cephalosporins:
  • cephalothin;
  • Tetracyclines:
  • tetracycline;
  • Quinolines:
  • nalidixic-acid;
  • Aminoglycosides:
  • gentamicin; kanamycin; streptomycin;
  • Heterocycles:
  • chloramphenicol; sulfadiazine;
  • Miscellaneous antibiotics:
  • colistin;

  • Johnson, A. S., Tarr, C. L., Brown, B. H., Jr, Birkhead, K. M., & Farmer, J. J., 3rd. (2005). First case of septicemia due to a strain belonging to enteric group 58 (Enterobacteriaceae) and its designation as Averyella dalhousiensis gen. nov., sp. nov., based on analysis of strains from 20 additional cases. Journal of Clinical Microbiology, 43(10), 5195–5201.

    • Details

    GENERAL
    Lineage Physiology General Growth Tolerances Hydrol./digest./degr.
    Phylum:  Proteobacteria Class:  Gammaproteobacteria Order:  Enterobacterales Family:  Enterobacteriaceae Genus:  Averyella Gram stain:  neg O2 Relation.:  facultatively anaerobic Spore:  No spore Motility:  Swimming Morphology:  Rod Pigment:  neg
    Health:  Unknown
    Source:  human faeces (Alkhalil2017), and wounds
    		Aesculin:  neg Urea:  d(+) Gelatin:  neg DNA:  neg
    CARBOHYDRATE ACID FORMATION
    Monosaccharide O/F Oligosaccharide O/F Polysaccharide O/F Polyol O/F Other O/F
    L-Arabinose:  + Galactose:  + Glucose:  + Mannose:  + Rhamnose:  + Xylose:  + Cellubiose:  + Lactose:  w Maltose:  + Melibiose:  neg Sucrose:  neg Trehalose:  + Adonitol:  neg D-Arabitol:  neg Dulcitol:  d Erythritol:  neg Glycerol:  w Inositol:  neg Mannitol:  + Sorbitol:  + Me-α-D-Glc:  vr Salicin:  +
    SUBSTRATE ASSIMILATION & UTILISATION
    Monosaccharide util/assim Oligosaccharide util/assim Other carboh. util/assim Amino acid util/assim Organic acid util/assim
    Acetate:  d Citrate:  + Malonate:  + Mucate:  neg
    ENZYME ACTIVITY
    Enzymes: General Enzymes: Carbohydrate Enzymes: Protein Enzymes: Arylamidases Enzymes: Esters/fats
    Oxidase:  neg β-Galactosidase:  + ArgDH:  neg LysDC:  + OrnDC:  + Phe deaminase:  neg DNAse:  neg Lipase:  neg
    METABOLITES - PRODUCTION & USE
    Fuel Usable Metabolites Metabolites Released Special Products Compounds Produced

    		H2S:  neg Indole:  neg Pigment:  neg
    ANTIBIOTICS ℞
    Penicillins & Penems (μg/mL) Cephalosporins (μg/mL) Aminoglycosides (μg/mL) Macrolides (μg/mL) Quinolones (μg/mL)
    ampicillin:  R(10; disc)
    carbenicil:  S(100; disc)
    penicillin:  R(10U)
    cephalothin:  R(30; disc)
    gentamicin:  S(10; disc)
    kanamycin:  S(30; disc)
    streptomycin:  S(10; disc)
    nalidixic-acid:  S(30; disc)
    Tetracyclines (μg/mL) Vancomycin Class (μg/mL) Polypep/ketides (μg/mL) Heterocycles (μg/mL) Other (μg/mL)
    tetracycline:  S(30; disc)
    chloramphenicol:  S(30; disc)
    sulfadiazine:  S(250; disc)
    colistin:  S(10; disc)

    References

    SPECIFIC REFERENCES FOR AVERYELLA DALHOUSIENSIS
  • Johnson2005 - First Case of Septicemia Due to a Strain Belonging to Enteric Group 58 (Enterobacteriaceae ) and Its Designation as Averyella dalhousiensis gen. nov., sp. nov., Based on Analysis of Strains from 20 Additional Cases.
  • ...............................
    • GUT MICROBIOME COMPILATIONS AND METASTUDIES FOR AVERYELLA DALHOUSIENSIS
  • Lagier2016 - Culture of previously uncultured members of the human gut microbiota by culturomics.
  • RajilicStojanovic2014 - The first 1000 cultured species of the human gastrointestinal microbiota.
  • ...............................
    • GENERAL REFERENCES FOR AVERYELLA DALHOUSIENSIS
  • Alkhalil2017 - Bacterial involvements in ulcerative colitis: molecular and microbiological studies
    • Added: April 08, 2021