Aeromonas bestiarum

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

Overview

  • Aeromonas bestiarum is a Gram-negative, non-spore-forming, aerobic, motile, rod-shaped bacterium. It has been detected in at least 2 gut microbiome compilation studies or metastudies. Aeromonas bestiarum is probably a rare gut coloniser. (Ali1996; Igbinosa2012; MartinCarnahan2005Bergey)



  • This organism has been recovered from human faeces (CCUG), animals and the environment. The risk classification (www.baua.de) for this organism is 1, i.e., low risk of infection and spread (notes: human and animal pathogen; opportunistic in immunocompromised patients). It is an opportunistic pathogen. A possible gut commensal.
    • GENERAL CHARACTERISTICS (Ali1996); (Igbinosa2012); (MartinCarnahan2005Bergey);
    Character Response
  • Substrates hydrolysed or digested:
  • aesculin; gelatin;
  • ±
  • Strain-dependent hydrolysis or digestion:
  • DNA;
  • 🧂
  • Salt tolerance:
  • tolerates 3% salt;
  • H+
  • Acid from carbohydrates usually produced:
  • arabinose; L-arabinose; glucose; mannose; rhamnose; maltose; sucrose; trehalose; glycerol; mannitol; salicin;
  • ±
  • Strain-dependent acid from carbs:
  • lactose; α-methyl glucoside;
  • ⥅
  • Substrates assimilated or utilised:
  • acetate;
  • ±
  • Strain-dependent substrate utilisation:
  • citrate;
  • Active enzymes:
  • arginine dihydrolase; N-Ac β-glucosaminidase; catalase; β-galactosidase; β-glucosidase; lycine decarboxylase; oxidase;
    • SPECIAL FEATURES (Ali1996); (Igbinosa2012); (MartinCarnahan2005Bergey);
    Character Response
  • ✓
  • Metabolites produced:
  • H₂S; indole;
  • ✓
  • VP test:
  • active
  • ✓
  • ONPG test:
  • active
  • ✓
  • Haemolysis:
  • present
  • ✓
  • Nitrate:
  • reduced
    • RESPONSE TO ANTIBIOTICS (Igbinosa2012); (MartinCarnahan2005Bergey);
    Class Active Resistant
  • Penicillins:
  • ampicillin; carbenicillin;
  • Cephalosporins:
  • cephalothin;
  • NOTES

    Aeromonas bestiarum was isolated from infected fish.

  • Janda, J. M., & Abbott, S. L. (1998). Evolving concepts regarding the genus Aeromonas: an expanding Panorama of species, disease presentations, and unanswered questions. Clinical Infectious Diseases: An Official Publication of the Infectious Diseases Society of America, 27(2), 332–344.

    • Details

    GENERAL
    Lineage Physiology General Growth Tolerances Hydrol./digest./degr.
    Phylum:  Proteobacteria Class:  Gammaproteobacteria Order:  Aeromonadales Family:  Aeromonadaceae Genus:  Aeromonas Gram stain:  neg O2 Relation.:  aerobic Spore:  No spore Motility:  Swimming Morphology:  Rod
    Health:  Unknown
    Source:  human faeces (CCUG), animals and the environment
    NaCl 3-5%:  3(+)
    		Aesculin:  + Urea:  neg Gelatin:  + DNA:  d
    CARBOHYDRATE ACID FORMATION
    Monosaccharide O/F Oligosaccharide O/F Polysaccharide O/F Polyol O/F Other O/F
    Arabinose:  + L-Arabinose:  + Glucose:  + Mannose:  + Rhamnose:  d(+) Xylose:  neg Cellubiose:  neg Lactose:  d Maltose:  + Melibiose:  neg Sucrose:  + Trehalose:  + Amygdalin:  neg Adonitol:  neg D-Arabitol:  neg L-Arabitol:  neg Dulcitol:  neg Glycerol:  + Inositol:  neg Mannitol:  + Sorbitol:  neg 5-Ketogluconate:  neg Me-α-D-Glc:  d Salicin:  d(+)
    SUBSTRATE ASSIMILATION & UTILISATION
    Monosaccharide util/assim Oligosaccharide util/assim Other carboh. util/assim Amino acid util/assim Organic acid util/assim
    Melibiose:  neg Gluconate:  neg Acetate:  + Citrate:  d DL-Lactate:  neg Malonate:  neg
    ENZYME ACTIVITY
    Enzymes: General Enzymes: Carbohydrate Enzymes: Protein Enzymes: Arylamidases Enzymes: Esters/fats
    Oxidase:  + Catalase:  + Urease:  neg Ac-β-glcamnd:  + α-Galactosidase:  neg β-Galactosidase:  + α-Glucosidase:  neg β-Glucosidase:  + β-Glucuronidase:  neg ArgDH:  + LysDC:  + OrnDC:  neg Lipase:  neg
    METABOLITES - PRODUCTION & USE
    Fuel Usable Metabolites Metabolites Released Special Products Compounds Produced

    		H2S:  + Indole:  +
    ANTIBIOTICS ℞
    Penicillins & Penems (μg/mL) Cephalosporins (μg/mL) Aminoglycosides (μg/mL) Macrolides (μg/mL) Quinolones (μg/mL)
    ampicillin:  R(10; disc)
    carbenicil:  R(30; disc)
    cephalothin:  R(30; disc)
    Tetracyclines (μg/mL) Vancomycin Class (μg/mL) Polypep/ketides (μg/mL) Heterocycles (μg/mL) Other (μg/mL)
    colistin:  Var(MIC50): 4; disc), MIC90: Var(4; disc

    References

    SPECIFIC REFERENCES FOR AEROMONAS BESTIARUM
  • Ali1996 - Aeromonas bestiarum sp. nov. (formerly genomospecies DNA group 2A Hydrophila), a new species isolated from non-human sources.
  • Igbinosa2012 - Emerging Aeromonas Species Infections and Their Significance in Public Health.
  • MartinCarnahan2005Bergey - Bergey's manual of systematic bacteriology. Vol. 2, The Gammaproteobacteria Part B. Family Aeromonadaceae, Genus I. Aeromonas
  • ...............................
    • GUT MICROBIOME COMPILATIONS AND METASTUDIES FOR AEROMONAS BESTIARUM
  • 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 AEROMONAS BESTIARUM
  • CCUG - Culture Collection University of Gothenburg - Entire Collection
  • Igbinosa2012 - Emerging Aeromonas Species Infections and Their Significance in Public Health.
    • Added: April 08, 2021