Aeromonas salmonicida

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

Overview

  • Aeromonas salmonicida is a Gram-negative, non-spore-forming, facultatively anaerobic, non-motile, rod-shaped bacterium. It has been detected in at least 4 gut microbiome compilation studies or metastudies. The DNA G+C content is 57-59%. Aeromonas salmonicida is likely to be transient and not a long-term gut coloniser. (MartinCarnahan2005Bergey; Griffin1953)



  • This organism has been recovered from human faeces. 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.
    • QUIRKS
  • Could be a mesophilic form of A. salmonicida detected by Lagier(2016). Likely to be sessile. Unlikely gut coloniser.
    • GENERAL CHARACTERISTICS (MartinCarnahan2005Bergey); (Griffin1953);
    Character Response
  • Substrates hydrolysed or digested:
  • aesculin; gelatin; starch;
  • 🧂
  • Salt tolerance:
  • tolerates 0% salt; tolerates 3% salt;
  • pH
  • Acidity tolerance:
  • tolerates pH 6.4; tolerates pH 8.1;
  • 🌡
  • Temperature tolerance:
  • grows at 6℃; grows at 35℃; doesn't grow at 41℃; Grows optimally at 20-22℃.
  • H+
  • Acid from carbohydrates usually produced:
  • arabinose; fructose; galactose; glucose; mannose; dextrin; aesculin; glycogen; starch; lactose; maltose; trehalose; glycerol; mannitol; sorbitol;
  • ±
  • Strain-dependent acid from carbs:
  • L-arabinose; sucrose; arbutin; α-methyl glucoside; salicin;
  • ⥅
  • Substrates assimilated or utilised:
  • N-acetylglucosamine; aspartate; acetate; putrescine;
  • ±
  • Strain-dependent substrate utilisation:
  • citrate;
  • Active enzymes:
  • catalase; β-galactosidase; lycine decarboxylase; oxidase;
  • ±
  • Strain-dependent active enzymes:
  • DNase;
    • SPECIAL FEATURES (MartinCarnahan2005Bergey); (Griffin1953);
    Character Response
  • ✓
  • Metabolites produced:
  • indole;
  • ✗
  • Metabolites not produced:
  • H₂S;
  • ✗
  • Methyl red test:
  • not active
  • ±
  • VP test:
  • strain dependent
  • ✓
  • ONPG test:
  • active
  • Haemolysis:
  • beta
  • ✓
  • NO3➔NO2:
  • reduced
  • Pigments:
  • brown

    • 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.:  facultatively anaerobic Spore:  No spore Motility:  Sessile Morphology:  Rod Pigment:  brown
    Health:  Unknown
    Source:  human faeces
    DNA G+C(%):  57-59
    Opt. T:  20-22℃
    Low T(℃):  6(+)
    Mid T(℃):  35(+)
    High T(℃):  41(neg)
    NaCl 0.5-2%:  0(+)
    NaCl 3-5%:  3(+)
    pH 6.0-8.0:  6.4(+)
    pH >8:  8.1(+)
    		Aesculin:  + Urea:  neg Gelatin:  + Starch:  +
    CARBOHYDRATE ACID FORMATION
    Monosaccharide O/F Oligosaccharide O/F Polysaccharide O/F Polyol O/F Other O/F
    Arabinose:  + L-Arabinose:  d Fructose:  + Galactose:  + Glucose:  + Mannose:  + Rhamnose:  neg Xylose:  neg Cellubiose:  neg Lactose:  + Maltose:  + Melezitose:  neg Melibiose:  neg Sucrose:  d Trehalose:  + Amygdalin:  neg Dextrin:  + Aesculin:  + Glycogen:  + Inulin:  neg Starch:  + Adonitol:  neg D-Arabitol:  neg Dulcitol:  neg Erythritol:  neg Glycerol:  + Inositol:  neg Mannitol:  + Sorbitol:  + Arbutin:  d 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
    N_Acetyl_glucosamine:  d(+) Asp:  + Acetate:  + Citrate:  d Lactate:  neg Malonate:  neg Mucate:  neg
    ENZYME ACTIVITY
    Enzymes: General Enzymes: Carbohydrate Enzymes: Protein Enzymes: Arylamidases Enzymes: Esters/fats
    Oxidase:  + Catalase:  + Urease:  neg β-Galactosidase:  + ArgDH:  neg LysDC:  + OrnDC:  neg DNAse:  d
    METABOLITES - PRODUCTION & USE
    Fuel Usable Metabolites Metabolites Released Special Products Compounds Produced

    		H2S:  neg Indole:  + Pigment:  brown

    References

    SPECIFIC REFERENCES FOR AEROMONAS SALMONICIDA
  • MartinCarnahan2005Bergey - Bergey's manual of systematic bacteriology. Vol. 2, The Gammaproteobacteria Part B. Family Aeromonadaceae, Genus I. Aeromonas
  • MinanaGalbis2010a - The reference strain Aeromonas hydrophicla CIP 57.50 should be reclassified as Aeromonas salmonicida CIP 57.50.
  • Griffin1953 - A More Comprehensive Description of Bacterium Salmonicida.
  • ...............................
    • GUT MICROBIOME COMPILATIONS AND METASTUDIES FOR AEROMONAS SALMONICIDA
  • Byrd2020 - Stability and dynamics of the human gut microbiome and its association with systemic immune traits.
  • Lagier2016 - Culture of previously uncultured members of the human gut microbiota by culturomics.
  • New2022 - Collective effects of human genomic variation on microbiome function.
  • Zeller2014 - Potential of fecal microbiota for early-stage detection of colorectal cancer
  • ...............................
    • Added: January 14, 2022