Aeromonas taiwanensis

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

Overview

  • Aeromonas taiwanensis is a Gram-negative, non-spore-forming, facultatively anaerobic, motile, rod-shaped bacterium. It has been detected in at least 1 gut microbiome compilation study or metastudy. The DNA G+C content is 62.8%. Aeromonas taiwanensis is unlikely to be a gut coloniser. (Alperi2010)



  • This organism has been recovered from clinical sources (wound). Can cause opportunistic infections, particularly in immunocompromised people. Likely to be transient and not a long-term gut commensal.
    • GENERAL CHARACTERISTICS (Alperi2010);
    Character Response
  • Substrates hydrolysed or digested:
  • aesculin; DNA; gelatin; starch;
  • 🧂
  • Salt tolerance:
  • tolerates 0% salt; doesn't tolerate 6% salt;
  • pH
  • Acidity tolerance:
  • doesn't tolerate pH 4.5; Grows optimally at pH 8.5-9.5.
  • 🌡
  • Temperature tolerance:
  • doesn't grow at 4℃; grows at 36℃; doesn't grow at 41℃; Grows optimally at 30℃.
  • H+
  • Acid from carbohydrates usually produced:
  • L-arabinose; fructose; galactose; glucose; ribose; amygdalin; maltose; raffinose; sucrose; trehalose; glycerol; mannitol; N-Ac glucosamine; salicin;
  • ⥅
  • Substrates assimilated or utilised:
  • N-acetylglucosamine; L-arabinose; gluconate; glucose; glycogen; mannitol; caprate; citrate; malate;
  • Active enzymes:
  • arginine dihydrolase; catalase; β-galactosidase; oxidase;
    • SPECIAL FEATURES (Alperi2010);
    Character Response
  • ✓
  • Metabolites produced:
  • indole;
  • ✗
  • Metabolites not produced:
  • H₂S;
  • ✗
  • VP test:
  • not active
  • ✓
  • ONPG test:
  • active
  • ✗
  • Haemolysis:
  • absent
  • ✓
  • NO3➔NO2:
  • reduced
    • RESPONSE TO ANTIBIOTICS (Alperi2010);
    Class Active Resistant
  • Penicillins:
  • aztreonam; imipenem; piperacillin; piperacillin-tazobactam;
  • amoxicillin; amoxicillin-clavulanic acid; ticarcillin; ticarcillin-clavulanic acid;
  • Cephalosporins:
  • cefepime; cefoperazone; cefotaxime; cefoxitin; ceftazidime;
  • cephalothin;
  • Macrolides:
  • erythromycin;
  • Tetracyclines:
  • tetracycline;
  • Quinolines:
  • ciprofloxacin; nalidixic-acid;
  • Aminoglycosides:
  • amikacin; gentamicin; kanamycin; tobramycin;
  • Heterocycles:
  • chloramphenicol; fosfomycin; trimethoprim-sulfamethoxazole;

    • 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:  Swimming Morphology:  Rod
    Health:  Unknown
    Source:  clinical sources (wound)
    DNA G+C(%):  62.8
    Opt. T:  30℃
    Low T(℃):  4(neg)
    Mid T(℃):  36(+)
    High T(℃):  41(neg)
    NaCl 0.5-2%:  0(+)
    NaCl >6%:  6(neg)
    Opt. pH:  8.5-9.5
    pH 4.2-5.9:  4.5(neg)
    		Aesculin:  + Urea:  neg Gelatin:  + Starch:  + DNA:  +
    CARBOHYDRATE ACID FORMATION
    Monosaccharide O/F Oligosaccharide O/F Polysaccharide O/F Polyol O/F Other O/F
    D-Arabinose:  neg L-Arabinose:  + Fructose:  + Fucose:  neg D-Fucose:  neg Galactose:  + Glucose:  + Mannose:  neg D-Lyxose:  neg Rhamnose:  neg Ribose:  + Sorbose:  neg D-Tagatose:  neg Xylose:  neg L-Xylose:  neg Cellubiose:  neg Gentiobiose:  neg Lactose:  neg Maltose:  + Melezitose:  neg Melibiose:  neg Sucrose:  + Trehalose:  + Turanose:  neg Amygdalin:  + Inulin:  neg Adonitol:  neg D-Arabitol:  neg L-Arabitol:  neg Dulcitol:  neg Erythritol:  neg Glycerol:  + Inositol:  neg Mannitol:  + Sorbitol:  neg Xylitol:  neg Me-α-D-Glc:  neg Me-α-D-Mann:  neg Me-Xyloside:  neg NAc-α-GA:  + Salicin:  +
    SUBSTRATE ASSIMILATION & UTILISATION
    Monosaccharide util/assim Oligosaccharide util/assim Other carboh. util/assim Amino acid util/assim Organic acid util/assim
    L-Arabinose:  + Glucose:  + Mannose:  neg N_Acetyl_glucosamine:  + Gluconate:  + Glycogen:  + Mannitol:  + Adipate:  neg Caprate:  + Citrate:  + 2-Ketogluconate:  neg 5-Ketogluconate:  neg Malate:  + Phenylacetate:  neg
    ENZYME ACTIVITY
    Enzymes: General Enzymes: Carbohydrate Enzymes: Protein Enzymes: Arylamidases Enzymes: Esters/fats
    Oxidase:  + Catalase:  + Urease:  neg β-Galactosidase:  + ArgDH:  + LysDC:  neg OrnDC:  neg
    METABOLITES - PRODUCTION & USE
    Fuel Usable Metabolites Metabolites Released Special Products Compounds Produced

    		H2S:  neg Indole:  +
    ANTIBIOTICS ℞
    Penicillins & Penems (μg/mL) Cephalosporins (μg/mL) Aminoglycosides (μg/mL) Macrolides (μg/mL) Quinolones (μg/mL)
    amoxicillin:  Res
    Augmentin:  Res
    aztreonam:  Sens
    piperacillin:  Sens
    piper-taz:  Sens
    ticarcillin:  Res
    tica-clav:  Res
    imipenem:  Sens
    cefepime:  Sens
    cefoperazone:  Sens
    cefotaxime:  Sens
    cefoxitin:  Sens
    ceftazidime:  Sens
    cephalothin:  Res
    amikacin:  Sens
    gentamicin:  Sens
    kanamycin:  Sens
    streptomycin:  Var
    tobramycin:  Sens
    erythromycin:  Res
    ciprofloxacin:  Sens
    nalidixic-acid:  Sens
    Tetracyclines (μg/mL) Vancomycin Class (μg/mL) Polypep/ketides (μg/mL) Heterocycles (μg/mL) Other (μg/mL)
    tetracycline:  Sens
    chloramphenicol:  Sens
    fosfomycin:  Sens
    SXT:  Sens

    References

    SPECIFIC REFERENCES FOR AEROMONAS TAIWANENSIS
  • Alperi2010 - Aeromonas taiwanensis sp. nov. and Aeromonas sanarellii sp. nov., clinical species from Taiwan.
  • ...............................
    • GUT MICROBIOME COMPILATIONS AND METASTUDIES FOR AEROMONAS TAIWANENSIS
  • Lagier2016 - Culture of previously uncultured members of the human gut microbiota by culturomics.
  • ...............................
    • Added: January 14, 2022