Shewanella carassii

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

Overview

  • Shewanella carassii is a Gram-negative, non-spore-forming, facultatively anaerobic, motile, rod-shaped bacterium. The DNA G+C content is 52.7%. Shewanella carassii is probably a rare gut coloniser. (Fang2017)



  • This organism has been recovered from human faeces (Fang2017). Pathogenicity status unknown, or very unlikely to be pathogenic. A possible gut commensal.
    • GENERAL CHARACTERISTICS (Fang2017);
    Character Response
  • Substrates hydrolysed or digested:
  • gelatin;
  • 🧂
  • Salt tolerance:
  • tolerates 0% salt; tolerates 9% salt; Grows optimally with 1% salt.
  • 🌡
  • Temperature tolerance:
  • grows at 10℃; grows at 42℃; Grows optimally at 35℃.
  • ⥅
  • Substrates assimilated or utilised:
  • N-acetylglucosamine; caprate;
  • Active enzymes:
  • Ala-Phe-Pro arylamidase; N-Ac β-glucosaminidase; catalase; oxidase; Pro arylamidase; Tyr arylamidase;
    • SPECIAL FEATURES (Fang2017);
    Character Response
  • ✓
  • Metabolites produced:
  • H₂S;
  • ✗
  • Metabolites not produced:
  • indole;
  • ✗
  • VP test:
  • not active
  • ✓
  • Haemolysis:
  • present
  • ✓
  • NO3➔NO2:
  • reduced
  • Pigments:
  • pink-orange
    • RESPONSE TO ANTIBIOTICS (Fang2017);
    Class Active Resistant
  • Penicillins:
  • ampicillin; ampicillin-sulbactam; aztreonam; imipenem; meropenem; piperacillin; piperacillin-tazobactam;
  • Cephalosporins:
  • cefepime; cefotetan; ceftazidime; cefuroxime;
  • cefazolin;
  • Quinolines:
  • ciprofloxacin; levofloxacin;
  • Aminoglycosides:
  • amikacin; gentamicin; tobramycin;
  • Heterocycles:
  • nitrofurantoin; trimethoprim-sulfamethoxazole;

    • Details

    GENERAL
    Lineage Physiology General Growth Tolerances Hydrol./digest./degr.
    Phylum:  Proteobacteria Class:  Gammaproteobacteria Order:  Alteromonadales Family:  Shewanellaceae Genus:  Shewanella Gram stain:  neg O2 Relation.:  facultatively anaerobic Spore:  No spore Motility:  Swimming Morphology:  Rod Pigment:  pink-orange
    Health:  Unknown
    Source:  human faeces (Fang2017)
    DNA G+C(%):  52.7
    Opt. T:  35℃
    Low T(℃):  10(+)
    High T(℃):  42(+)
    NaCl 0.5-2%:  0(+)
    NaCl >6%:  9(+)
    		Aesculin:  neg Urea:  neg Gelatin:  +
    CARBOHYDRATE ACID FORMATION
    Monosaccharide O/F Oligosaccharide O/F Polysaccharide O/F Polyol O/F Other O/F
    L-Arabinose:  neg Glucose:  neg Rhamnose:  neg Melibiose:  neg Sucrose:  neg Amygdalin:  neg Inositol:  neg Mannitol:  neg Sorbitol:  neg
    SUBSTRATE ASSIMILATION & UTILISATION
    Monosaccharide util/assim Oligosaccharide util/assim Other carboh. util/assim Amino acid util/assim Organic acid util/assim
    L-Arabinose:  neg Glucose:  neg Mannose:  neg Maltose:  neg N_Acetyl_glucosamine:  + Gluconate:  neg Mannitol:  neg Adipate:  neg Caprate:  + Citrate:  neg Malate:  w Phenylacetate:  neg
    ENZYME ACTIVITY
    Enzymes: General Enzymes: Carbohydrate Enzymes: Protein Enzymes: Arylamidases Enzymes: Esters/fats
    Oxidase:  + Catalase:  + Urease:  neg Ac-β-glcamnd:  + β-Galactosidase:  neg ArgDH:  neg γ-Glu transf.:  neg LysDC:  neg OrnDC:  neg TrpAA:  neg AlaPheProAA:  + ProAA:  + PyrrolidAA:  vr TyrAA:  +
    METABOLITES - PRODUCTION & USE
    Fuel Usable Metabolites Metabolites Released Special Products Compounds Produced

    		H2S:  + Indole:  neg Pigment:  pink-orange
    ANTIBIOTICS ℞
    Penicillins & Penems (μg/mL) Cephalosporins (μg/mL) Aminoglycosides (μg/mL) Macrolides (μg/mL) Quinolones (μg/mL)
    ampicillin:  Sens
    amp-sulb:  Sens
    aztreonam:  Sens
    penicillin:  Var
    piperacillin:  Sens
    piper-taz:  Sens
    imipenem:  Sens
    meropenem:  Sens
    cefazolin:  Res
    cefepime:  Sens
    cefotetan:  Sens
    ceftazidime:  Sens
    cefuroxime:  Sens
    amikacin:  Sens
    gentamicin:  Sens
    tobramycin:  Sens
    ciprofloxacin:  Sens
    levofloxacin:  Sens
    Tetracyclines (μg/mL) Vancomycin Class (μg/mL) Polypep/ketides (μg/mL) Heterocycles (μg/mL) Other (μg/mL)
    nitrofurantoin:  Sens
    SXT:  Sens
    clindamycin:  I

    References

    SPECIFIC REFERENCES FOR SHEWANELLA CARASSII
  • Fang2017 - Shewanella carassii sp. nov., isolated from surface swabs of crucian carp and faeces of a diarrhoea patient.
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    • Added: August 18, 2021