Salmonella enterica subsp. enterica serovar Typhi

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

Overview

  • Salmonella enterica subsp. enterica serovar Typhi 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. The DNA G+C content is 50-53%. Salmonella enterica subsp. enterica serovar Typhi is probably a rare gut coloniser. (Popoff2005Bergey)



  • This organism has been recovered from human faeces. Only pathogenic in humans, causing typhoid fever. The risk classification (www.baua.de) for this organism is 3, i.e., high risk of individual infection, and some risk of spread (notes: vaccine available). This is a dangerous pathogen. Unlikely to be a commensal. Robust growth can have negative consequences for gut health.
    • GENERAL CHARACTERISTICS (Popoff2005Bergey);
    Character Response
  • H+
  • Acid from carbohydrates usually produced:
  • arabinose; L-arabinose; glucose; mannose; rhamnose; maltose; melibiose; trehalose; dulcitol; mannitol; sorbitol;
  • ±
  • Strain-dependent acid from carbs:
  • xylose;
  • ⥅
  • Substrates assimilated or utilised:
  • tyrosine; acetate; mucate; L-tartrate;
  • Active enzymes:
  • arginine dihydrolase; γ-Glu transferase; lycine decarboxylase; ornithine decarboxylase;
  • ±
  • Strain-dependent active enzymes:
  • β-glucuronidase;
    • SPECIAL FEATURES (Popoff2005Bergey);
    Character Response
  • ✓
  • Metabolites produced:
  • H₂S;
  • ✗
  • Metabolites not produced:
  • indole;
  • ✗
  • VP test:
  • not active
  • ✗
  • ONPG test:
  • not active
  • ✓
  • NO3➔NO2:
  • reduced

    • Details

    GENERAL
    Lineage Physiology General Growth Tolerances Hydrol./digest./degr.
    Phylum:  Proteobacteria Class:  Gammaproteobacteria Order:  Enterobacterales Family:  Enterobacteriaceae Genus:  Salmonella Gram stain:  neg O2 Relation.:  facultatively anaerobic Spore:  No spore Motility:  Swimming Morphology:  Rod
    Health:   Negative
    Source:  human faeces. Only pathogenic in humans, causing typhoid fever
    DNA G+C(%):  50-53
    		Aesculin:  neg Urea:  neg Gelatin:  neg DNA:  neg
    CARBOHYDRATE ACID FORMATION
    Monosaccharide O/F Oligosaccharide O/F Polysaccharide O/F Polyol O/F Other O/F
    Arabinose:  + L-Arabinose:  + Glucose:  + Mannose:  + Rhamnose:  + Xylose:  d Cellubiose:  neg Lactose:  neg Maltose:  + Melibiose:  + Sucrose:  neg Trehalose:  + Adonitol:  neg D-Arabitol:  neg Dulcitol:  + Erythritol:  neg Glycerol:  neg Mannitol:  + Sorbitol:  + 2-Ketogluconate:  neg Me-α-D-Glc:  neg Salicin:  neg
    SUBSTRATE ASSIMILATION & UTILISATION
    Monosaccharide util/assim Oligosaccharide util/assim Other carboh. util/assim Amino acid util/assim Organic acid util/assim
    Tyr:  + Acetate:  + Citrate:  neg Malonate:  neg Mucate:  + L-Tartrate:  +
    ENZYME ACTIVITY
    Enzymes: General Enzymes: Carbohydrate Enzymes: Protein Enzymes: Arylamidases Enzymes: Esters/fats
    Oxidase:  neg Urease:  neg β-Galactosidase:  neg β-Glucuronidase:  d ArgDH:  d(+) γ-Glu transf.:  + LysDC:  + OrnDC:  + Phe deaminase:  neg TrpAA:  neg DNAse:  neg Lipase:  neg
    METABOLITES - PRODUCTION & USE
    Fuel Usable Metabolites Metabolites Released Special Products Compounds Produced

    		H2S:  + Indole:  neg

    References

    SPECIFIC REFERENCES FOR SALMONELLA ENTERICA SUBSP. ENTERICA SEROVAR TYPHI
  • Popoff2005Bergey - Bergey's manual of systematic bacteriology. Vol. 2, The Gammaproteobacteria Part B. Family Enterobacteriaceae, Genus XXXIII. Salmonella
  • ...............................
    • GUT MICROBIOME COMPILATIONS AND METASTUDIES FOR SALMONELLA ENTERICA SUBSP. ENTERICA SEROVAR TYPHI
  • Lagier2016 - Culture of previously uncultured members of the human gut microbiota by culturomics.
  • Tyakht2013 - Human gut microbiota community structures in urban and rural populations in Russia.
  • ...............................
    • Added: February 09, 2022