Haemophilus parahaemolyticus

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

Overview

  • Haemophilus parahaemolyticus is a Gram-negative, non-spore-forming, facultatively anaerobic, non-motile, pleiomorph rod-shaped bacterium. It has been detected in at least 3 gut microbiome compilation studies or metastudies. The DNA G+C content is 40-41%. Haemophilus parahaemolyticus is probably a common, although minor, coloniser of the gut. (Kilian2005Bergey)



  • This organism has been recovered from throat and clinical sources (oral infection, pharyngitis, endocarditis). The risk classification (www.baua.de) for this organism is 2, i.e., risk of individual infection, but low risk of spread. Is a known human pathogen. A possible gut commensal.
    • QUIRKS
  • In 17% of Europeans (unseenbio.com). Minor coloniser.
    • GENERAL CHARACTERISTICS (Kilian2005Bergey);
    Character Response
  • Substrates hydrolysed or digested:
  • urea;
  • H+
  • Acid from carbohydrates usually produced:
  • fructose; glucose; maltose; sucrose;
  • ±
  • Strain-dependent acid from carbs:
  • galactose;
  • Active enzymes:
  • alkaline phosphatase; oxidase; urease;
  • ±
  • Strain-dependent active enzymes:
  • catalase; xylosidase;
    • SPECIAL FEATURES (Kilian2005Bergey);
    Character Response
  • ✓
  • Metabolites produced:
  • H₂S;
  • ✗
  • Metabolites not produced:
  • indole;
  • Haemolysis:
  • beta
  • ✓
  • Nitrate:
  • reduced
  • ✓
  • Nitrite:
  • reduced

    • Details

    GENERAL
    Lineage Physiology General Growth Tolerances Hydrol./digest./degr.
    Phylum:  Proteobacteria Class:  Gammaproteobacteria Order:  Pasteurellales Family:  Pasteurellaceae Genus:  Haemophilus Gram stain:  neg O2 Relation.:  facultatively anaerobic Spore:  No spore Motility:  Sessile Morphology:  Pleiomorph rod
    Health:  Unknown
    Source:  throat and clinical sources (oral infection, pharyngitis, endocarditis)
    DNA G+C(%):  40-41
    		Urea:  +
    CARBOHYDRATE ACID FORMATION
    Monosaccharide O/F Oligosaccharide O/F Polysaccharide O/F Polyol O/F Other O/F
    L-Arabinose:  neg Fructose:  + Galactose:  d Glucose:  + Mannose:  neg Rhamnose:  neg Ribose:  neg Sorbose:  neg Xylose:  neg Cellubiose:  neg Lactose:  neg Maltose:  + Melezitose:  neg Melibiose:  neg Sucrose:  + Trehalose:  neg Aesculin:  neg Inulin:  neg Adonitol:  neg Dulcitol:  neg Erythritol:  neg Glycerol:  neg Inositol:  neg Mannitol:  neg Sorbitol:  neg Xylitol:  neg Salicin:  neg
    ENZYME ACTIVITY
    Enzymes: General Enzymes: Carbohydrate Enzymes: Protein Enzymes: Arylamidases Enzymes: Esters/fats
    Oxidase:  + Catalase:  d Urease:  + α-Fucosidase:  neg α-Galactosidase:  neg β-Galactosidase:  neg α-Glucosidase:  neg β-Glucosidase:  neg β-Glucuronidase:  neg α-Mannosidase:  neg Xylosidase:  d ArgDH:  neg LysDC:  neg OrnDC:  neg AlkalineP:  +
    METABOLITES - PRODUCTION & USE
    Fuel Usable Metabolites Metabolites Released Special Products Compounds Produced

    		H2S:  + Indole:  neg

    References

    SPECIFIC REFERENCES FOR HAEMOPHILUS PARAHAEMOLYTICUS
  • Kilian2005Bergey - Bergey's manual of systematic bacteriology. Vol. 2, The Gammaproteobacteria Part B. Family Pasteurellaceae, Genus III. Haemophilus
  • ...............................
    • GUT MICROBIOME COMPILATIONS AND METASTUDIES FOR HAEMOPHILUS PARAHAEMOLYTICUS
  • Byrd2020 - Stability and dynamics of the human gut microbiome and its association with systemic immune traits.
  • New2022 - Collective effects of human genomic variation on microbiome function.
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    • Added: March 18, 2022