Enhydrobacter aerosaccus

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

Overview

  • Enhydrobacter aerosaccus is a Gram-negative, non-spore-forming, facultatively anaerobic, non-motile, rod-shaped bacterium. It has been detected in at least 2 gut microbiome compilation studies or metastudies. The DNA G+C content is 63.3%. Enhydrobacter aerosaccus is probably a rare gut coloniser. (Staley1987; Kawamura2012)



  • This organism has been recovered from human faeces and oxygen-depleted eutrophic lake. 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. A possible gut commensal.
    • GENERAL CHARACTERISTICS (Staley1987);
    Character Response
  • 🧂
  • Salt tolerance:
  • tolerates 0-1% salt;
  • pH
  • Acidity tolerance:
  • tolerates pH 5; tolerates pH 9.5;
  • 🌡
  • Temperature tolerance:
  • grows at 20℃; grows at 41℃; Grows optimally at 37-39℃.
  • H+
  • Acid from carbohydrates usually produced:
  • glucose;
  • ⥅
  • Substrates assimilated or utilised:
  • L-arabinose; fructose; fucose; galactose; glucose; glycerol; inulin; maltose; mannose; rhamnose; ribose; sorbose; sucrose; xylose; acetate; citrate; formate; fumarate; lactate; malate; pyruvate; succinate; meso-tartrate; Casamino acids;
  • Active enzymes:
  • arginine decarboxylase; catalase; lycine decarboxylase; ornithine decarboxylase; oxidase;
    • SPECIAL FEATURES (Staley1987);
    Character Response
  • ✗
  • Metabolites not produced:
  • indole;
  • ✓
  • Nitrate:
  • reduced

    • Details

    GENERAL
    Lineage Physiology General Growth Tolerances Hydrol./digest./degr.
    Phylum:  Proteobacteria Class:  Alphaproteobacteria Order:  Hyphomicrobiales Family:  Hyphomicrobiales incertae sedis Genus:  Enhydrobacter Gram stain:  neg O2 Relation.:  facultatively anaerobic Spore:  No spore Motility:  Sessile Morphology:  Rod
    Health:  Unknown
    Source:  human faeces and oxygen-depleted eutrophic lake
    DNA G+C(%):  63.3
    Opt. T:  37-39℃
    Lower T(℃):  20(+)
    High T(℃):  41(+)
    NaCl 0.5-2%:  0-1(+)
    pH 4.2-5.9:  5(+)
    pH >8:  9.5(+)
    		DNA:  neg Tween:  80(+)
    CARBOHYDRATE ACID FORMATION
    Monosaccharide O/F Oligosaccharide O/F Polysaccharide O/F Polyol O/F Other O/F
    Glucose:  +
    SUBSTRATE ASSIMILATION & UTILISATION
    Monosaccharide util/assim Oligosaccharide util/assim Other carboh. util/assim Amino acid util/assim Organic acid util/assim
    L-Arabinose:  + Fructose:  + Fucose:  + Galactose:  + Glucose:  + Mannose:  + Rhamnose:  + Ribose:  + Sorbose:  + Xylose:  + Cellubiose:  neg Lactose:  neg Maltose:  + Melezitose:  neg Melibiose:  neg Raffinose:  neg Sucrose:  + Trehalose:  neg Adonitol:  neg Amygdalin:  neg Cellulose:  neg Dextrin:  neg Dulcitol:  neg Erythritol:  neg Glycerol:  + Inositol:  neg Inulin:  + Mannitol:  neg Methanol:  neg Pectin:  neg Salicin:  neg Sorbitol:  neg Starch:  neg Acetate:  + Benzoate:  neg Butyrate:  neg Citrate:  + Formate:  + Fumarate:  + Lactate:  + Malate:  + Malonate:  neg Pyruvate:  + Succinate:  +
    ENZYME ACTIVITY
    Enzymes: General Enzymes: Carbohydrate Enzymes: Protein Enzymes: Arylamidases Enzymes: Esters/fats
    Oxidase:  + Catalase:  + β-Galactosidase:  neg ArgDC:  + LysDC:  + OrnDC:  +
    METABOLITES - PRODUCTION & USE
    Fuel Usable Metabolites Metabolites Released Special Products Compounds Produced

    		Indole:  neg

    References

    SPECIFIC REFERENCES FOR ENHYDROBACTER AEROSACCUS
  • Staley1987 - Enhydrobacter aerosaccus gen. nov., sp. nov., a Gas-Vacuolated, Facultatively Anaerobic, Heterotrophic Rod
  • Kawamura2012 - Genus Enhydrobacter Staley et al. 1987 should be recognized as a member of the family Rhodospirillaceae within the class Alphaproteobacteria.
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    • GUT MICROBIOME COMPILATIONS AND METASTUDIES FOR ENHYDROBACTER AEROSACCUS
  • Hu2019 - The Gut Microbiome Signatures Discriminate Healthy From Pulmonary Tuberculosis Patients
  • Yang2020 - Species-Level Analysis of Human Gut Microbiota With Metataxonomics.
  • Yang2020a - Establishing high-accuracy biomarkers for colorectal cancer by comparing fecal microbiomes in patients with healthy families
  • ...............................
    • Added: December 15, 2021