Hahella ganghwensis

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

Overview

  • Hahella ganghwensis is a Gram-negative, non-spore-forming, aerobic, motile, rod-shaped bacterium. It has been detected in at least 1 gut microbiome compilation study or metastudy. The DNA G+C content is 44%. Hahella ganghwensis is probably a rare gut coloniser. (Baik2005)



  • This organism has been recovered from tidal flats from Korea. 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.
    • QUIRKS
  • Sodium required for growth.
    • GENERAL CHARACTERISTICS (Baik2005);
    Character Response
  • Substrates hydrolysed or digested:
  • aesculin; gelatin;
  • 🧂
  • Salt tolerance:
  • doesn't tolerate 0% salt; tolerates 10% salt;
  • pH
  • Acidity tolerance:
  • tolerates pH 5; tolerates pH 10; Grows optimally at pH 7-8.
  • 🌡
  • Temperature tolerance:
  • grows at 15℃; grows at 40℃; Grows optimally at 35℃.
  • ⥅
  • Substrates assimilated or utilised:
  • N-acetylglucosamine; glucose; mannose; malate;
  • Active enzymes:
  • alkaline phosphatase; acid phosphatase; catalase; esterase C4; esterase lipase C8; α-glucosidase; Leu arylamidase; lipase C14; oxidase; naphthol-ASBI-P;
    • SPECIAL FEATURES (Baik2005);
    Character Response
  • ✗
  • Metabolites not produced:
  • H₂S; indole;
  • ✗
  • VP test:
  • not active
  • ✗
  • Nitrate:
  • not reduced
  • Pigments:
  • light brown

    • Details

    GENERAL
    Lineage Physiology General Growth Tolerances Hydrol./digest./degr.
    Phylum:  Proteobacteria Class:  Gammaproteobacteria Order:  Oceanospirillales Family:  Hahellaceae Genus:  Hahella Gram stain:  neg O2 Relation.:  aerobic Spore:  No spore Motility:  Swimming Morphology:  Rod Pigment:  light brown
    Health:  Unknown
    Source:  tidal flats from Korea
    DNA G+C(%):  44
    Opt. T:  35℃
    Low T(℃):  15(+)
    Mid T(℃):  40(+)
    NaCl 0.5-2%:  0(neg)
    NaCl >6%:  10(+)
    Opt. pH:  7-8
    pH 4.2-5.9:  5(+)
    pH >8:  10(+)
    		Aesculin:  + Urea:  neg Gelatin:  +
    CARBOHYDRATE ACID FORMATION
    Monosaccharide O/F Oligosaccharide O/F Polysaccharide O/F Polyol O/F Other O/F
    Glucose:  neg
    SUBSTRATE ASSIMILATION & UTILISATION
    Monosaccharide util/assim Oligosaccharide util/assim Other carboh. util/assim Amino acid util/assim Organic acid util/assim
    Arabinose:  neg Glucose:  + Mannose:  + Rhamnose:  neg Maltose:  neg Melibiose:  neg Sucrose:  neg N_Acetyl_glucosamine:  + Amygdalin:  neg Gluconate:  neg Inositol:  neg Mannitol:  neg Adipate:  neg Caprate:  neg Citrate:  w Malate:  +
    ENZYME ACTIVITY
    Enzymes: General Enzymes: Carbohydrate Enzymes: Protein Enzymes: Arylamidases Enzymes: Esters/fats
    Oxidase:  + Catalase:  + Urease:  neg Ac-β-glcamnd:  neg α-Fucosidase:  neg α-Galactosidase:  neg β-Galactosidase:  neg α-Glucosidase:  + β-Glucosidase:  neg β-Glucuronidase:  neg α-Mannosidase:  neg ArgDH:  neg Chymotrypsin:  neg LysDC:  neg OrnDC:  neg Trypsin:  neg TrpAA:  neg CystineAA:  neg LeuAA:  + ValAA:  w AlkalineP:  + AcidP:  + Esterase(C4):  + EstLip(C8):  + Lipase(C14):  +
    METABOLITES - PRODUCTION & USE
    Fuel Usable Metabolites Metabolites Released Special Products Compounds Produced

    		H2S:  neg Indole:  neg Pigment:  light brown

    References

    SPECIFIC REFERENCES FOR HAHELLA GANGHWENSIS
  • Baik2005 - Hahella ganghwensis sp. nov., isolated from tidal flat sediment.
  • ...............................
    • GUT MICROBIOME COMPILATIONS AND METASTUDIES FOR HAHELLA GANGHWENSIS
  • De2020 - Metagenomic analysis of gut microbiome and resistome of diarrheal fecal samples from Kolkata, India, reveals the core and variable microbiota including signatures of microbial dark matter.
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    • Added: January 19, 2022