Herbinix hemicellulosilytica

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

Overview

  • Herbinix hemicellulosilytica is a Gram-positive, non-spore-forming, strictly anaerobic, non-motile, pleiomorph rod-shaped bacterium. It has been detected in at least 1 gut microbiome compilation study or metastudy. The DNA G+C content is 36.6%. Herbinix hemicellulosilytica is likely to be transient and not a long-term gut coloniser. (Koeck2015)



  • This organism has been recovered from a thermophilic biogas reactor. Pathogenicity status unknown, or very unlikely to be pathogenic. Likely to be transient and not a long-term gut commensal.
    • QUIRKS
  • A high minimum growth temperature (45C) suggests this is an unlikely gut coloniser.
    • GENERAL CHARACTERISTICS (Koeck2015);
    Character Response
  • Substrates hydrolysed or digested:
  • urea;
  • 🧂
  • Salt tolerance:
  • tolerates 0-0.9% salt; Grows optimally with 0-0.9(+)% salt.
  • pH
  • Acidity tolerance:
  • tolerates pH 6.5; tolerates pH 9.5; Grows optimally at pH 7.0.
  • 🌡
  • Temperature tolerance:
  • grows at 45-62℃; Grows optimally at 55℃.
  • ⥅
  • Substrates assimilated or utilised:
  • arabinose; cellubiose; cellulose; fructose; glucose; mannose; starch; sucrose; xylan;
    • SPECIAL FEATURES (Koeck2015);
    Character Response
  • ✓
  • Metabolites produced:
  • acetate; propionate (minor); ethanol;
  • ✗
  • Metabolites not produced:
  • indole;

    • Details

    GENERAL
    Lineage Physiology General Growth Tolerances Hydrol./digest./degr.
    Phylum:  Firmicutes Class:  Clostridia Order:  Eubacteriales Family:  Lachnospiraceae Genus:  Herbinix Gram stain:  + O2 Relation.:  strictly anaerobic Spore:  No spore Motility:  Sessile Morphology:  Pleiomorph rod
    Health:  Unknown
    Source:  a thermophilic biogas reactor
    DNA G+C(%):  36.6
    Opt. T:  55℃
    High T(℃):  45-62(+)
    Opt. pH:  7.0
    pH 6.0-8.0:  6.5(+)
    pH >8:  9.5(+)
    		Urea:  + Casein:  neg
    SUBSTRATE ASSIMILATION & UTILISATION
    Monosaccharide util/assim Oligosaccharide util/assim Other carboh. util/assim Amino acid util/assim Organic acid util/assim
    Arabinose:  + Fructose:  + Galactose:  neg Glucose:  + Mannose:  + Cellubiose:  + Lactose:  neg Sucrose:  + Cellulose:  + Inulin:  neg Pectin:  neg Sorbitol:  neg Starch:  + Xylan:  +
    ENZYME ACTIVITY
    Enzymes: General Enzymes: Carbohydrate Enzymes: Protein Enzymes: Arylamidases Enzymes: Esters/fats
    Catalase:  neg
    METABOLITES - PRODUCTION & USE
    Fuel Usable Metabolites Metabolites Released Special Products Compounds Produced

    		Acetate:  + Propionate:  minor(+) Ethanol:  + Indole:  neg

    References

    SPECIFIC REFERENCES FOR HERBINIX HEMICELLULOSILYTICA
  • Koeck2015 - Herbinix hemicellulosilytica gen. nov., sp. nov., a thermophilic cellulose-degrading bacterium isolated from a thermophilic biogas reactor.
  • ...............................
    • GUT MICROBIOME COMPILATIONS AND METASTUDIES FOR HERBINIX HEMICELLULOSILYTICA
  • Byrd2020 - Stability and dynamics of the human gut microbiome and its association with systemic immune traits.
  • ...............................
    • Added: May 15, 2022