Hungatella xylanolytica

(aka Bacteroides xylanolyticus)

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

Overview

  • Hungatella xylanolytica, (aka Bacteroides xylanolyticus), is a Gram-negative, non-spore-forming, strictly anaerobic, motile, rod-shaped bacterium. It has been detected in at least 1 gut microbiome compilation study or metastudy. The DNA G+C content is 35%. Hungatella xylanolytica is probably a rare gut coloniser. (ScholtenKoerselman1986)



  • This organism has been recovered from fermenting cattle manure, a clinical specimen (blood - CCUG) and human faeces (Bilen2018e). The risk classification (www.baua.de) for this organism is 1, i.e., low risk of infection and spread. Is a rare opportunistic pathogen. A possible gut commensal.
    • GENERAL CHARACTERISTICS (ScholtenKoerselman1986);
    Character Response
  • Substrates hydrolysed or digested:
  • gelatin;
  • pH
  • Acidity tolerance:
  • Grows optimally at pH 7.0.
  • 🌡
  • Temperature tolerance:
  • grows at 15℃; grows at 40℃; Grows optimally at 30℃.
  • H+
  • Acid from carbohydrates usually produced:
  • arabinose; glucose; mannose; rhamnose; xylose; xylan; cellubiose; lactose; maltose; trehalose; salicin;
    • SPECIAL FEATURES (ScholtenKoerselman1986);
    Character Response
  • ✓
  • Metabolites produced:
  • acetate; ethanol; H₂S; CO₂; H₂;
  • ✗
  • Metabolites not produced:
  • indole;

    • Details

    GENERAL
    Lineage Physiology General Growth Tolerances Hydrol./digest./degr.
    Phylum:  Firmicutes Class:  Clostridia Order:  Eubacteriales Family:  Clostridiaceae Genus:  Hungatella Alt. name:  Bacteroides xylanolyticus Gram stain:  neg O2 Relation.:  strictly anaerobic Spore:  No spore Motility:  Swimming Morphology:  Rod
    Health:  Unknown
    Source:  fermenting cattle manure, a clinical specimen (blood - CCUG) and human faeces (Bilen2018e)
    DNA G+C(%):  35
    Opt. T:  30℃
    Low T(℃):  15(+)
    Mid T(℃):  40(+)
    Opt. pH:  7.0
    		Urea:  neg Gelatin:  +
    CARBOHYDRATE ACID FORMATION
    Monosaccharide O/F Oligosaccharide O/F Polysaccharide O/F Polyol O/F Other O/F
    Arabinose:  + Fructose:  neg Glucose:  + Mannose:  + Rhamnose:  + Xylose:  + Cellubiose:  + Lactose:  + Maltose:  + Sucrose:  neg Trehalose:  + Cellulose:  neg Xylan:  + Salicin:  +
    ENZYME ACTIVITY
    Enzymes: General Enzymes: Carbohydrate Enzymes: Protein Enzymes: Arylamidases Enzymes: Esters/fats
    Catalase:  neg Urease:  neg
    METABOLITES - PRODUCTION & USE
    Fuel Usable Metabolites Metabolites Released Special Products Compounds Produced

    		Acetate:  + Ethanol:  + H2S:  + CO2:  + H2:  + Indole:  neg

    References

    SPECIFIC REFERENCES FOR HUNGATELLA XYLANOLYTICA
  • Chen2019a - Association between fecal microbiota and generalized anxiety disorder: Severity and early treatment response
  • ElMouzan2018 - Microbiota profile in new-onset pediatric Crohn's disease: data from a non-Western population
  • ScholtenKoerselman1986 - Bacteroides xylanolyticus sp. nov., a xylanolytic bacterium from methane producing cattle manure.
  • ...............................
    • GUT MICROBIOME COMPILATIONS AND METASTUDIES FOR HUNGATELLA XYLANOLYTICA
  • Lagier2016 - Culture of previously uncultured members of the human gut microbiota by culturomics.
  • ...............................
    • GENERAL REFERENCES FOR HUNGATELLA XYLANOLYTICA
  • Bilen2018e - Description of the human gut microbiota by culturomics
  • GarciaLopez2019 - Analysis of 1,000 Type-Strain Genomes Improves Taxonomic Classification of Bacteroidetes.
    • Added: January 05, 2022