Halanaerobaculum tunisiense

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

Overview

  • Halanaerobaculum tunisiense is a Gram-negative, non-spore-forming, strictly anaerobic, non-motile, rod-shaped bacterium. It has been detected in at least 1 gut microbiome compilation study or metastudy. The DNA G+C content is 34.3%. Halanaerobaculum tunisiense is likely to be transient and not a long-term gut coloniser. (Hedi2008)



  • This organism has been recovered from human faeces, and hypersaline lake. Pathogenicity status unknown, or very unlikely to be pathogenic. Likely to be transient and not a long-term gut commensal.
    • QUIRKS
  • Very high salt concentration required for optimum growth, so unlikely gut coloniser.
    • GENERAL CHARACTERISTICS (Hedi2008);
    Character Response
  • 🧂
  • Salt tolerance:
  • tolerates 14-30% salt; Grows optimally with 25% salt.
  • pH
  • Acidity tolerance:
  • tolerates pH 5.9; tolerates pH 8.4; Grows optimally at pH 7.2-7.4.
  • 🌡
  • Temperature tolerance:
  • grows at 30℃; grows at 50℃; Grows optimally at 42℃.
  • H+
  • Acid from carbohydrates usually produced:
  • galactose; glucose; mannose; starch; cellubiose; maltose; sucrose;
  • ⥅
  • Substrates assimilated or utilised:
  • cellubiose; galactose; glucose; maltose; mannose; starch; sucrose; pyruvate;
    • SPECIAL FEATURES (Hedi2008);
    Character Response
  • ✓
  • Metabolites produced:
  • acetate; butyrate; lactate; COâ‚‚; Hâ‚‚;
  • ✗
  • Nitrate:
  • not reduced
  • ✗
  • Nitrite:
  • not reduced
  • ✗
  • Sulfate:
  • not reduced
  • ✗
  • Thiosulfate:
  • not reduced

  • Lagier, J.-C., Armougom, F., Million, M., Hugon, P., Pagnier, I., Robert, C., Bittar, F., Fournous, G., Gimenez, G., Maraninchi, M., Trape, J.-F., Koonin, E. V., La Scola, B., & Raoult, D. (2012). Microbial culturomics: paradigm shift in the human gut microbiome study. Clinical Microbiology and Infection: The Official Publication of the European Society of Clinical Microbiology and Infectious Diseases, 18(12), 1185–1193.

    • Details

    GENERAL
    Lineage Physiology General Growth Tolerances Hydrol./digest./degr.
    Phylum:  Firmicutes Class:  Clostridia Order:  Halanaerobiales Family:  Halobacteroidaceae Genus:  Halanaerobaculum Gram stain:  neg O2 Relation.:  strictly anaerobic Spore:  No spore Motility:  Sessile Morphology:  Rod
    Health:  Unknown
    Source:  human faeces, and hypersaline lake
    DNA G+C(%):  34.3
    Opt. T:  42℃
    Lower T(℃):  30(+)
    High T(℃):  50(+)
    NaCl >6%:  14-30(+)
    Opt. pH:  7.2-7.4
    pH 4.2-5.9:  5.9(+)
    pH >8:  8.4(+)
    CARBOHYDRATE ACID FORMATION
    Monosaccharide O/F Oligosaccharide O/F Polysaccharide O/F Polyol O/F Other O/F
    Galactose:  + Glucose:  + Mannose:  + Cellubiose:  + Maltose:  + Sucrose:  + Starch:  +
    SUBSTRATE ASSIMILATION & UTILISATION
    Monosaccharide util/assim Oligosaccharide util/assim Other carboh. util/assim Amino acid util/assim Organic acid util/assim
    Fructose:  neg Galactose:  + Glucose:  + Mannose:  + Ribose:  neg Xylose:  neg Cellubiose:  + Maltose:  + Raffinose:  neg Sucrose:  + Mannitol:  neg Starch:  + Acetate:  neg Fumarate:  neg Lactate:  neg Pyruvate:  + Succinate:  neg

    References

    SPECIFIC REFERENCES FOR HALANAEROBACULUM TUNISIENSE
  • Hedi2008 - Characterization of Halanaerobaculum tunisiense gen. nov., sp. nov., a new halophilic fermentative, strictly anaerobic bacterium isolated from a hypersaline lake in Tunisia.
  • ...............................
    • GUT MICROBIOME COMPILATIONS AND METASTUDIES FOR HALANAEROBACULUM TUNISIENSE
  • RajilicStojanovic2014 - The first 1000 cultured species of the human gastrointestinal microbiota.
  • ...............................
    • GENERAL REFERENCES FOR HALANAEROBACULUM TUNISIENSE
  • Ludwig2009 - Revised road map to the phylum Firmicutes.
    • Added: April 08, 2021