Tractidigestivibacter scatoligenes

(aka Olsenella scatoligenes)

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

Overview

  • Tractidigestivibacter scatoligenes, (aka Olsenella scatoligenes), is a Gram-positive, non-spore-forming, strictly anaerobic, non-motile, coccobacillus bacterium. It has been detected in at least 3 gut microbiome compilation studies or metastudies. The DNA G+C content is 62.1%. Tractidigestivibacter scatoligenes is probably a rare gut coloniser. (Zgheib2021; Li2015)



  • This organism has been recovered from pig and human faeces. Pathogenicity status unknown, or very unlikely to be pathogenic. A possible gut commensal.
    • QUIRKS
  • Produces skatole.
    • GENERAL CHARACTERISTICS (Li2015);
    Character Response
  • Substrates hydrolysed or digested:
  • aesculin;
  • 🌡
  • Temperature tolerance:
  • grows at 37℃;
  • H+
  • Acid from carbohydrates usually produced:
  • glucose; mannose; rhamnose; cellubiose; lactose; maltose; sucrose; salicin;
  • Active enzymes:
  • Ala arylamidase; alkaline phosphatase; acid phosphatase; Arg arylamidase; cystine arylamidase; esterase lipase C8; β-galactosidase; α-glucosidase; β-glucosidase; glutamic acid decarboxylase; Glu-Glu arylamidase; Gly arylamidase; His arylamidase; Leu arylamidase; Leu-Gly arylamidase; Phe arylamidase; Pro arylamidase; pyroGlu arylamidase; pyrrolidine arylamidase; Ser arylamidase; Tyr arylamidase; Val arylamidase; naphthol-ASBI-P;
    • SPECIAL FEATURES (Li2015);
    Character Response
  • ✓
  • Metabolites produced:
  • formate (minor); acetate (minor); lactate (major);
  • ✗
  • Metabolites not produced:
  • H₂; indole;
  • ✗
  • VP test:
  • not active
  • ✗
  • Nitrate:
  • not reduced
  • NOTES

    Produces skatole from IAA, but not TRP.

    • Details

    GENERAL
    Lineage Physiology General Growth Tolerances Hydrol./digest./degr.
    Phylum:  Actinobacteria Class:  Coriobacteriia Order:  Coriobacteriales Family:  Atopobiaceae Genus:  Tractidigestivibacter Alt. name:  Olsenella scatoligenes Gram stain:  + O2 Relation.:  strictly anaerobic Spore:  No spore Motility:  Sessile Morphology:  Coccobacillus
    Health:  Unknown
    Source:  pig and human faeces
    DNA G+C(%):  62.1
    Mid T(℃):  37(+)
    		Aesculin:  + Urea:  neg Gelatin:  neg
    CARBOHYDRATE ACID FORMATION
    Monosaccharide O/F Oligosaccharide O/F Polysaccharide O/F Polyol O/F Other O/F
    Arabinose:  neg Glucose:  + Mannose:  + Rhamnose:  + Xylose:  neg Cellubiose:  + Lactose:  + Maltose:  + Melezitose:  neg Sucrose:  + Trehalose:  neg Glycerol:  neg Mannitol:  neg Sorbitol:  neg Salicin:  +
    ENZYME ACTIVITY
    Enzymes: General Enzymes: Carbohydrate Enzymes: Protein Enzymes: Arylamidases Enzymes: Esters/fats
    Catalase:  neg Urease:  neg α-Arab:  neg Ac-β-glcamnd:  neg α-Fucosidase:  neg α-Galactosidase:  neg β-Galactosidase:  + α-Glucosidase:  + β-Glucosidase:  + β-Glucuronidase:  neg α-Mannosidase:  neg ArgDH:  neg Chymotrypsin:  neg GluDC:  + Trypsin:  neg AlanineAA:  + ArgAA:  + CystineAA:  + GluGluAA:  + GlyAA:  + HisAA:  + LeuAA:  + LeuGlyAA:  + ProAA:  + PyrrolidAA:  + PheAA:  + PyrogluAA:  + SerAA:  + TyrAA:  + ValAA:  + AlkalineP:  + AcidP:  + Esterase(C4):  neg EstLip(C8):  + Lipase:  neg
    METABOLITES - PRODUCTION & USE
    Fuel Usable Metabolites Metabolites Released Special Products Compounds Produced

    		Formate:  minor(+) Acetate:  minor(+) Lactate:  Major(+) H2:  neg Indole:  neg

    References

    SPECIFIC REFERENCES FOR TRACTIDIGESTIVIBACTER SCATOLIGENES
  • Zgheib2021 - New human-associated species of the family Atopobiaceae and proposal to reclassify members of the genus Olsenella.
  • Ishaq2017 - Molecular estimation of alteration in intestinal microbial composition in Hashimoto's thyroiditis patients
  • Li2015 - Olsenella scatoligenes sp. nov., a 3-methylindole- (skatole) and 4-methylphenol- (p-cresol) producing bacterium isolated from pig faeces.
  • ...............................
    • GUT MICROBIOME COMPILATIONS AND METASTUDIES FOR TRACTIDIGESTIVIBACTER SCATOLIGENES
  • Byrd2020 - Stability and dynamics of the human gut microbiome and its association with systemic immune traits.
  • 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
  • Zou2019 - 1,520 reference genomes from cultivated human gut bacteria enable functional microbiome analyses.
  • ...............................
    • Added: December 15, 2021