Desemzia incerta

(aka Brevibacterium incertum)

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

Overview

  • Desemzia incerta, (aka Brevibacterium incertum), is a Gram-positive, non-spore-forming, microaerophilic, motile, rod-shaped bacterium. It has been detected in at least 2 gut microbiome compilation studies or metastudies. The DNA G+C content is 40%. Desemzia incerta is probably a rare gut coloniser. (Steinhaus1941; Stackebrandt1999)



  • This organism has been recovered from human faeces and cicadas. 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.
    • GENERAL CHARACTERISTICS (Steinhaus1941); (Stackebrandt1999);
    Character Response
  • Substrates hydrolysed or digested:
  • hippurate;
  • H+
  • Acid from carbohydrates usually produced:
  • fructose; glucose; mannose; ribose; lactose; maltose; melibiose; raffinose; sucrose; trehalose;
  • Active enzymes:
  • α-galactosidase; β-glucosidase; β-glucuronidase; Gly-Trp arylamidase; α-mannosidase;
    • SPECIAL FEATURES (Stackebrandt1999);
    Character Response
  • ✓
  • Metabolites produced:
  • lactate;
  • ✗
  • Metabolites not produced:
  • H₂S; indole;
  • ✗
  • VP test:
  • not active
  • ✗
  • Nitrate:
  • not reduced
  • ✗
  • Pigments:
  • not produced

    • Details

    GENERAL
    Lineage Physiology General Growth Tolerances Hydrol./digest./degr.
    Phylum:  Firmicutes Class:  Bacilli Order:  Lactobacillales Family:  Carnobacteriaceae Genus:  Desemzia Alt. name:  Brevibacterium incertum Gram stain:  + O2 Relation.:  microaerophilic Spore:  No spore Motility:  Swimming Morphology:  Rod Pigment:  neg
    Health:  Unknown
    Source:  human faeces and cicadas
    DNA G+C(%):  40
    		Urea:  neg Gelatin:  neg Starch:  neg Casein:  neg DNA:  neg Hippurate:  +
    CARBOHYDRATE ACID FORMATION
    Monosaccharide O/F Oligosaccharide O/F Polysaccharide O/F Polyol O/F Other O/F
    L-Arabinose:  neg Fructose:  + Galactose:  neg Glucose:  + Mannose:  + Rhamnose:  neg Ribose:  + Lactose:  + Maltose:  + Melezitose:  neg Melibiose:  + Sucrose:  + Trehalose:  + Mannitol:  neg Sorbitol:  neg
    ENZYME ACTIVITY
    Enzymes: General Enzymes: Carbohydrate Enzymes: Protein Enzymes: Arylamidases Enzymes: Esters/fats
    Oxidase:  neg Catalase:  neg Urease:  neg α-Galactosidase:  + β-Galactosidase:  neg β-Glucosidase:  + β-Glucuronidase:  + α-Mannosidase:  + ArgDH:  neg GlyTrpAA:  +
    METABOLITES - PRODUCTION & USE
    Fuel Usable Metabolites Metabolites Released Special Products Compounds Produced

    		Lactate:  + H2S:  neg Indole:  neg Pigment:  neg

    References

    SPECIFIC REFERENCES FOR DESEMZIA INCERTA
  • Steinhaus1941 - A Study of the Bacteria Associated with Thirty Species of Insects.
  • Stackebrandt1999 - Reclassification of Brevibacterium incertum (Breed 1953) as Desemzia incerta gen. nov., comb. nov.
  • ...............................
    • GUT MICROBIOME COMPILATIONS AND METASTUDIES FOR DESEMZIA INCERTA
  • Lagier2016 - Culture of previously uncultured members of the human gut microbiota by culturomics.
  • 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
  • ...............................
    • Added: December 15, 2021