Caproicibacter fermentans

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

Overview

  • Caproicibacter fermentans is a Gram-negative, 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 51.3%. Caproicibacter fermentans is probably a rare gut coloniser. (Flaiz2020; EsquivelElizondo2021)



  • This organism has been recovered from a biogas reactor. Pathogenicity status unknown, or very unlikely to be pathogenic. Likely to be transient and not a long-term gut commensal.
    • QUIRKS
  • Produces caproate.
    • GENERAL CHARACTERISTICS (Flaiz2020); (EsquivelElizondo2021);
    Character Response
  • pH
  • Acidity tolerance:
  • tolerates pH 5; tolerates pH 9; Grows optimally at pH 7.
  • 🌡
  • Temperature tolerance:
  • grows at 30℃; Grows optimally at 37℃.
  • H+
  • Acid from carbohydrates usually produced:
  • fructose; glucose;
  • ⥅
  • Substrates assimilated or utilised:
  • arabinose; cellubiose; fructose; galactose; glucosamine; glucose; mannitol; mannose; sorbitol; starch; sucrose; xylose;
    • SPECIAL FEATURES (Flaiz2020); (EsquivelElizondo2021);
    Character Response
  • ✓
  • Metabolites produced:
  • acetate; butyrate; lactate; caproate; CO₂; H₂;

    • Details

    GENERAL
    Lineage Physiology General Growth Tolerances Hydrol./digest./degr.
    Phylum:  Firmicutes Class:  Clostridia Order:  Eubacteriales Family:  Oscillospiraceae Genus:  Caproicibacter Gram stain:  neg O2 Relation.:  strictly anaerobic Spore:  Endospore Motility:  Sessile Morphology:  Rod
    Health:  Unknown
    Source:  a biogas reactor
    DNA G+C(%):  51.3
    Opt. T:  37℃
    Lower T(℃):  30(+)
    Opt. pH:  7
    pH 4.2-5.9:  5(+)
    pH >8:  9(+)
    CARBOHYDRATE ACID FORMATION
    Monosaccharide O/F Oligosaccharide O/F Polysaccharide O/F Polyol O/F Other O/F
    Fructose:  + Glucose:  +
    SUBSTRATE ASSIMILATION & UTILISATION
    Monosaccharide util/assim Oligosaccharide util/assim Other carboh. util/assim Amino acid util/assim Organic acid util/assim
    Arabinose:  + Fructose:  + Galactose:  + Glucose:  + Mannose:  + Ribose:  neg Xylose:  + Cellubiose:  + Sucrose:  + Ethanol:  neg Glucosamine:  + Glycerol:  neg Mannitol:  + Methanol:  neg Sorbitol:  + Starch:  + Xylitol:  neg Ala:  neg Glu:  neg Gly:  neg Fumarate:  neg Lactate:  neg Malate:  neg Succinate:  neg

    References

    SPECIFIC REFERENCES FOR CAPROICIBACTER FERMENTANS
  • Flaiz2020 - Caproicibacter fermentans gen. nov., sp. nov., a new caproate-producing bacterium and emended description of the genus Caproiciproducens.
  • EsquivelElizondo2021 - The Isolate Caproiciproducens sp. 7D4C2 Produces n-Caproate at Mildly Acidic Conditions From Hexoses: Genome and rBOX Comparison With Related Strains and Chain-Elongating Bacteria.
  • ...............................
    • GUT MICROBIOME COMPILATIONS AND METASTUDIES FOR CAPROICIBACTER FERMENTANS
  • New2022 - Collective effects of human genomic variation on microbiome function.
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    • Added: March 18, 2022