Cryptobacterium curtum

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

Overview

  • Cryptobacterium curtum is a Gram-positive, non-spore-forming, strictly anaerobic, non-motile, rod-shaped bacterium. It has been detected in at least 7 gut microbiome compilation studies or metastudies. The DNA G+C content is 50-51%. Cryptobacterium curtum is probably a common, although minor, coloniser of the gut. (Nakazawa1999)



  • This organism has been recovered from dental disease and human faeces. The risk classification (www.baua.de) for this organism is 1, i.e., low risk of infection and spread (notes: opportunistic in immunocompromised patients). It is an opportunistic pathogen. A possible gut commensal.
    • GENERAL CHARACTERISTICS (Nakazawa1999);
    Character Response
  • Substrates hydrolysed or digested:
  • arginine;
    • SPECIAL FEATURES (Nakazawa1999);
    Character Response
  • ✓
  • Metabolites produced:
  • ammonia;
  • ✗
  • Metabolites not produced:
  • indole;
  • ✗
  • Haemolysis:
  • absent
  • ✗
  • Nitrate:
  • not reduced

  • Bik, E. M., Eckburg, P. B., Gill, S. R., Nelson, K. E., Purdom, E. A., Francois, F., Perez-Perez, G., Blaser, M. J., & Relman, D. A. (2006). Molecular analysis of the bacterial microbiota in the human stomach. Proceedings of the National Academy of Sciences of the United States of America, 103(3), 732–737.

    • Details

    GENERAL
    Lineage Physiology General Growth Tolerances Hydrol./digest./degr.
    Phylum:  Actinobacteria Class:  Coriobacteriia Order:  Eggerthellales Family:  Eggerthellaceae Genus:  Cryptobacterium Gram stain:  + O2 Relation.:  strictly anaerobic Spore:  No spore Motility:  Sessile Morphology:  Rod
    Health:  Unknown
    Source:  dental disease and human faeces
    DNA G+C(%):  50-51
    		Aesculin:  neg Urea:  neg Gelatin:  neg Starch:  neg Arginine:  +
    SUBSTRATE ASSIMILATION & UTILISATION
    Monosaccharide util/assim Oligosaccharide util/assim Other carboh. util/assim Amino acid util/assim Organic acid util/assim
    Arabinose:  neg Fructose:  neg Galactose:  neg Glucose:  neg Mannose:  neg Rhamnose:  neg Ribose:  neg Xylose:  neg Cellubiose:  neg Lactose:  neg Maltose:  neg Melezitose:  neg Melibiose:  neg Sucrose:  neg Trehalose:  neg Adonitol:  neg Amygdalin:  neg Erythritol:  neg Aesculin:  neg Glycogen:  neg Inositol:  neg Mannitol:  neg Salicin:  neg Sorbitol:  neg Starch:  neg
    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

    		Ammonia:  + Indole:  neg

    References

    SPECIFIC REFERENCES FOR CRYPTOBACTERIUM CURTUM
  • Nakazawa1999 - Cryptobacterium curtum gen. nov., sp. nov., a new genus of Gram-positive anaerobic rod isolated from human oral cavities.
  • ...............................
    • GUT MICROBIOME COMPILATIONS AND METASTUDIES FOR CRYPTOBACTERIUM CURTUM
  • Bik2006 - Molecular analysis of the bacterial microbiota in the human stomach.
  • Byrd2020 - Stability and dynamics of the human gut microbiome and its association with systemic immune traits.
  • Lagier2016 - Culture of previously uncultured members of the human gut microbiota by culturomics.
  • New2022 - Collective effects of human genomic variation on microbiome function.
  • RajilicStojanovic2014 - The first 1000 cultured species of the human gastrointestinal microbiota.
  • Zeller2014 - Potential of fecal microbiota for early-stage detection of colorectal cancer
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    • Added: April 08, 2021