Curtobacterium flaccumfaciens

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

Overview

  • Curtobacterium flaccumfaciens is a Gram-positive, non-spore-forming, strictly aerobic, motile, rod-shaped bacterium. It has been detected in at least 2 gut microbiome compilation studies or metastudies. The DNA G+C content is 68.3-73.7%. Curtobacterium flaccumfaciens is likely to be transient and not a long-term gut coloniser. (Collins1983b)



  • This organism has been recovered from human faeces. 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. Likely to be transient and not a long-term gut commensal.
    • QUIRKS
  • Borderline cold mesophile, so unlikely to be a gut coloniser.
    • GENERAL CHARACTERISTICS (Collins1983b);
    Character Response
  • Substrates hydrolysed or digested:
  • aesculin; starch;
  • 🧂
  • Salt tolerance:
  • tolerates 9% salt;
  • 🌡
  • Temperature tolerance:
  • grows at 37℃; Grows optimally at 24-27℃.
  • ⥅
  • Substrates assimilated or utilised:
  • adonitol; arabinose; cellubiose; fructose; galactose; gluconate; glucose; glycerol; inositol; maltose; mannose; melezitose; melibiose; raffinose; sucrose; xylose;
  • Active enzymes:
  • alkaline phosphatase; N-Ac β-glucosaminidase; catalase; esterase lipase C8; α-galactosidase; β-galactosidase; α-glucosidase; β-glucosidase; Leu arylamidase; α-mannosidase; pyrrolidine arylamidase;
    • SPECIAL FEATURES (Collins1983b);
    Character Response
  • ✓
  • Metabolites produced:
  • H₂S;
  • ✗
  • Metabolites not produced:
  • ammonia; indole;
  • ✗
  • Nitrate:
  • not reduced
  • ✓
  • Pigments:
  • produced

  • 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:  Actinobacteria Class:  Actinomycetia Order:  Micrococcales Family:  Microbacteriaceae Genus:  Curtobacterium Gram stain:  + O2 Relation.:  strictly aerobic Spore:  No spore Motility:  Swimming Morphology:  Rod Pigment:  +
    Health:  Unknown
    Source:  human faeces
    DNA G+C(%):  68.3-73.7
    Opt. T:  24-27℃
    Mid T(℃):  37(+)
    NaCl >6%:  9(+)
    		Aesculin:  + Urea:  neg Gelatin:  vr Starch:  + Tyrosine:  neg Pectin:  neg
    CARBOHYDRATE ACID FORMATION
    Monosaccharide O/F Oligosaccharide O/F Polysaccharide O/F Polyol O/F Other O/F
    Ribose:  neg Xylose:  neg Lactose:  neg Maltose:  neg Glycogen:  neg Mannitol:  neg
    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:  + Xylose:  + Cellubiose:  + Maltose:  + Melezitose:  d(+) Melibiose:  + Raffinose:  + Sucrose:  + Adonitol:  d(+) Dextrin:  neg Gluconate:  + Glycerol:  + Glycogen:  neg Inositol:  + Inulin:  neg Starch:  neg
    ENZYME ACTIVITY
    Enzymes: General Enzymes: Carbohydrate Enzymes: Protein Enzymes: Arylamidases Enzymes: Esters/fats
    Oxidase:  neg Catalase:  + Urease:  neg Ac-β-glcamnd:  + α-Fucosidase:  vr α-Galactosidase:  + β-Galactosidase:  + α-Glucosidase:  + β-Glucosidase:  + α-Mannosidase:  + LeuAA:  + PyrrolidAA:  + AlkalineP:  + AcidP:  vr Esterase(C4):  vr EstLip(C8):  + Lipase(C14):  neg
    METABOLITES - PRODUCTION & USE
    Fuel Usable Metabolites Metabolites Released Special Products Compounds Produced

    		H2S:  + Ammonia:  neg Indole:  neg Pigment:  +

    References

    SPECIFIC REFERENCES FOR CURTOBACTERIUM FLACCUMFACIENS
  • Collins1983b - Reclassification of Corynebacterium flaccumfaciens, Corynebacterium betae, Corynebacterium oortii and Corynebacterium poinsettiae in the genus Curtobacterium, as Curtobacterium flaccumfaciens comb. nov.
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    • GUT MICROBIOME COMPILATIONS AND METASTUDIES FOR CURTOBACTERIUM FLACCUMFACIENS
  • Lagier2016 - Culture of previously uncultured members of the human gut microbiota by culturomics.
  • RajilicStojanovic2014 - The first 1000 cultured species of the human gastrointestinal microbiota.
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    • Added: April 08, 2021