Blastomonas natatoria

(aka Blastobacter natatorius)

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

Overview

  • Blastomonas natatoria, (aka Blastobacter natatorius), is a Gram-negative, non-spore-forming, aerobic, motile, club-shaped-shaped bacterium. It has been detected in at least 2 gut microbiome compilation studies or metastudies. The DNA G+C content is 65%. Blastomonas natatoria is likely to be transient and not a long-term gut coloniser. (Li1997)



  • This organism has been recovered from human faeces, and freshwater. 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 (Li1997);
    Character Response
  • Substrates hydrolysed or digested:
  • aesculin;
  • 🧂
  • Salt tolerance:
  • tolerates 3.0% salt;
  • pH
  • Acidity tolerance:
  • Grows optimally at pH 7-7.5.
  • 🌡
  • Temperature tolerance:
  • grows at 30℃; grows at 35℃; Grows optimally at 30-35℃.
  • H+
  • Acid from carbohydrates usually produced:
  • fructose; glucose; mannose; maltose; melezitose; sucrose;
  • ⥅
  • Substrates assimilated or utilised:
  • arabinose; L-arabinose; glucose; maltose; xylose; glutamate; acetate; butyrate; fumarate; propionate; pyruvate; succinate; glutamine;
  • Active enzymes:
  • catalase; oxidase;
    • SPECIAL FEATURES (Li1997);
    Character Response
  • ✗
  • Metabolites not produced:
  • Hâ‚‚S; indole;
  • ✗
  • Haemolysis:
  • absent
  • ✗
  • Nitrate:
  • not reduced
  • Pigments:
  • yellow, orange, brown
  • NOTES

    Is able to use casamino acids derived from acid hydrolysis of casein.

  • Dubourg, G., Lagier, J. C., Armougom, F., Robert, C., Hamad, I., Brouqui, P., & Raoult, D. (2013). The gut microbiota of a patient with resistant tuberculosis is more comprehensively studied by culturomics than by metagenomics. European Journal of Clinical Microbiology & Infectious Diseases: Official Publication of the European Society of Clinical Microbiology, 32(5), 637–645.

    • Details

    GENERAL
    Lineage Physiology General Growth Tolerances Hydrol./digest./degr.
    Phylum:  Proteobacteria Class:  Alphaproteobacteria Order:  Sphingomonadales Family:  Sphingomonadaceae Genus:  Blastomonas Alt. name:  Blastobacter natatorius Gram stain:  neg O2 Relation.:  aerobic Spore:  No spore Motility:  Swimming Morphology:  Club rod Pigment:  yellow, orange, brown
    Health:  Unknown
    Source:  human faeces, and freshwater
    DNA G+C(%):  65
    Opt. T:  30-35℃
    Lower T(℃):  30(+)
    Mid T(℃):  35(+)
    NaCl 3-5%:  3.0(+)
    Opt. pH:  7-7.5
    		Aesculin:  + Urea:  neg Gelatin:  w Starch:  neg Casein:  neg Alginate:  neg DNA:  w Tween:  80(+)
    CARBOHYDRATE ACID FORMATION
    Monosaccharide O/F Oligosaccharide O/F Polysaccharide O/F Polyol O/F Other O/F
    Fructose:  + Glucose:  + Mannose:  + Maltose:  + Melezitose:  + Sucrose:  +
    SUBSTRATE ASSIMILATION & UTILISATION
    Monosaccharide util/assim Oligosaccharide util/assim Other carboh. util/assim Amino acid util/assim Organic acid util/assim
    Arabinose:  + L-Arabinose:  + Fructose:  neg Glucose:  + Mannose:  neg Xylose:  + Cellubiose:  neg Lactose:  neg Maltose:  + Mannitol:  neg Methanol:  neg Propanol:  neg Sorbitol:  neg Glu:  + Acetate:  + Benzoate:  neg Butyrate:  + Citrate:  neg Formate:  neg Fumarate:  + Lactate:  neg Malate:  neg Phenylacetate:  neg Propionate:  + Pyruvate:  + Succinate:  +
    ENZYME ACTIVITY
    Enzymes: General Enzymes: Carbohydrate Enzymes: Protein Enzymes: Arylamidases Enzymes: Esters/fats
    Oxidase:  + Catalase:  + Urease:  neg Phe deaminase:  neg
    METABOLITES - PRODUCTION & USE
    Fuel Usable Metabolites Metabolites Released Special Products Compounds Produced

    		H2S:  neg Indole:  neg Pigment:  yellow, orange, brown

    References

    SPECIFIC REFERENCES FOR BLASTOMONAS NATATORIA
  • Li1997 - Transfer of Blastobacter natatorius (Sly 1985) to the Genus Blastomonas gen. nov. as Blastomonas natatoria comb. nov.
  • ...............................
    • GUT MICROBIOME COMPILATIONS AND METASTUDIES FOR BLASTOMONAS NATATORIA
  • Dubourg2013 - The gut microbiota of a patient with resistant tuberculosis is more comprehensively studied by culturomics than by metagenomics.
  • RajilicStojanovic2014 - The first 1000 cultured species of the human gastrointestinal microbiota.
  • ...............................
    • Added: April 08, 2021