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

Overview


  • Thermobacillus composti is a Gram-negative, spore-forming, aerobic, 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 60%. Thermobacillus composti is likely to be transient and not a long-term gut coloniser. (Watanabe2007)



  • This organism has been recovered from a composting reactor. 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
  • High optimum growth temperature so unlikely to be a gut coloniser.

  • GENERAL CHARACTERISTICS (Watanabe2007);
    Character Response
  • 🧂
  • Salt tolerance:
  • tolerates 4.4% salt; Grows optimally with 0% salt.
  • pH
  • Acidity tolerance:
  • tolerates pH 5.6; tolerates pH 10.1; Grows optimally at pH 9.
  • 🌡
  • Temperature tolerance:
  • grows at 32℃; grows at 61℃; Grows optimally at 50℃.
  • Substrates assimilated or utilised:
  • cellubiose; dextrin; fructose; galactose; glucose; lactose; maltose; mannose; melibiose; starch; sucrose; trehalose; xylan; xylose;
  • Active enzymes:
  • alkaline phosphatase; acid phosphatase; N-Ac β-glucosaminidase; catalase; esterase C4; fucosidase; α-galactosidase; β-galactosidase; α-glucosidase; β-glucosidase; β-glucuronidase; Leu arylamidase; oxidase; trypsin; naphthol-ASBI-P;

  • SPECIAL FEATURES
    Character Response

    Details


    GENERAL
    Lineage Physiology General Growth Tolerances Hydrol./digest./degr.
    Phylum:  Firmicutes Class:  Bacilli Order:  Bacillales Family:  Paenibacillaceae Genus:  Thermobacillus Gram stain:  neg O2 Relation.:  aerobic Spore:  Endospore Motility:  Sessile Morphology:  Rod
    Health:  Unknown
    Source:  a composting reactor
    DNA G+C(%):  60
    Opt. T:  50℃
    Mid T(℃):  32(+)
    High T(℃):  61(+)
    NaCl 3-5%:  4.4(+)
    Opt. pH:  9
    pH 4.2-5.9:  5.6(+)
    pH >8:  10.1(+)
    Casein:  neg

    CARBOHYDRATE ACID FORMATION
    Monosaccharide O/F Oligosaccharide O/F Polysaccharide O/F Polyol O/F Other O/F
    Glucose:  neg

    SUBSTRATE ASSIMILATION & UTILISATION
    Monosaccharide util/assim Oligosaccharide util/assim Other carboh. util/assim Amino acid util/assim Organic acid util/assim
    Fructose:  + Galactose:  + Glucose:  + Mannose:  + Xylose:  + Cellubiose:  + Lactose:  + Maltose:  + Melibiose:  + Sucrose:  + Trehalose:  + Dextrin:  + Erythritol:  neg Sorbitol:  neg Starch:  + Xylan:  +

    ENZYME ACTIVITY
    Enzymes: General Enzymes: Carbohydrate Enzymes: Protein Enzymes: Arylamidases Enzymes: Esters/fats
    Oxidase:  + Catalase:  + Ac-β-glcamnd:  + α-Fucosidase:  + α-Galactosidase:  + β-Galactosidase:  + α-Glucosidase:  + β-Glucosidase:  + β-Glucuronidase:  + α-Mannosidase:  neg Chymotrypsin:  neg Trypsin:  + LeuAA:  + ValAA:  neg AlkalineP:  + AcidP:  + Esterase(C4):  + Lipase(C14):  neg

    References


    SPECIFIC REFERENCES FOR THERMOBACILLUS COMPOSTI
  • Watanabe2007 - Thermobacillus composti sp. nov., a moderately thermophilic bacterium isolated from a composting reactor.
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  • GUT MICROBIOME COMPILATIONS AND METASTUDIES FOR THERMOBACILLUS COMPOSTI
  • New2022 - Collective effects of human genomic variation on microbiome function.
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