Heyndrickxia sporothermodurans

(aka Bacillus sporothermodurans)

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

Overview

  • Heyndrickxia sporothermodurans, (aka Bacillus sporothermodurans), is a Gram-positive, spore-forming, strictly aerobic, motile, rod-shaped bacterium. The DNA G+C content is 36%. Heyndrickxia sporothermodurans is likely to be transient and not a long-term gut coloniser. (Pettersson1996; Heyndrickx2012)



  • This organism has been recovered from milk and has been detected in human faeces (Bilen2018e). 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
  • Obligate aerobe; unlikely to be a gut coloniser.
    • GENERAL CHARACTERISTICS (Pettersson1996); (Heyndrickx2012);
    Character Response
  • Substrates hydrolysed or digested:
  • aesculin; gelatin;
  • 🧂
  • Salt tolerance:
  • strain-variable at 5(d)%;
  • pH
  • Acidity tolerance:
  • tolerates pH 5; tolerates pH 9;
  • 🌡
  • Temperature tolerance:
  • strain-variable at 10(d); grows at 20℃; grows at 45℃; Grows optimally at 37℃.
  • ±
  • Strain-dependent acid from carbs:
  • mannose; D-tagatose; amygdalin; starch; cellubiose; gentiobiose; melezitose; D-turanose; glycerol; mannitol; xylitol; arbutin; α-methyl glucoside; salicin;
  • Active enzymes:
  • catalase; oxidase;
    • SPECIAL FEATURES (Heyndrickx2012);
    Character Response
  • ✗
  • Metabolites not produced:
  • H₂S; indole;
  • VP test:
  • activity is variable
  • ✗
  • ONPG test:
  • not active
  • ✓
  • NO3➔NO2:
  • reduced

    • Details

    GENERAL
    Lineage Physiology General Growth Tolerances Hydrol./digest./degr.
    Phylum:  Firmicutes Class:  Bacilli Order:  Bacillales Family:  Bacillaceae Genus:  Heyndrickxia Alt. name:  Bacillus sporothermodurans Gram stain:  + O2 Relation.:  strictly aerobic Spore:  Endospore Motility:  Swimming Morphology:  Rod
    Health:  Unknown
    Source:  milk and has been detected in human faeces (Bilen2018e)
    DNA G+C(%):  36
    Opt. T:  37℃
    Low T(℃):  10(d)
    Lower T(℃):  20(+)
    High T(℃):  45(+)
    NaCl 3-5%:  5(d)
    pH 4.2-5.9:  5(+)
    pH >8:  9(+)
    		Aesculin:  + Urea:  neg Gelatin:  + Starch:  neg Casein:  neg
    CARBOHYDRATE ACID FORMATION
    Monosaccharide O/F Oligosaccharide O/F Polysaccharide O/F Polyol O/F Other O/F
    D-Arabinose:  neg L-Arabinose:  neg Fructose:  w Fucose:  neg D-Fucose:  neg Galactose:  neg Glucose:  w Mannose:  d D-Lyxose:  neg Rhamnose:  neg Ribose:  neg Sorbose:  neg D-Tagatose:  d Xylose:  neg L-Xylose:  neg Cellubiose:  d Gentiobiose:  d Lactose:  neg Maltose:  w Melezitose:  d Melibiose:  neg Sucrose:  w Trehalose:  w Turanose:  d Amygdalin:  d Glycogen:  neg Inulin:  neg Starch:  d(w) Adonitol:  neg D-Arabitol:  neg L-Arabitol:  neg Dulcitol:  neg Erythritol:  neg Glycerol:  d Inositol:  neg Mannitol:  d Sorbitol:  neg Xylitol:  d(w) Arbutin:  d Gluconate:  neg 2-Ketogluconate:  neg 5-Ketogluconate:  neg Me-α-D-Glc:  d Me-α-D-Mann:  neg Me-Xyloside:  neg NAc-α-GA:  w Salicin:  d
    SUBSTRATE ASSIMILATION & UTILISATION
    Monosaccharide util/assim Oligosaccharide util/assim Other carboh. util/assim Amino acid util/assim Organic acid util/assim
    Citrate:  vr Succinate:  neg
    ENZYME ACTIVITY
    Enzymes: General Enzymes: Carbohydrate Enzymes: Protein Enzymes: Arylamidases Enzymes: Esters/fats
    Oxidase:  + Catalase:  + Urease:  neg
    METABOLITES - PRODUCTION & USE
    Fuel Usable Metabolites Metabolites Released Special Products Compounds Produced

    		H2S:  neg Indole:  neg

    References

    SPECIFIC REFERENCES FOR HEYNDRICKXIA SPOROTHERMODURANS
  • Pettersson1996 - Bacillus sporothermodurans, a new species producing highly heat-resistant endospores.
  • Heyndrickx2012 - Emended descriptions of Bacillus sporothermodurans and Bacillus oleronius with the inclusion of dairy farm isolates of both species.
  • ...............................
    • GENERAL REFERENCES FOR HEYNDRICKXIA SPOROTHERMODURANS
  • Bilen2018e - Description of the human gut microbiota by culturomics
    • Added: January 05, 2022