Humisphaera borealis

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

Overview

  • Humisphaera borealis is a Gram-negative, non-spore-forming, microaerophilic, motile, coccus bacterium. It has been detected in at least 1 gut microbiome compilation study or metastudy. The DNA G+C content is 63.1%. Humisphaera borealis is likely to be transient and not a long-term gut coloniser. (Dedysh2021)



  • This organism has been recovered from a boreal eutrophic lake, Russia. Pathogenicity status unknown, or very unlikely to be pathogenic. Likely to be transient and not a long-term gut commensal.
    • QUIRKS
  • Low optimum temperatures (20-25C) makes this an unlikely gut coloniser.
    • GENERAL CHARACTERISTICS (Dedysh2021);
    Character Response
  • pH
  • Acidity tolerance:
  • tolerates pH 5.5; tolerates pH 8.0; Grows optimally at pH 6.5-7.0.
  • 🌡
  • Temperature tolerance:
  • grows at 10℃; grows at 30℃; Grows optimally at 20-25℃.
  • ⥅
  • Substrates assimilated or utilised:
  • N-acetylglucosamine; galactose; glucose; lactose; rhamnose; xylan; xylose;
  • Active enzymes:
  • alkaline phosphatase; acid phosphatase; catalase; esterase C4; esterase lipase C8; β-galactosidase; α-glucosidase; Leu arylamidase; oxidase; urease; Val arylamidase; naphthol-ASBI-P;
    • SPECIAL FEATURES (Dedysh2021);
    Character Response
  • ✓
  • Nitrate:
  • reduced
  • Pigments:
  • pink

    • Details

    GENERAL
    Lineage Physiology General Growth Tolerances Hydrol./digest./degr.
    Phylum:  Planctomycetes Class:  Phycisphaerae Order:  Tepidisphaerales Family:  Tepidisphaeraceae Genus:  Humisphaera Gram stain:  neg O2 Relation.:  microaerophilic Spore:  No spore Motility:  Swimming Morphology:  Coccus Pigment:  pink
    Health:  Unknown
    Source:  a boreal eutrophic lake, Russia
    DNA G+C(%):  63.1
    Opt. T:  20-25℃
    Low T(℃):  10(+)
    Lower T(℃):  30(+)
    Opt. pH:  6.5-7.0
    pH 4.2-5.9:  5.5(+)
    pH 6.0-8.0:  8.0(+)
    SUBSTRATE ASSIMILATION & UTILISATION
    Monosaccharide util/assim Oligosaccharide util/assim Other carboh. util/assim Amino acid util/assim Organic acid util/assim
    Fructose:  neg Fucose:  w Galactose:  + Glucose:  + Mannose:  w Rhamnose:  + Ribose:  neg Xylose:  + Lactose:  + Sucrose:  neg Trehalose:  neg N_Acetyl_glucosamine:  + Cellulose:  neg Pectin:  w Starch:  w Xylan:  + Lactate:  w Pyruvate:  w
    ENZYME ACTIVITY
    Enzymes: General Enzymes: Carbohydrate Enzymes: Protein Enzymes: Arylamidases Enzymes: Esters/fats
    Oxidase:  + Catalase:  + Urease:  + Ac-β-glcamnd:  neg α-Fucosidase:  neg α-Galactosidase:  neg β-Galactosidase:  + α-Glucosidase:  + β-Glucosidase:  neg β-Glucuronidase:  neg α-Mannosidase:  neg Chymotrypsin:  neg Trypsin:  neg CystineAA:  neg LeuAA:  + ValAA:  + AlkalineP:  + AcidP:  + Esterase(C4):  + EstLip(C8):  + Lipase(C14):  neg
    METABOLITES - PRODUCTION & USE
    Fuel Usable Metabolites Metabolites Released Special Products Compounds Produced

    		Pigment:  pink

    References

    SPECIFIC REFERENCES FOR HUMISPHAERA BOREALIS
  • Dedysh2021 - Wide distribution of Phycisphaera-like planctomycetes from WD2101 soil group in peatlands and genome analysis of the first cultivated representative
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    • GUT MICROBIOME COMPILATIONS AND METASTUDIES FOR HUMISPHAERA BOREALIS
  • New2022 - Collective effects of human genomic variation on microbiome function.
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    • Added: March 18, 2022