Desulfocurvibacter africanus

(aka Desulfovibrio Africans)

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

Overview

  • Desulfocurvibacter africanus, (aka Desulfovibrio Africans), is a Gram-negative, non-spore-forming, strictly anaerobic, motile, rod-shaped - curved bacterium. It has been detected in at least 1 gut microbiome compilation study or metastudy. The DNA G+C content is 61.1%. Desulfocurvibacter africanus is likely to be transient and not a long-term gut coloniser. (Spring2019; Campbell1966; CastanedaCarrion2010)



  • This organism has been recovered from well water, Libya. Pathogenicity status unknown, or very unlikely to be pathogenic. Likely to be transient and not a long-term gut commensal.
    • GENERAL CHARACTERISTICS (Spring2019); (Campbell1966); (CastanedaCarrion2010);
    Character Response
  • 🧂
  • Salt tolerance:
  • tolerates 4% salt; Grows optimally with 0-1% salt.
  • pH
  • Acidity tolerance:
  • tolerates pH 6.6-7.7; Grows optimally at pH 7.0.
  • 🌡
  • Temperature tolerance:
  • grows at 20℃; grows at 40℃; Grows optimally at 37℃.
  • H+
  • Acid from carbohydrates usually produced:
  • pyruvate;
  • ⥅
  • Substrates assimilated or utilised:
  • ethanol; lactate; pyruvate; H2 consumed;
    • SPECIAL FEATURES (Spring2019); (CastanedaCarrion2010);
    Character Response
  • ✓
  • Metabolites produced:
  • acetate; Hâ‚‚S;
  • ✗
  • Nitrate:
  • not reduced
  • ✓
  • Sulfate:
  • reduced
  • ✓
  • Thiosulfate:
  • reduced
  • ✗
  • Pigments:
  • not produced

    • Details

    GENERAL
    Lineage Physiology General Growth Tolerances Hydrol./digest./degr.
    Phylum:  Proteobacteria Class:  Deltaproteobacteria Order:  Desulfovibrionales Family:  Desulfovibrionaceae Genus:  Desulfocurvibacter Alt. name:  Desulfovibrio Africans Gram stain:  neg O2 Relation.:  strictly anaerobic Spore:  No spore Motility:  Swimming Morphology:  Rod - curved Pigment:  neg
    Health:  Unknown
    Source:  well water, Libya
    DNA G+C(%):  61.1
    Opt. T:  37℃
    Lower T(℃):  20(+)
    Mid T(℃):  40(+)
    NaCl 3-5%:  4(+)
    Opt. pH:  7.0
    pH 6.0-8.0:  6.6-7.7(+)
    CARBOHYDRATE ACID FORMATION
    Monosaccharide O/F Oligosaccharide O/F Polysaccharide O/F Polyol O/F Other O/F
    SUBSTRATE ASSIMILATION & UTILISATION
    Monosaccharide util/assim Oligosaccharide util/assim Other carboh. util/assim Amino acid util/assim Organic acid util/assim
    Fructose:  neg Glucose:  neg Ethanol:  + Methanol:  neg Acetate:  neg Butyrate:  neg Lactate:  + Malate:  neg Propionate:  neg Pyruvate:  +
    ENZYME ACTIVITY
    Enzymes: General Enzymes: Carbohydrate Enzymes: Protein Enzymes: Arylamidases Enzymes: Esters/fats
    Oxidase:  neg Catalase:  w
    METABOLITES - PRODUCTION & USE
    Fuel Usable Metabolites Metabolites Released Special Products Compounds Produced

    		Acetate:  + H2S:  + Pigment:  neg

    References

    SPECIFIC REFERENCES FOR DESULFOCURVIBACTER AFRICANUS
  • Spring2019 - Sulfate-Reducing Bacteria That Produce Exopolymers Thrive in the Calcifying Zone of a Hypersaline Cyanobacterial Mat.
  • Campbell1966 - Desulfovibrio Africans sp. n., a new dissimilatory sulfate-reducing bacterium.
  • CastanedaCarrion2010 - Desulfovibrio africanus subsp. uniflagellum subsp. nov., a sulfate-reducing bacterium from a uranium-contaminated subsurface aquifer.
  • ...............................
    • GUT MICROBIOME COMPILATIONS AND METASTUDIES FOR DESULFOCURVIBACTER AFRICANUS
  • New2022 - Collective effects of human genomic variation on microbiome function.
  • ...............................
    • Added: March 18, 2022