Bifidobacterium pullorum subsp. saeculare

(aka Bifidobacterium saeculare)

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

Overview

  • Bifidobacterium pullorum subsp. saeculare, (aka Bifidobacterium saeculare), is a Gram-positive, non-spore-forming, anaerobic, non-motile, rod-shaped - curved bacterium. It has been detected in at least 2 gut microbiome compilation studies or metastudies. The DNA G+C content is 63%. Bifidobacterium pullorum subsp. saeculare is probably a rare gut coloniser. (Biavati1991a)



  • This organism has been recovered from the faeces of a rabbit. 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 (Biavati1991a);
    Character Response
  • pH
  • Acidity tolerance:
  • doesn't tolerate pH 5.5; doesn't tolerate pH 8.9; Grows optimally at pH 6.8-7.3.
  • 🌡
  • Temperature tolerance:
  • doesn't grow at 28℃; doesn't grow at 47℃; Grows optimally at 36-38℃.
  • H+
  • Acid from carbohydrates usually produced:
  • xylan; melezitose;
  • ±
  • Strain-dependent acid from carbs:
  • lactose; salicin;
  • ⥅
  • Substrates assimilated or utilised:
  • glucosamine;
    • SPECIAL FEATURES
    Character Response
  • ✓
  • Metabolites produced:
  • acetate; lactate;
  • ✗
  • Metabolites not produced:
  • indole;

    • Details

    GENERAL
    Lineage Physiology General Growth Tolerances Hydrol./digest./degr.
    Phylum:  Actinobacteria Class:  Actinomycetia Order:  Bifidobacteriales Family:  Bifidobacteriaceae Genus:  Bifidobacterium Alt. name:  Bifidobacterium saeculare Gram stain:  + O2 Relation.:  anaerobic Spore:  No spore Motility:  Sessile Morphology:  Rod - curved
    Health:  Unknown
    Source:  the faeces of a rabbit
    DNA G+C(%):  63
    Opt. T:  36-38℃
    Lower T(℃):  28(neg)
    High T(℃):  47(neg)
    Opt. pH:  6.8-7.3
    pH 4.2-5.9:  5.5(neg)
    pH >8:  8.9(neg)
    		Gelatin:  neg
    CARBOHYDRATE ACID FORMATION
    Monosaccharide O/F Oligosaccharide O/F Polysaccharide O/F Polyol O/F Other O/F
    Fucose:  neg D-Fucose:  neg Cellubiose:  neg Lactose:  d Melezitose:  + Amygdalin:  neg Pectin:  neg Xylan:  + Salicin:  d(neg)
    SUBSTRATE ASSIMILATION & UTILISATION
    Monosaccharide util/assim Oligosaccharide util/assim Other carboh. util/assim Amino acid util/assim Organic acid util/assim
    Glucosamine:  + Pectin:  neg
    ENZYME ACTIVITY
    Enzymes: General Enzymes: Carbohydrate Enzymes: Protein Enzymes: Arylamidases Enzymes: Esters/fats
    Oxidase:  neg
    METABOLITES - PRODUCTION & USE
    Fuel Usable Metabolites Metabolites Released Special Products Compounds Produced

    		Acetate:  + Lactate:  + Indole:  neg

    References

    SPECIFIC REFERENCES FOR BIFIDOBACTERIUM PULLORUM SUBSP. SAECULARE
  • Nouioui2018 - Genome-Based Taxonomic Classification of the Phylum Actinobacteria.
  • Finegold2010 - Pyrosequencing study of fecal microflora of autistic and control children
  • Liu2020 - Proposal of Bifidobacterium saeculare Biavati et al. 1992 as a later heterotypic synonym of Bifidobacterium gallinarum Watabe et al. 1983 and Bifidobacterium gallinarum subsp. saeculare subsp. nov.
  • Biavati1991a - Bifidobacterium saeculare: a New Species Isolated from Feces of Rabbit
  • ...............................
    • GUT MICROBIOME COMPILATIONS AND METASTUDIES FOR BIFIDOBACTERIUM PULLORUM SUBSP. SAECULARE
  • De2020 - Metagenomic analysis of gut microbiome and resistome of diarrheal fecal samples from Kolkata, India, reveals the core and variable microbiota including signatures of microbial dark matter.
  • Lagier2016 - Culture of previously uncultured members of the human gut microbiota by culturomics.
  • ...............................
    • Added: January 14, 2022