Bifidobacterium asteroides

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

Overview

  • Bifidobacterium asteroides is a Gram-positive, non-spore-forming, facultatively anaerobic, non-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 59%. Bifidobacterium asteroides is probably a rare gut coloniser. (Biavati2012Bergey)



  • This organism has been recovered from honeybee gut. 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.
    • QUIRKS
  • CO2 required for growth.
    • GENERAL CHARACTERISTICS (Biavati2012Bergey);
    Character Response
  • ±
  • Strain-dependent hydrolysis or digestion:
  • urea;
  • pH
  • Acidity tolerance:
  • doesn't tolerate pH 4.5; doesn't tolerate pH 8; Grows optimally at pH 6.5-7.0.
  • 🌡
  • Temperature tolerance:
  • doesn't grow at 21℃; doesn't grow at 42℃; Grows optimally at 35-36℃.
  • H+
  • Acid from carbohydrates usually produced:
  • fructose; glucose; ribose; xylose; cellubiose; melibiose; raffinose; sucrose; gluconate; salicin;
  • ±
  • Strain-dependent acid from carbs:
  • galactose; mannose; xylan; maltose;
  • ⥅
  • Substrates assimilated or utilised:
  • Casamino acids; CO2 consumed; NH4+ consumed;
  • Active enzymes:
  • catalase;
  • ±
  • Strain-dependent active enzymes:
  • urease;
    • SPECIAL FEATURES (Biavati2012Bergey);
    Character Response
  • ✓
  • Metabolites produced:
  • formate (minor); acetate; lactate; ethanolminor; succinate (minor);
  • ✗
  • Metabolites not produced:
  • propionate; butyrate; COâ‚‚;
  • ✗
  • Nitrate:
  • not reduced
    • RESPONSE TO ANTIBIOTICS (Biavati2012Bergey);
    Class Active Resistant
  • Penicillins:
  • amoxicillin; amoxicillin-clavulanic acid; ampicillin; imipenem; oxacillin; penicillin G; piperacillin; ticarcillin;
  • Cephalosporins:
  • cefotaxime; cefoxitin;
  • Macrolides:
  • erythromycin; oleandomycin; pristinamycin; spiramycin;
  • Tetracyclines:
  • tetracycline;
  • Quinolines:
  • nalidixic-acid;
  • Aminoglycosides:
  • framycetin; kanamycin; streptomycin;
  • Polypep/ketides:
  • bacitracin;
  • Heterocycles:
  • chloramphenicol;
  • fusidic-acid;
  • Vancomycins:
  • teicoplanin;
  • Miscellaneous antibiotics:
  • lincomycin; linezolid; novobiocin; pristinamycin;
  • polymyxin B;

    • Details

    GENERAL
    Lineage Physiology General Growth Tolerances Hydrol./digest./degr.
    Phylum:  Actinobacteria Class:  Actinomycetia Order:  Bifidobacteriales Family:  Bifidobacteriaceae Genus:  Bifidobacterium Gram stain:  + O2 Relation.:  facultatively anaerobic Spore:  No spore Motility:  Sessile Morphology:  Rod - curved
    Health:  Unknown
    Source:  honeybee gut
    DNA G+C(%):  59
    Opt. T:  35-36℃
    Lower T(℃):  21(neg)
    High T(℃):  42(neg)
    Opt. pH:  6.5-7.0
    pH 4.2-5.9:  4.5(neg)
    pH 6.0-8.0:  8(neg)
    		Urea:  d
    CARBOHYDRATE ACID FORMATION
    Monosaccharide O/F Oligosaccharide O/F Polysaccharide O/F Polyol O/F Other O/F
    L-Arabinose:  neg Fructose:  + Fucose:  neg D-Fucose:  neg Galactose:  d Glucose:  + Mannose:  d(neg) Rhamnose:  neg Ribose:  + Xylose:  d(+) Cellubiose:  + Lactose:  neg Maltose:  d Melezitose:  neg Melibiose:  + Sucrose:  + Trehalose:  neg Inulin:  neg Starch:  neg Xylan:  d(neg) Glycerol:  neg Mannitol:  neg Sorbitol:  neg Gluconate:  + Salicin:  +
    SUBSTRATE ASSIMILATION & UTILISATION
    Monosaccharide util/assim Oligosaccharide util/assim Other carboh. util/assim Amino acid util/assim Organic acid util/assim
    ENZYME ACTIVITY
    Enzymes: General Enzymes: Carbohydrate Enzymes: Protein Enzymes: Arylamidases Enzymes: Esters/fats
    Catalase:  + Urease:  d
    ANTIBIOTICS ℞
    Penicillins & Penems (μg/mL) Cephalosporins (μg/mL) Aminoglycosides (μg/mL) Macrolides (μg/mL) Quinolones (μg/mL)
    amoxicillin:  Sens
    Augmentin:  Sens
    ampicillin:  Sens
    oxacillin:  Sens
    penicillin_G:  SensRNG: (0.10/0.27) RNG: (0.10-0.30)
    piperacillin:  Sens
    ticarcillin:  Sens
    imipenem:  Sens
    cefotaxime:  Sens
    cefoxitin:  Sens
    framycetin:  Res
    kanamycin:  R(183/362) RNG: (200-400)
    neomycin:  Var(MIC50): 19, MIC90: 27 RNG: (15-30
    streptomycin:  R(10/421) RNG: (10-800)
    erythromycin:  S(0.05)
    oleandomycin:  Sens
    pristinamycin:  Sens
    spiramycin:  Sens
    linezolid:  Sens
    nalidixic-acid:  R(437/487) RNG: (400-500)
    Tetracyclines (μg/mL) Vancomycin Class (μg/mL) Polypep/ketides (μg/mL) Heterocycles (μg/mL) Other (μg/mL)
    tetracycline:  SensRNG: (2.6/3.7) RNG: (2.0-4.0)
    teicoplanin:  Sens
    bacitracin:  S(0.05)
    chloramphenicol:  SensRNG: (2.1/2.8) RNG: (2.0-3.0)
    nitrofurantoin:  Var(MIC50): 8.0, MIC90: 14 RNG: (4.0-20
    lincomycin:  Sens
    novobiocin:  Sens
    polymyxin_B:  R(1000)
    fusidic-acid:  Res

    References

    SPECIFIC REFERENCES FOR BIFIDOBACTERIUM ASTEROIDES
  • Biavati2012Bergey - Bergey's manual of systematic bacteriology. Vol. 5, The Actinobacteria. Part A & B. Bifidobacteriaceae, Genus I. Bifidobacterium
  • ...............................
    • GUT MICROBIOME COMPILATIONS AND METASTUDIES FOR BIFIDOBACTERIUM ASTEROIDES
  • New2022 - Collective effects of human genomic variation on microbiome function.
  • ...............................
    • Added: March 18, 2022