Roseobacter denitrificans

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

Overview

  • Roseobacter denitrificans is a Gram-negative, non-spore-forming, aerobic, motile, coccobacillus bacterium. It has been detected in at least 1 gut microbiome compilation study or metastudy. The DNA G+C content is 59.6%. Roseobacter denitrificans is unlikely to be a gut coloniser. (Shiba1991)



  • This organism has been recovered from high-tide seaweed. 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
  • Aerobic and low growth temperatures of 20-30C suggests this is not a gut coloniser.
    • GENERAL CHARACTERISTICS (Shiba1991);
    Character Response
  • Substrates hydrolysed or digested:
  • gelatin;
  • 🧂
  • Salt tolerance:
  • doesn't tolerate 0% salt;
  • pH
  • Acidity tolerance:
  • Grows optimally at pH 7.0-8.0.
  • 🌡
  • Temperature tolerance:
  • doesn't grow at 37℃; Grows optimally at 20-30℃.
  • ⥅
  • Substrates assimilated or utilised:
  • glucose; glutamate; acetate; citrate; malate; pyruvate; succinate; glutamine;
  • Active enzymes:
  • catalase; oxidase;
    • SPECIAL FEATURES (Shiba1991);
    Character Response
  • ✓
  • Nitrite:
  • reduced
  • ✓
  • NO3➔NO2:
  • reduced
  • Pigments:
  • pink
    • RESPONSE TO ANTIBIOTICS (Shiba1991);
    Class Active Resistant
  • Penicillins:
  • penicillin;
  • Tetracyclines:
  • tetracycline;
  • Aminoglycosides:
  • streptomycin;
  • Heterocycles:
  • chloramphenicol;
  • Miscellaneous antibiotics:
  • polymyxin B;

    • Details

    GENERAL
    Lineage Physiology General Growth Tolerances Hydrol./digest./degr.
    Phylum:  Proteobacteria Class:  Alphaproteobacteria Order:  Rhodobacterales Family:  Roseobacteraceae Genus:  Roseobacter Gram stain:  neg O2 Relation.:  aerobic Spore:  No spore Motility:  Swimming Morphology:  Coccobacillus Pigment:  pink
    Health:  Unknown
    Source:  high-tide seaweed
    DNA G+C(%):  59.6
    Opt. T:  20-30℃
    Mid T(℃):  37(neg)
    NaCl 0.5-2%:  0(neg)
    Opt. pH:  7.0-8.0
    		Gelatin:  + Tween:  80(+)
    SUBSTRATE ASSIMILATION & UTILISATION
    Monosaccharide util/assim Oligosaccharide util/assim Other carboh. util/assim Amino acid util/assim Organic acid util/assim
    Glucose:  + Methanol:  neg Glu:  + Acetate:  + Butyrate:  neg Citrate:  + Malate:  + Pyruvate:  + Succinate:  +
    ENZYME ACTIVITY
    Enzymes: General Enzymes: Carbohydrate Enzymes: Protein Enzymes: Arylamidases Enzymes: Esters/fats
    Oxidase:  + Catalase:  +
    METABOLITES - PRODUCTION & USE
    Fuel Usable Metabolites Metabolites Released Special Products Compounds Produced

    		Pigment:  pink
    ANTIBIOTICS ℞
    Penicillins & Penems (μg/mL) Cephalosporins (μg/mL) Aminoglycosides (μg/mL) Macrolides (μg/mL) Quinolones (μg/mL)
    penicillin:  S(20U)
    streptomycin:  S(50; disc)
    Tetracyclines (μg/mL) Vancomycin Class (μg/mL) Polypep/ketides (μg/mL) Heterocycles (μg/mL) Other (μg/mL)
    tetracycline:  S(50; disc)
    chloramphenicol:  S(100; disc)
    polymyxin_B:  S(100U)

    References

    SPECIFIC REFERENCES FOR ROSEOBACTER DENITRIFICANS
  • Shiba1991 - Roseobacter litoralis gen. nov., sp. nov., and Roseobacter denitrificans sp. nov., Aerobic Pink-Pigmented Bacteria which Contain Bacteriochlorophyll a
  • ...............................
    • GUT MICROBIOME COMPILATIONS AND METASTUDIES FOR ROSEOBACTER DENITRIFICANS
  • Zeller2014 - Potential of fecal microbiota for early-stage detection of colorectal cancer
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    • Added: October 10, 2022