Rhodococcus opacus

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

Overview

  • Rhodococcus opacus is a Gram-positive, non-spore-forming, strictly aerobic, non-motile, rod-shaped-coccus cycle bacterium. It has been detected in at least 1 gut microbiome compilation study or metastudy. The DNA G+C content is 67.6%. Rhodococcus opacus is likely to be transient and not a long-term gut coloniser. (Klatte1994)



  • This organism has been recovered from a soil sample from a leaking gas pipe. 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
  • Strictly aerobic suggests this is unlikely to be a gut coloniser.
    • GENERAL CHARACTERISTICS (Klatte1994);
    Character Response
  • H+
  • Acid from carbohydrates usually produced:
  • fructose; glucose; lactose; maltose; inositol; mannitol; sorbitol;
  • ⥅
  • Substrates assimilated or utilised:
  • N-acetylglucosamine; arabinose; cellubiose; fructose; galactose; gluconate; glucose; inositol; lactose; maltose; mannose; ribose; sucrose; D-turanose; alanine; β-alanine; aspartate; leucine; tyrosine; valine; caprate; citrate; 4-hydroxybenzoate; 2-ketoglutarate; pimelate; quinate; succinate; putrescine; α-ketovalerate; urea; thymidine; NH4+ consumed;
  • ±
  • Strain-dependent substrate utilisation:
  • serine; benzoate; 3-hydroxybenzoate; phenylacetate; 4-aminobenzoate;
  • Active enzymes:
  • catalase;
    • SPECIAL FEATURES
    Character Response
  • ✗
  • VP test:
  • not active
  • Lysozyme:
  • growth observed
  • ✓
  • Nitrate:
  • reduced
  • ✓
  • Nitrite:
  • reduced

    • Details

    GENERAL
    Lineage Physiology General Growth Tolerances Hydrol./digest./degr.
    Phylum:  Actinobacteria Class:  Actinomycetia Order:  Mycobacteriales Family:  Nocardiaceae Genus:  Rhodococcus Gram stain:  + O2 Relation.:  strictly aerobic Spore:  No spore Motility:  Sessile Morphology:  Rod-coccus cycle
    Health:  Unknown
    Source:  a soil sample from a leaking gas pipe
    DNA G+C(%):  67.6
    		Gelatin:  neg Starch:  neg Casein:  neg
    CARBOHYDRATE ACID FORMATION
    Monosaccharide O/F Oligosaccharide O/F Polysaccharide O/F Polyol O/F Other O/F
    Arabinose:  neg Fructose:  + Glucose:  + Mannose:  neg Lactose:  + Maltose:  + Inositol:  + Mannitol:  + Sorbitol:  +
    SUBSTRATE ASSIMILATION & UTILISATION
    Monosaccharide util/assim Oligosaccharide util/assim Other carboh. util/assim Amino acid util/assim Organic acid util/assim
    Arabinose:  + Fructose:  + Galactose:  + Glucose:  + Mannose:  + Rhamnose:  neg Ribose:  + Xylose:  neg Cellubiose:  + Lactose:  + Maltose:  + Sucrose:  + D-Turanose:  + N_Acetyl_glucosamine:  + Gluconate:  + Inositol:  + Ala:  + β-Ala:  + Asp:  + Leu:  + Phe:  neg Pro:  neg Ser:  d Tyr:  + Val:  + Benzoate:  d Caprate:  + Citrate:  + Glutarate:  neg 3-Hydroxybenzoate:  d 4-Hydroxybenzoate:  + Phenylacetate:  d Pimelate:  + Quinate:  + Succinate:  +
    ENZYME ACTIVITY
    Enzymes: General Enzymes: Carbohydrate Enzymes: Protein Enzymes: Arylamidases Enzymes: Esters/fats
    Oxidase:  neg Catalase:  + Xylosidase:  neg

    References

    SPECIFIC REFERENCES FOR RHODOCOCCUS OPACUS
  • Klatte1994 - Rhodococcus opacus sp.nov., An Unusual Nutritionally Versatile Rhodococcus-species
  • ...............................
    • GUT MICROBIOME COMPILATIONS AND METASTUDIES FOR RHODOCOCCUS OPACUS
  • Zeller2014 - Potential of fecal microbiota for early-stage detection of colorectal cancer
  • ...............................
    • Added: October 10, 2022