Riemerella columbina

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

Overview

  • Riemerella columbina is a Gram-negative, non-spore-forming, aerobic, non-motile, rod-shaped bacterium. It has been detected in at least 1 gut microbiome compilation study or metastudy. The DNA G+C content is 36%. Riemerella columbina is probably a rare gut coloniser. (Rubbenstroth2013; Vancanneyt1999)



  • This organism has been recovered from a pigeon palatine cleft, Germany. The risk classification (www.baua.de) for this organism is 2, i.e., risk of individual infection, but low risk of spread (notes: animal pathogen). Could be a possible pathogen in humans, but unknown at this stage. A possible gut commensal.
    • GENERAL CHARACTERISTICS (Rubbenstroth2013); (Vancanneyt1999);
    Character Response
  • Substrates hydrolysed or digested:
  • aesculin; gelatin;
  • 🌡
  • Temperature tolerance:
  • grows at 25℃; grows at 45℃;
  • H+
  • Acid from carbohydrates usually produced:
  • glucose; mannose; maltose;
  • ±
  • Strain-dependent acid from carbs:
  • fructose; sorbose;
  • Active enzymes:
  • alkaline phosphatase; acid phosphatase; Asp arylamidase; catalase; chymotrypsin; esterase lipase C8; α-galactosidase; β-galactosidase; α-glucosidase; β-glucosidase; Leu arylamidase; oxidase; urease; Val arylamidase; naphthol-ASBI-P;
  • ±
  • Strain-dependent active enzymes:
  • cystine arylamidase; esterase C4; trypsin;
    • SPECIAL FEATURES (Rubbenstroth2013); (Vancanneyt1999);
    Character Response
  • ✗
  • Metabolites not produced:
  • indole;
  • ✓
  • VP test:
  • active
  • ✗
  • Nitrate:
  • not reduced
  • Pigments:
  • beige

    • Details

    GENERAL
    Lineage Physiology General Growth Tolerances Hydrol./digest./degr.
    Phylum:  Bacteroidetes Class:  Flavobacteriia Order:  Flavobacteriales Family:  Weeksellaceae Genus:  Riemerella Gram stain:  neg O2 Relation.:  aerobic Spore:  No spore Motility:  Sessile Morphology:  Rod Pigment:  beige
    Health:  Unknown
    Source:  a pigeon palatine cleft, Germany
    DNA G+C(%):  36
    Lower T(℃):  25(+)
    High T(℃):  45(+)
    		Aesculin:  d(+) Gelatin:  +
    CARBOHYDRATE ACID FORMATION
    Monosaccharide O/F Oligosaccharide O/F Polysaccharide O/F Polyol O/F Other O/F
    Fructose:  d Glucose:  + Mannose:  + Sorbose:  d Maltose:  + Trehalose:  neg
    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
    Oxidase:  + Catalase:  + Urease:  d(+) α-Galactosidase:  + β-Galactosidase:  + α-Glucosidase:  + β-Glucosidase:  d(+) ArgDH:  neg Chymotrypsin:  d(+) Trypsin:  d(neg) AspAA:  + CystineAA:  d(neg) LeuAA:  + ValAA:  + AlkalineP:  + AcidP:  + Esterase(C4):  d(neg) EstLip(C8):  +
    METABOLITES - PRODUCTION & USE
    Fuel Usable Metabolites Metabolites Released Special Products Compounds Produced

    		Indole:  neg Pigment:  beige

    References

    SPECIFIC REFERENCES FOR RIEMERELLA COLUMBINA
  • Rubbenstroth2013 - Description of Riemerella columbipharyngis sp. nov., isolated from the pharynx of healthy domestic pigeons (Columba livia f. domestica), and emended descriptions of the genus Riemerella, Riemerella anatipestifer and Riemerella columbina.
  • Vancanneyt1999 - Riemerella columbina sp. nov., a bacterium associated with respiratory disease in pigeons
  • ...............................
    • GUT MICROBIOME COMPILATIONS AND METASTUDIES FOR RIEMERELLA COLUMBINA
  • Forster2019 - A human gut bacterial genome and culture collection for improved metagenomic analyses.
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    • Added: February 09, 2022