| Caviibacterium pharyngocola |
Taxonomy
Morphology
Cultural characteristics
Biochemical characters
Ecology
Pathogenicity
References
Phylum Pseudomonadota (Proteobacteria), Class Gammaproteobacteria, Order Pasteurellales, Family Pasteurellaceae, Genus
Caviibacterium, Caviibacterium pharyngocola Adhikary et al. 2018, type species of the genus.
Synonym: Bisgaard taxon 5.
Caviibacterium, Caviibacterium pharyngocola Adhikary et al. 2018, type species of the genus.
Synonym: Bisgaard taxon 5.
Gram-negative, pleomorphic rods. Non-motile.
Colonies on blood agar are approximately 2 mm in diameter, smooth and shiny,
without pigment, opaque, circular and slightly raised with an entire margin and soft
consistency after 24 h aerobic incubation at 37 ºC. Non-haemolytic on 5% bovine
blood agar. No requirement for X-factor (positive in porphyrin synthesis) or V-factor (no
NAD requirement). No growth with KCN. No growth on MacConkey medium.
without pigment, opaque, circular and slightly raised with an entire margin and soft
consistency after 24 h aerobic incubation at 37 ºC. Non-haemolytic on 5% bovine
blood agar. No requirement for X-factor (positive in porphyrin synthesis) or V-factor (no
NAD requirement). No growth with KCN. No growth on MacConkey medium.
Isolated from pharynx of guinea pigs.
Undetermined.
- Adhikary S, Bisgaard M, Nicklas W, Christensen H. Reclassification of Bisgaard taxon 5 as Caviibacterium pharyngocola gen.
nov., sp. nov. and Bisgaard taxon 7 as Conservatibacter flavescens gen. nov., sp. nov. Int J Syst Evol Microbiol 2018; 68:643-650.
Positive results for alanine amino peptidase, alkaline phosphatase, alpha- and beta-galactosidase, nitrate reduction (without gas),
oxidase, porphyrin, acid production from: L(+) arabinose, dextrin, D(-) fructose, L(-) fucose, D-galactose, D(+) glucose (with gas
production), lactose, D(+) mannose, maltose, melibiose, raffinose and sucrose.
Negative results for arginine dihydrolase, catalase (or weak), Simmon’s citrate, esculin hydrolysis, alpha-fucosidase, gelatinase,
alpha- and beta-glucosidase, beta-glucuronidase, H2S production (TSI test ), indole production, lysine decarboxylase, methyl red test,
alpha-mannosidase, ornithine decarboxylase, phenylalanine deaminase, urease, Voges-Proskauer test, beta-xylosidase, acid
production from: adonitol, amygdalin, arbutin, D(-) arabinose, D(+) arabitol, cellobiose, dulcitol, D(+) fucose, esculin, meso-erythritol,
inulin, gentibiose, D(-) mannitol, D(+) melezitose, mucate, L(+) rhamnose, salicin, D(-) sorbitol, L(-) sorbose, trehalose, turanose,
xylitol, D(+) and L(-) xylose.
Variable results for acid production from: glycerol, glycogen and meso-inositol.
oxidase, porphyrin, acid production from: L(+) arabinose, dextrin, D(-) fructose, L(-) fucose, D-galactose, D(+) glucose (with gas
production), lactose, D(+) mannose, maltose, melibiose, raffinose and sucrose.
Negative results for arginine dihydrolase, catalase (or weak), Simmon’s citrate, esculin hydrolysis, alpha-fucosidase, gelatinase,
alpha- and beta-glucosidase, beta-glucuronidase, H2S production (TSI test ), indole production, lysine decarboxylase, methyl red test,
alpha-mannosidase, ornithine decarboxylase, phenylalanine deaminase, urease, Voges-Proskauer test, beta-xylosidase, acid
production from: adonitol, amygdalin, arbutin, D(-) arabinose, D(+) arabitol, cellobiose, dulcitol, D(+) fucose, esculin, meso-erythritol,
inulin, gentibiose, D(-) mannitol, D(+) melezitose, mucate, L(+) rhamnose, salicin, D(-) sorbitol, L(-) sorbose, trehalose, turanose,
xylitol, D(+) and L(-) xylose.
Variable results for acid production from: glycerol, glycogen and meso-inositol.
(c) Costin Stoica
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