| Avibacterium endocarditidis |
Taxonomy
Morphology
Cultural characteristics
Biochemical characters
Ecology
Pathogenicity
References
Phylum Pseudomonadota (Proteobacteria), Class Gammaproteobacteria, Order Pasteurellales, Family Pasteurellaceae, Genus
Avibacterium, Avibacterium endocarditidis Bisgaard et al. 2007.
Synonym: Bisgaard taxon 50.
Avibacterium, Avibacterium endocarditidis Bisgaard et al. 2007.
Synonym: Bisgaard taxon 50.
Gram-negative, pleomorphic rods. Non-motile.
Colonies on blood are regular, circular, slightly raised, non-haemolytic, with an entire
margin, 1.0-1.5 mm in diameter after aerobic incubation for 24 h at 37 ºC. The surface
of the colonies is smooth, shiny and opaque with a greyish tinge. The consistency of
the colonies is butyrous and do not adhere to the agar surface. Symbiotic growth
was not observed. No growth on MacConkey agar. Negative for KCN growth. Aerobic.
margin, 1.0-1.5 mm in diameter after aerobic incubation for 24 h at 37 ºC. The surface
of the colonies is smooth, shiny and opaque with a greyish tinge. The consistency of
the colonies is butyrous and do not adhere to the agar surface. Symbiotic growth
was not observed. No growth on MacConkey agar. Negative for KCN growth. Aerobic.
Isolated from valvular endocarditis in adult broiler parents.
Undetermined.
- Bisgaard M, Christensen JP, Bojesen AM, Christensen H. Avibacterium endocarditidis sp. nov., isolated from valvular endocarditis
in chickens. Int J Syst Evol Microbiol 2007; 57:1729-1734.
Positive results for alanine aminopeptidase, catalase, alpha-glucosidase, beta-galactosidase, nitrate reduction, oxidase, acid
production from: dextrin, D(+)-glucose (without gas), glycerol, inositol (delayed), D(-)-fructose, D(+)-galactose,D(+)-mannose, maltose,
D(-)-mannitol, raffinose, D(-)-ribose, D(-)-sorbitol, sucrose, trehalose and D(+)-xylose (delayed).
Can assimilate (API 20 NE): glucose, mannose, mannitol, N-acetylglucosamine, maltose, gluconate and malate.
Negative results for arginine dihydrolase, Simmons’ citrate, beta-glucosidase, alpha-fucosidase, beta-xylosidase, beta-glucuronidase,
alpha-galactosidase, alpha-mannosidase, H2S production (TSI), indole production, gelatinase, lysine decarboxylase, mucate,
malonate, methyl red test, ornithine decarboxylase, phenylalanine deaminase, Tweens 20 and 80 hydrolysis, urease, Voges-Proskauer
test, acid production from: meso-erythritol, adonitol, D(+)-arabitol, xylitol, L(+)-arabinose, D(-)-arabinose, L(-)-xylose, dulcitol, D(+)-
fucose, L(-)-fucose, L(+)-rhamnose, L(-)-sorbose, cellobiose, lactose, D(+)-melibiose, D(+)-melezitose, D(+)-glycogen, inulin,
aesculin, amygdalin, arbutin, gentiobiose, salicin and D(+)-turanose.
No assimilation of: arabinose, caprate, adipate,citrate and phenylacetate.
production from: dextrin, D(+)-glucose (without gas), glycerol, inositol (delayed), D(-)-fructose, D(+)-galactose,D(+)-mannose, maltose,
D(-)-mannitol, raffinose, D(-)-ribose, D(-)-sorbitol, sucrose, trehalose and D(+)-xylose (delayed).
Can assimilate (API 20 NE): glucose, mannose, mannitol, N-acetylglucosamine, maltose, gluconate and malate.
Negative results for arginine dihydrolase, Simmons’ citrate, beta-glucosidase, alpha-fucosidase, beta-xylosidase, beta-glucuronidase,
alpha-galactosidase, alpha-mannosidase, H2S production (TSI), indole production, gelatinase, lysine decarboxylase, mucate,
malonate, methyl red test, ornithine decarboxylase, phenylalanine deaminase, Tweens 20 and 80 hydrolysis, urease, Voges-Proskauer
test, acid production from: meso-erythritol, adonitol, D(+)-arabitol, xylitol, L(+)-arabinose, D(-)-arabinose, L(-)-xylose, dulcitol, D(+)-
fucose, L(-)-fucose, L(+)-rhamnose, L(-)-sorbose, cellobiose, lactose, D(+)-melibiose, D(+)-melezitose, D(+)-glycogen, inulin,
aesculin, amygdalin, arbutin, gentiobiose, salicin and D(+)-turanose.
No assimilation of: arabinose, caprate, adipate,citrate and phenylacetate.
(c) Costin Stoica
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