| Gallibacterium melopsittaci |
Taxonomy
Morphology
Cultural characteristics
Biochemical characters
Ecology
Pathogenicity
References
Phylum Proteobacteria, Class Gammaproteobacteria, Order Pasteurellales, Family Pasteurellaceae, Genus Gallibacterium,
Gallibacterium melopsittaci Bisgaard, Korczak, Busse, Kuhnert, Bojesen and Christensen 2009.
Synonym: Bisgaard Taxon 3, 1982.
Gallibacterium melopsittaci Bisgaard, Korczak, Busse, Kuhnert, Bojesen and Christensen 2009.
Synonym: Bisgaard Taxon 3, 1982.
Gram-negative, usually bipolar, nonmotile cocobacilli, occuring singly or in pairs.
Colonies on bovine-blood agar are non-haemolytic, greyish, non-transparent ,
smooth and shiny, circular, slightly raised with entire margin and 1-2 mm in diameter
after 24 h at 37 ºC; adherence to the agar is absent and the consistency of the
colonies is unguent-like. Facultative anaerobic or microaerophilic. Pigment is not
formed. No V-factor requirement. Growth on MacConkey is variable.
smooth and shiny, circular, slightly raised with entire margin and 1-2 mm in diameter
after 24 h at 37 ºC; adherence to the agar is absent and the consistency of the
colonies is unguent-like. Facultative anaerobic or microaerophilic. Pigment is not
formed. No V-factor requirement. Growth on MacConkey is variable.
Isolated from septicaemia of parakeets and budgerigars and salpingitis in a parakeet.
Negative in symbiotic growth.
Negative in symbiotic growth.
Associated with septicaemia and salpingitis in parakeets and budgerigars.
- Bisgaard M, Korczak BM, Busse HJ, Kuhnert P, Bojesen and Christensen H, 2009. Classification of the taxon 2 and taxon 3
complex of Bisgaard within Gallibacterium and description of Gallibacterium melopsittaci sp. nov., Gallibacterium
trehalosifermentans sp. nov. and Gallibacterium salpingitidis sp. nov. IJSEM 59, 735-744.
Description is based mostly on API 20E, API STAPH, API ZYM results.
Positive results for acid and alkaline phosphatase, alanine aminopeptidase, beta-galactosidase (ONPG), beta-xylosidase (ONPX),
alpha-galactosidase, methyl red, nitrates reduction, acid production from fructose, galactose, glucose (without gas production),
gluconate, glycerol (in 3-14 days), lactose (in 14 days), mannitol, mannose, melibiose, raffinose, ribose (in 14 days), and sucrose.
Negative results for arginine dehydrolase, alpha-fucosidase, alpha-glucosidase (PNPG), gelatinase, H2S (TSI), indole production,
beta-glucuronidase, lysine decarboxylase, ornithine decarboxylase, phenylalanine deaminase, alpha-mannosidase, citrate
(Simmons), Tween 20 and 80 hydrolysis, urease, Voges-Proskauer test, acid production from adonitol, amygdalin, arbutin, D- and
L-arabitol, cellobiose, dextrin, erythritol, esculin, D-fucose, beta-gentiobiose, glycogen, inulin, 2- and 5-ketogluconate, D-lyxose,
maltose, melezitose, rhamnose, salicin, sorbose, starch, tagatose, trehalose, turanose, xylitol, N-acetylglucosamine, and methyl
alpha-D-glucopyranoside.
Variable results for catalase, oxidase, acid production from L- and D-arabinose, dulcitol, L-fucose, inositol, sorbitol, and xylose.
Positive results for acid and alkaline phosphatase, alanine aminopeptidase, beta-galactosidase (ONPG), beta-xylosidase (ONPX),
alpha-galactosidase, methyl red, nitrates reduction, acid production from fructose, galactose, glucose (without gas production),
gluconate, glycerol (in 3-14 days), lactose (in 14 days), mannitol, mannose, melibiose, raffinose, ribose (in 14 days), and sucrose.
Negative results for arginine dehydrolase, alpha-fucosidase, alpha-glucosidase (PNPG), gelatinase, H2S (TSI), indole production,
beta-glucuronidase, lysine decarboxylase, ornithine decarboxylase, phenylalanine deaminase, alpha-mannosidase, citrate
(Simmons), Tween 20 and 80 hydrolysis, urease, Voges-Proskauer test, acid production from adonitol, amygdalin, arbutin, D- and
L-arabitol, cellobiose, dextrin, erythritol, esculin, D-fucose, beta-gentiobiose, glycogen, inulin, 2- and 5-ketogluconate, D-lyxose,
maltose, melezitose, rhamnose, salicin, sorbose, starch, tagatose, trehalose, turanose, xylitol, N-acetylglucosamine, and methyl
alpha-D-glucopyranoside.
Variable results for catalase, oxidase, acid production from L- and D-arabinose, dulcitol, L-fucose, inositol, sorbitol, and xylose.
(c) Costin Stoica
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