Phylum Proteobacteria, Class Gammaproteobacteria, Order Pasteurellales, Family Pasteurellaceae, Genus Volucribacter,
Volucribacter psittacicida Christensen et al. 2004, type species of the genus.
Old synonym: Bisgaard taxon 33, biovar 1.
Gram-negative, nonmotile rods.
Colonies on on blood agar are nonhaemolytic, circular and slightly raised with an
entire margin, smooth, shiny and opaque with a greyish tinge, 1.0-1.5 mm in diameter
after aerobic incubation at 37 ºC for 24 hours. After incubation for 48 hours, a diameter
of 2.0 mm might be reached. The consistency is buttery and colonies do not adhere to
the agar surface. No growth on MacConkey agar. No pigments are produced.
Isolated from parrots, budgerigars, parakeets and a chicken.
May be involved in respiratory tract infections or septicaemia in birds.
- Christensen H., Bisgaard M., Aalbaek B. & Olsen J.E.: Reclassification of Bisgaard taxon 33, with proposal of Volucribacter
psittacicida gen. nov., sp. nov. and Volucribacter amazonae sp. nov. as new members of the Pasteurellaceae. Int. J. Syst. Evol.
Microbiol., 2004, 54, 813-818.
Positive results for phosphatase, methyl red, acid production from: L-fucose, dextrin,
D-fructose, D-glucose (without gas), glycerol, D-mannose, sucrose, D-ribose,
D-galactose & raffinose (positive after 2-3 or more days).
Negative results for ONPG, Simmons’ citrate, H2S formation in TSI, KCN growth, Voges–Proskauer, gas from nitrate, urease, arginine
dihydrolase, lysine decarboxylase, ornithine decarboxylase, phenylalanine deaminase, indole production, gelatinase, hydrolysis of
Tween 20 or 80, alpha-fucosidase, alpha-glucosidase, alpha-galactosidase, beta-glucuronidase, alpha-mannosidase, beta-
xylosidase, acid production from: mucate, meso-erythritol, adonitol, D-arabitol, xylitol, L-xylose, dulcitol, D-mannitol, D-sorbitol, fucose,
dextrin, L-rhamnose, L-sorbose, trehalose, cellobiose, D-melezitose, D-glycogen, inulin, aesculin, amygdalin, arbutin, maltose, D-
melibiose, gentiobiose, salicin, D-turanose, lactose, L-arabinose, D-arabinose, meso-inositol & N-methyl beta-glucosamide.
Variable results for catalase, oxidase, ONPG, acid production from: glycerol, meso-inositol, maltose & D-xylose.
(c) Costin Stoica