Taxonomy
Morphology
Cultural characteristics
Biochemical characters
Ecology
Pathogenicity
References
Phylum Proteobacteria, Class Gammaproteobacteria, Order Pasteurellales, Family Pasteurellaceae, Genus Pasteurella, Pasteurella
langaa Mutters, Ihm, Pohl, Frederiksen and Mannheim, 1985.
P. langaa changed to P. langaaensis - corrected by Trüper and De' Clari 1998.
Non-motile, Gram-negative, coccobacillary cells.
Nonhemolytic, 1.5 mm in diameter, smooth & grayish-white colonies. V-factor
independent growth. Can grow on MacConkey agar.
Isolated from the respiratory tract of chickens.
Strains are found in the respiratory tract of apparently healthy chickens.
- R. Mutters, H. Christensen, M. Bisgaard, 2004. Genus I. Pasteurella. In: Bergey’s Manual of Systematic Bacteriology, Second
edition, Vol two, part B, George M. Garrity (Editor-in-Chief), pp. 857-866.
- W.M. Janda, R. Mutters, 2006. Pasteurella, Mannheimia, Actinobacillus, Eikenella, Kingella, Capnocytophaga, and other
miscellaneous Gram-negative rods. In: Topley & Wilson’s Microbiology and Microbial Infections, 10th edition, Vol. 2, Bacteriology,
Edward Arnold Ltd.
- J. G. Holt et al., 1994. Facultatively Anaerobic Gram-Negative Rods. Subgroup 3. Family Pasteurellaceae. In: Begey’s Manual of
Determinative Bacteriology, 9th-edition, Williams & Wilkins, pp 194-196.
Positive results for nitrates reduction, alkaline phosphatase, ONPG, acid production
from: mannitol, D(-) fructose, D(+) glucose (without gas), D(+) galactose, D(+)
mannose, sucrose & lactose.
Oxidase activity is variable.
Negative results for catalase, citrate (Simmons), gelatinase, H2S production (TSI), Voges-Proskauer test, alpha-glucosidase, urease,
arginine dehydrolase, lysine decarboxylase, ornithine decarboxylase, indole production, acid production from: glycerol, xylitol, L(+)
arabinose, D(-)arabinose, D(+)xylose, dulcitol, meso-inositol, D(-) sorbitol, L(-) fucose, L(+) rhamnose, L(-) sorbose, cellobiose,
maltose, D(+) melibiose, trehalose, raffinose, dextrin, inulin, esculin & salicin.
(c) Costin Stoica