Taxonomy
Morphology
Cultural characteristics
Biochemical characters
Ecology
Pathogenicity
References
Phylum Proteobacteria, Class Gammaproteobacteria, Order Pasteurellales, Family Pasteurellaceae, Genus Pasteurella, Pasteurella
testudinis Snipes and Biberstein 1982. Species "Incertae Sedis“.
Coccobacillary Gram-negative cells.
Colonies are beta-hemolytic on sheep blood agar and V-factor independent.
Growth on MacConkey is variable.
Isolated from Californian desert tortoises (Gopherus agassizii).
Isolated from healthy tortoises and from tortoises with upper respiratory tract disease.
- 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, 10 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, oxidase, alkaline phosphatase, catalase, indole
production, ONPG, acid production from: D(+) xylose, meso-inositol, mannitol,
D(-) sorbitol, D(+) galactose, D(+) glucose, L(+) rhamnose, maltose, D(+) melibiose,
sucrose and esculin.
Negative results for gelatinase, H2S production, Voges-Proskauer reaction, urease, arginine dehydrolase, lysine decarboxylase,
ornithine decarboxylase, gas from D-glucose, acid production from: glycerol, dulcitol, D(+) mannose, inulin, salicin, cellobiose and
lactose.
Variable results for acid production from L(+) arabinose, trehalose, raffinose and dextrin.
(c) Costin Stoica