| Species/Subspecies: | Pasteurella caballi | ||||||||
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| Category: | In the normal flora | ||||||||
| Etymology: | Genus name: named after Louis Pasteur. Species epithet: of a horse. | ||||||||
| Significance: | [Of minor importance] | ||||||||
| Taxonomy: | Class Gammaproteobacteria Order Pasteurellales Family Pasteurellaceae Genus Pasteurella |
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| Type Strain: | 83851 = ATCC 49197 = CCUG 28833. | ||||||||
| Macromorphology (smell): | Small grayish-yellow colonies (1-1.5 mm in diameter), which does not give hemolysis on blood agar. | ||||||||
| Micromorphology: | Non-motile rods (0.8-1.0 x 1.3-1.9 µm), which appear singly or in pairs. | ||||||||
| Gram +/Gram -: | G- | ||||||||
| Metabolism: | Facultatively anaerobic | ||||||||
| Catalase/Oxidase: | -/+ | ||||||||
| Other Enzymes: | Esculinase -, ornithine decarboxylase +, tryptophanase -, urease - | ||||||||
| Biochemical Tests: | Citrate -, methyl red - (i.e. does not have mixed acid fermentation), Voges-Proskauer -, | ||||||||
| Fermentation of carbohydrates: | D-glucose + lactose + maltose ? L-rhamnose ? sucrose + L-arabinose ? cellobiose - D-mannitol ? salicin - trehalose - glycerol ? inulin - raffinose ? D-sorbitol ? starch - Gas production: D-Glukos +. |
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| Spec. Char.: | |||||||||
| Special Media: | |||||||||
| Disease: | Is an opportunist, which belongs to the normal flora of the upper respiratory tract. May cause respiratory tract infections. Wound infection in human has been reported. |
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| Hosts: | Horse, pig, human | ||||||||
| Clinical Picture: | |||||||||
| 16S rRNA Seq.: |
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| Taxonomy/phylogeny:
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About 12 species have been described within genus Pasteurella, but the relationship between members within the closely related genera Actinobacillus, Haemophilus, Mannheimia and Pasteurella is very uncertain since none of these genera forms monophyletic clusters. | ||||||||
| Updated: | 2024-10-23 |