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.: | |||||||||
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 15 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: | 2020-10-28 |
News |
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New names of bacterial phyla![]() The taxonomic category phylum was previously not regulated by the International Code of Nomenclature of Prokaryotes (ICNP), but now this has changed and it was decided to revise the names of bacterial phyla. All phyla must be written in italics (which has been done on VetBact also before) and have the ending -ota. Published 2023-03-01. Read more... |
The taxonomy of chlamydias Species within the family Chlamydiaceae were previously divided into two genera Chlamydia and Chlamydophila. However, the differences between these two genera were not that great and many research groups have not accepted this division. Therefore, the genus Chlamydophila has been returned to the genus Chlamydia and this change has now been incorporated in VetBact Published 2023-03-15. Read more... |