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Veterinary bacteriology: information about important bacteria
Veterinary bacteriology


Species/Subspecies: Pasteurella caballi
Category: In the normal flora
Etymology: Genus name: named after Louis Pasteur.
Species epithet: of a horse.
Significance:  [Of minor importance]   
Taxonomy:
Phylum
Proteobacteria
Class
Gammaproteobacteria
Order
Pasteurellales
Family
Pasteurellaceae 
Genus
Pasteurella
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-glucoselactosemaltoseL-rhamnosesucrose
++??+
L-arabinosecellobioseD-mannitolsalicintrehalose
?-?--
glycerolinulinraffinoseD-sorbitolstarch
?-??-
Other carbohydrates: Dulcitol -, D-fructose +, D-galactose +, D-mannose +.
Gas production: D-Glukos +.
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.
Hosts: Horse, pig, human
Clinical Picture:
16S rRNA Seq.:
Acc-noStrainNumber of NTOperon
AY362918 ATCC 49197T 1 362  

Taxonomy/phylogeny:
 
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

The revised taxonomy of the mollicutes

The revised taxonomy of mollicutes (mycoplasmas) has now been introduced on VetBact, which means that many of the species have been given new genus names or moved to another higher taxon. 

Published 2021-11-25. Read more...

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