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Veterinary bacteriology: information about important bacteria
Veterinary bacteriology


Species/Subspecies: Pasteurella multocida subsp. multocida
Categories: Zoonotic; notifiable diseases and bacteria
Etymology: Genus name: named after Louis Pasteur.
Species epithet: a lot of killing.
Subspecies epithet: see Species epithet.
Significance:  [Very important]   
Taxonomy:
Phylum
Proteobacteria
Class
Gammaproteobacteria
Order
Pasteurellales
Family
Pasteurellaceae 
Genus
Pasteurella
Type Strain: ATCC 43137 = CCUG 17976 B och 43504 = NCTC 10322.
Macromorphology (smell):
   
Small mucoid or dry colonies (1-2 mm in diameter). No hemolysis on blood agar, but some strains give a greenish decolorization.
Micromorphology: Small non-motile short rods or coccoid rods (0.3-1.0 x 1.0-2.0 µm), which appear singly, in pairs or as short chains (rarely).
Gram +/Gram -:
 
G-
Metabolism: Facultatively anaerobic
Catalase/Oxidase:+/(+)
Other Enzymes: Ornithine decarboxylase +, tryptophanase + (= indole +), urease -.
Biochemical Tests: Citrate -, hydrogen sulphid (H2S) -, methyl red -, Voges-Proskauer -.
Fermentation of carbohydrates:
D-glucoselactosemaltoseL-rhamnosesucrose
+---+
L-arabinosecellobioseD-mannitolsalicintrehalose
--+-+
glycerolinulinraffinoseD-sorbitolstarch
v--+?
Other carbohydrates: D-Mannose +.
Gas production: Glucose -.
Spec. Char.:
Disease:Atrophic rhinitis in pig. Pneumonia in ruminants, pig and rodents. Hemorrhagic septicemia and mastitis in cattle. Avian pasteurellosis or avian cholera (a more serious form of avian pasteurellosis) in poultry (particularly chicken, turkey, ducks and geese).
Hosts: Cattle, rabbit, pig, dog, cat and birds.
Clinical Picture:
Virulence Factors: Dermonecrotic toxines of P. multocida subsp. multocida of capsular type A and D, which causes atrophic rhinitis in pig.
Genome Sequence:
Acc-noStrainSize (bp)Genome
NC_002663 PM70 2 257 487 1c + 0 

16S rRNA Seq.:
Acc-noStrainNumber of NTOperon
AY078999 NCTC 10322T 1 468 

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.
Comment:Atrophic rhinitis is notifiable in Sweden. Pasteurella infections may be zoonotic and associated with cat bites. Fermentation of D-sorbitol and trehalose can be used for identification of subspecies.
Updated:2020-12-10

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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