Pasteurella

Pasteurella
Gram-stained photomicrograph depicting numerous Pasteurella multocida bacteria
Scientific classification
Domain: Bacteria
Kingdom: Pseudomonadati
Phylum: Pseudomonadota
Class: Gammaproteobacteria
Order: Pasteurellales
Family: Pasteurellaceae
Genus: Pasteurella
Trevisan 1887
Type species
Pasteurella multocida
(Lehmann and Neumann 1899) Rosenbusch and Merchant 1939 (Approved Lists 1980)
Species

P. aerogenes
P. anatis
P. avium
P. bettyae
P. caballi
P. canis
P. dagmatis
P. gallicida
P. gallinarum
P. granulomatis
P. langaaensis
P. lymphangitidis
P. mairii
P. multocida
P. oralis
P. pneumotropica
P. skyensis
P. stomatis
P. testudinis
P. trehalosi
P. ureae
P. volantium

Pasteurella is a genus of Gram-negative, facultatively anaerobic bacteria. Pasteurella species are nonmotile and pleomorphic, and often exhibit bipolar staining ("safety pin" appearance). Most species are catalase- and oxidase-positive. The genus is named after the French chemist and microbiologist, Louis Pasteur, who first identified the bacterium now known as Pasteurella multocida as the agent of chicken cholera.