Pasteurellales

species of bacterium

__NOTOC__ 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.

The Pasteurellaceae comprise a large family of Gram-negative bacteria. Most members live as commensals on mucosal surfaces of birds and mammals, especially in the upper respiratory tract. Pasteurellaceae are typically rod-shaped, and are a notable group of facultative anaerobes. Their biochemical characteristics can be distinguished from the related Enterobacteriaceae by the presence of oxidase, and from most other similar bacteria by the absence of flagella.

Actinobacillus is a genus of Gram-negative, nonmotile and non-spore-forming, oval to rod-shaped bacteria occurring as parasites or pathogens in mammals, birds, and reptiles. It is a member of the family Pasteurellaceae. The bacteria are facultatively anaerobic or aerobic, capable of fermenting carbohydrates (without production of gas), and of reducing nitrates. The genomic DNA contains between 40 and 47 mol % guanine plus cytosine.

species of bacterium

Aggregatibacter is a genus in the phylum Pseudomonadota (Bacteria), which contains three species, namely: A. actinomycetemcomitans (Klinger 1912) Nørskov-Lauritsen and Kilian 2006, (type species of the genus); (from Greek noun (ἀκτίς, ἀκτῖνος), a beam; Greek mukēs -ētos, mushroom or other fungus; Neo-Latin actinomyces -etis, an actinomycete; Latin comitans, accompanying; Neo-Latin actinomycetemcomitans, accompanying an actinomycete) A. aphrophilus (Khairat 1940) Nørskov-Lauritsen and Kilian 2006, (from Ancient Greek , foam; New Latin from Greek (φίλος) meaning friend, loving; New Latin aphro