18 - Proteus

P. mirabilis

In the Proteus genus, this has the greatest significance as an opportunistic pathogen of animals.

Swarming

Proteus produce a ___ growth on agar media which forms a uniform film over the surface

Urease, phenylalanine deaminase, and hydrogen sulfide

What does proteus species produce

P. vulgaris

This proteus species produces indole

Straight

Proteus organisms are ___, gram (-) rods, 0.5 um in width, by 1.0-3.0 in length

Peritrichous

Proteus organisms have many __ flagella

feces

Proteus is easily demonstrable in the __ of animals, especially those of dogs and hogs

Diarrhea in young animals with otitis externa in dogs, and UTI in spayed bitches

Where is proteus associated with?

Urease

This production is essential in virulence factor of proteus since the resultant ammonia is histotoxic

spoilage of meat

Proteus are also important in the __ because they grow they grow and spread readily on moist sur¬ faces at low temperatures and produce a number of proteases.

P. mirabilis

This proteus species is generally sensitive to ampicillin, cephalosporins, chloramphenicol, kanamycin, penicillins, and streptomycin.

P. vulgaris

This species is is often resistant to penicillins and cephalosporins.

bacitracin, colistin, and polymyxin B

P. mirabilis and P. vulgaris are naturally resistant to __