Proteus vulgaris
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Classification
Higher order taxa
Domain: Bacteria
Phylum: Proteobacteria
Class: Gamma Proteobacteria
Order: Enterobacteriales
Family: Enterobacteriaceae
Species
P. vulgairs
Description and significance
P. vulgaris is rod-shaped gram-negative chemoheterotroph. It inhabits in gastrointestinal tracts of animal, soil, polluted water, raw meat, and dust.
Proteus can be isolated from a sample of soil. Organism is inoculated in a nutrient agar to form colonies. To test the gram-negative and oxidase-negative characteristics of Enterobacteriaceae, gram stains and the oxidase test are performed. The colonies of interest are then inoculated onto a selective and differential medium-McConkey agar. McConkey agar is suitable for Proteus for two reasons. First reason is that the bile salt constituent allows the growth of Proteus, which is a part of the intestinal flora, while selectively inhibits organisms that are not suitable to grow in interstinal environments. Second reason is that McConkey agar can differentiate the non lactose-fermenting characteristic of Proteus from the lactose-fermenting organisms. Since Proteus is an anaerobic organism, the plate agar can be incubated in an anaerobic jar.[1]
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Genome structure
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Cell structure and metabolism
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Ecology
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Pathology
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Application to Biotechnology
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Current Research
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