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.
P.vulgaris is considered to be pathogenic bacteria. In human, it can cause urinary tract infections, wound infections, and is a common cause of sinus and respiratory infections.
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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