Other Definitions
bacillus subtilis (dict)
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Bacillus SubtilisBacillus subtilis is a Gram-positive, rod-shaped, aerobic bacterium that is commonly found in soil. An important property of Bacillus subtilis is its ability to form a tough, protective endospore, which allows it tolerate extreme environmental conditions. It is not considered a human pathogen, but can contaminate food and rarely cause food poisoning. B. subtilis has proven highly amenable to genetic manipulation, and has therefore become widely adopted as a model organism for laboratory studies, especially of sporulation, which is a simplified example of cellular differentiation. In terms of popularity as a laboratory workhorse B. subtilis can be considered the Gram-positive equivalent of E. coli, an extensively studied Gram-negative rod.
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