![]() ![]() subtilis has proven highly amenable to genetic manipulation, and has become widely adopted as a model organism for laboratory studies, especially of sporulation, which is a simplified example of cellular differentiation. subtilis is heavily flagellated, which gives it the ability to move quickly in liquids.ī. subtilis is a facultative anaerobe and had been considered as an obligate aerobe until 1998. Īs with other members of the genus Bacillus, it can form an endospore, to survive extreme environmental conditions of temperature and desiccation. subtilis cells are typically rod-shaped, and are about 4–10 micrometers (μm) long and 0.25–1.0 μm in diameter, with a cell volume of about 4.6 fL at stationary phase. It was originally named Vibrio subtilis by Christian Gottfried Ehrenberg, and renamed Bacillus subtilis by Ferdinand Cohn in 1872 (subtilis being the Latin for "fine, thin, slender"). Description īacillus subtilis is a Gram-positive bacterium, rod-shaped and catalase-positive. ![]() It is one of the bacterial champions in secreted enzyme production and used on an industrial scale by biotechnology companies. subtilis is considered the best studied Gram-positive bacterium and a model organism to study bacterial chromosome replication and cell differentiation. subtilis has historically been classified as an obligate aerobe, though evidence exists that it is a facultative anaerobe. subtilis is rod-shaped, and can form a tough, protective endospore, allowing it to tolerate extreme environmental conditions. īacillus subtilis, known also as the hay bacillus or grass bacillus, is a Gram-positive, catalase-positive bacterium, found in soil and the gastrointestinal tract of ruminants, humans and marine sponges. subtilis but is since formally recognized as Bacillus atrophaeus. Until 2008 Bacillus globigii was thought to be B. ![]()
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