"Bacillus 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 and humans. A member of the genus Bacillus, B. subtilis is rod-shaped, and can form a tough, protective endospore, allowing it to tolerate extreme environmental conditions. B. subtilis has historically been classified as an obligate aerobe, though evidence exists that it is a facultative aerobe. B."@en . . . . . . "* Until 2008 Bacillus globigii was thought to be B. subtilis but is since formally recognized asBacillus atrophaeus." . . . . "* Vibrio subtilis" . .