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15 Οκτ 2020 · Bacillus subtilis, hay bacillus, or grass bacillus was one of the first Gram-positive bacteria to be studied. It is an aerobic, rod-shaped spore-forming microorganism that can spread in extreme cold, heat, and even disinfected environments.
Bacillus subtilis (/ b ə ˈ s ɪ l. ə s s u b ˈ t iː. l i s /), [3] [4] 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.
7 Ιουλ 2022 · Bacillus subtilis is a Gram-positive, rod-shaped bacterium that is the type species of the genus Bacillus, commonly used as a model organism to describe the structure of different species of the genus.
B. subtilis is a fast-growing, Gram-positive, aerobic bacterium with rod-shaped cells that are typically 2–6 µm long and just less than 1 µm in diameter. The optimal growth temperature is about 30–35 C, giving a doubling time of as little as 20 min.
Bacillus subtilis is one of the best characterized bacteria and is used as a model organism for Gram-positive bacteria. B. subtilis is a rod-shaped bacterium, which produces endospores that allow the survival of extreme environmental conditions including heat and desiccation.
Bacillus subtilis is the most characterized gram-positive bacterium that has significant attributes, such as growing well on cheap carbon sources, possessing clear inherited backgrounds, having mature genetic manipulation methods, and exhibiting robustness in large-scale fermentations.
Bacillus, any of a genus of rod-shaped, gram-positive, aerobic or (under some conditions) anaerobic bacteria widely found in soil and water. Some types of Bacillus bacteria are harmful to humans, plants, or other organisms.
