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Bacillus subtilis is a Gram-positive bacterium, rod-shaped and catalase-positive. It was originally named Vibrio subtilis by Christian Gottfried Ehrenberg, [9] and renamed Bacillus subtilis by Ferdinand Cohn in 1872 [10] (subtilis being the Latin for "fine, thin, slender").
Fig1. The sporulation process of Bacillus subtilis. Bacillus subtilis is a rod-shaped, Gram-positive bacteria that is naturally found in soil and vegetation, and is known for its ability to form a small, tough, protective and metabolically dormant endospore.
In a screen of the Bacillus subtilis genome for genes encoding ncRNAs, Saito et al. focused on 123 intergenic regions (IGRs) over 500 base pairs in length, the authors analyzed expression from these regions. Seven IGRs termed bsrC, bsrD, bsrE, bsrF, bsrG, bsrH and bsrI expressed RNAs smaller than 380 nt.
Bacillus subtilis (). The cell wall of Bacillus is a structure on the outside of the cell that forms the second barrier between the bacterium and the environment, and at the same time maintains the rod shape and withstands the pressure generated by the cell's turgor.
Subtilisin is a protease (a protein-digesting enzyme) initially obtained from Bacillus subtilis. [2] [3] [4] [5] [6] [7] [8]Subtilisins belong to subtilases, a group ...
Bacteria of the species Bacillus subtilis were inoculated at the center of a dish with gelose containing nutrients. The bacteria start mass-migrating outwards about twelve hours after inoculation, forming dendrites which reach the border of the dish (diameter 90mm) within a few hours.
The Gram-positive bacterial species Bacillus subtilis produces surfactin for its antibiotic effects against competitors. [3] Surfactin showcases antibacterial, antiviral, antifungal, and hemolytic effects. [4]
Endospore stain on Bacillus subtilis.The spore is stained green and the vegetative cell is stained a pinkish red color. Endospore staining is a technique used in bacteriology to identify the presence of endospores in a bacterial sample. [1]