|Description:||Under the low-power magnification of 20X of a digital Keyence scope, this photograph depicts the colonial growth displayed by Gram-positive Bacillus megaterium bacteria, which were cultured on phenylethyl alcohol agar (PEA) medium, for a 24 hour time period, at a temperature of 37°C.|
B. megaterium is one of the largest known soil-inhabiting bacteria, hence its Latin name. It is also not normally thought of as a pathogenic organism. Due to its ability to produce penicillin amidase, this bacterium is used in the pharmaceutical industry when manufacturing penicillin, as well as in the modification of various corticosteroids. As an endospore-forming organism, B. megaterium can survive in very harsh environments, only becoming reanimated when conditions become favorable.