Question

Hi,

1. I need to write my unknown lab report, but I am having a hard time confirming if Bacillus megatherium is an obligate aerobe or facultative anaerobe?

2. does bacillus megatherium produce any pigmentation?

3. how does it grow on slant and broth culture?

thank you!

Answer 1

1. Bacillus megaterium is a Gram-positive, rod shaped Endospore-forming Bacteria. It is considered Aerobic, but, it is also capable of growing under anaerobic conditions when necessary. tThus it is a facultative anaerobe.

2. Bacillus megaterium spores contained a unique red pigment in their membranes that was not found in other species. This red pigment, presumably a carotenoid, was synthesized about the time of dipicolinic acid synthesis during sporulation and was associated with the forespores.

3. Not sure about this one.