DR KARI LOUNATMAA / SCIENCE PHOTO LIBRARY DR KARI LOUNATMAA / SCIENCE PHOTO LIBRARY
Bacillus licheniformis. Coloured transmission electron micrograph of a Bacillus licheniformis bacterium dividing. The cell has elongated and its DNA has separated into two areas. This species can be isolated from soil or air and is not known to cause disease in humans. It produces an antibiotic called bacitracin, which is used in antibacterial skin creams, and an enzyme that makes the cells resistant to penicillin. Magnification: x41, 150 at 6x7cm size. Magnification: x120,000 at 8x10 inch size.
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