Effects of Antibiotics on Bacteria

Effects of the antibiotic Polymyxin B on Salmonella bacteria. The left image shows an intact dividing Salmonella enterica and the right image shows a bacterium after the incubation with Polymyxin B for 30 min. Both 5 µm x 5 µm images were taken in AC mode. Courtesy of A. Böhling and T. Gutsmann, Leibniz-Center for Medicine and Biosciences.