Fig. 7.

5-Iodoindole does not affect cell morphology. Exponential-phase cultures of E. coli K-12 BW25113 (a) or S. aureus (MSSA) 6538 (b) were exposure to rifampicin (100 μg mL⁻¹) for 30 min and then incubated with 5-iodoindole (2 mM) or DMSO for 1 h then visualized by transmission electron microscopy. The scale bars represent 500 nm