(A–C) Phase-contrast micrographs of S. aureus 8325-4 bacteria treated with DMSO vehicle (A), 3 µg/mL TXY536 (B), or 3 µg/mL PC (C). (D–F) Fluorescence micrographs of B. subtilis FG347 bacteria that express a GFP-tagged, FtsZ Z-ring marker protein termed ZapA. The bacteria were treated with DMSO vehicle (D), 3 µg/mL TXY536 (E), or 3 µg/mL PC (F).