Rearrangements of microfilaments are associated with stromule movement Time-lapse images of a plastid with stromule in dark-grown hypocotyl epidermis. Images were taken at 25 second intervals. A-D) DIC images show a plastid body drifting from left to right across the cytoplasm (arrows). While the plastid's net displacement is to the right, it stutters back and forth along its course. E-H) Fluorescence micrographs corresponding to A-D, respectively, indicate MFs interacting with the moving plastid and stromule. Two thick MFs bound the plastid body on either side (arrowheads, E-H). GFP-hTalin-labeled MFs are false-colored red. DIC images are false-colored green. Bar: 5 μm.