Time-lapse fluorescent speckle images of mCherry-β-actin (red) and EGFP-shootin1 (green) coexpressed in XTC fibroblasts treated with 1 µM cytochalasin D. See the legend for Fig. 2 A. The white flash indicates the time of cytochalasin D application (0 min). Image intervals are 10 s; frames are shown at 7.5 frames per second.
