Actin is required to maintain the microtubule focus near the cell apex. (A) A cell expressing Myo8A-GFP (green) and mCherry-tubulin (magenta). (B) The same line as in A imaged in the presence of 25 µM latrunculin B. Images are single focal planes acquired every 2 s. Bars, 5 µm. See also Video 7.