Fig. 7. Organization of actin filaments in wild-type (Col), dis2 and pir-3 early stage 5 trichomes. Trichomes belonging to this stage were identified by a pointed tip morphology, the absence of papillae, a cell height of at least 40 µm, and a branch length between 30 and 75 µm. Each image is a projection of planes that correspond to the core branch cytoplasm. (A) Wild-type. (B) dis2-1. (C,D) pir-3. Scale bars: 10 µm.