Fig. 2. Comparison of actin cytoskeletal organization in the wild type and in the wal1 mutant. Representative fluorescent images are shown of hyphae stained with rhodamine-phalloidin of the wild type (A,B) and the wal1 mutant (C,D). Small brackets mark the concentration of cortical actin patches in the hyphal tip of the wild type (A,B). Larger brackets point to the subapical region, where patches accumulate in wal1 hyphae (C,D). Scale bar, 10 µm.