Fig. 2. The dek1-D mutant transforms leaf epidermal cells to bulliform cells. (A) dek1-D mutant plant. (B) Ear from a dek1-D mutant, showing a barren region in the middle of the inflorescence. (C,D) Cross sections of (C) wild-type leaf with bulliform cells (arrow) and (D) dek1-D mutant leaf. (E) SEM of a wild-type leaf showing a bulliform row (arrows). (F) SEM of dek1-D. (H) High magnification of bulliform cells on a wild-type leaf. (H) High magnification of dek1-D epidermal cells showing characteristics of bulliform cells. (I,J) High magnification of epidermal ground cells and a stoma in wild type (I) and dek1-D (J). Scale bars: 100 µm (C-F); 10 µm (G-J).