Figure 3.

Ultrastructural Analysis of Ubisch Bodies and Exine in Wild-Type and GA-Related Mutants by TEM.

(A) to (D) The cytoplasm of tapetal cells in the wild type (A), gamyb-2 (B), oscps1-1 (C), and gid2-5 (D). N, nucleus; P, plastid; M, mitochondria; ER, endoplasmic reticulum; G, Golgi body; UB, Ubisch body. Bars = 1 μm.

(E) to (H) The plasma membrane of tapetal cells in the wild type (E), gamyb-2 (F), oscps1-1 (G), and gid2-5 (H). Bars = 500 nm.

(I) to (L) The cytoplasm of microspores in the wild type (I), gamyb-2 (J), oscps1-1 (K), and gid2-5 (L). MS, microspore; N, nucleus; Ex, exine. Bars = 2 μm.

(M) to (P) Microspore coat of the wild type (M), gamyb-2 (N), oscps1-1 (O), and gid2-5 (P). Ba, bacula; Te, tectum; Fl, foot layer. Bars = 250 nm.