Figure 1.—

bam1 and bam2 enhance meristem enlargement by clv1 and function synergistically with clv1 resulting in novel phenotypes. Scanning electron micrographs of Ler (A), clv1-11 (B), clv1-11 bam2-3 (C), clv1-11 bam1-3 (D), clv1-7 (E), clv1-7 bam2-3 (F), clv1-7 bam1-3 (G and H), clv1-11 bam1-1 bam2-1 (I and J), clv1-7 bam1-1 bam2-1 (K–N). Older flowers were removed for clarity. H, L, and N correspond to the boxed regions in G, K, and M, respectively. Differentiated cells surrounded by undifferentiated meristem cells are indicated with an arrow (H and L). Lack of flower primordia is indicated by an arrow (N). A, B, E, and F are shown at the same magnification. Bars: 50 μm (A, B, E, F, H, and L); 100 μm (C, D, and N); 250 μm (J); and 500 μm (G, I, K, and M).