Figure 3

The micro structures of SAMs in xcm9 . (A) and (B), SAM sections of mature embryos in WT (A) and xcm9 (B). Bar = 10 μm. (C) and (D), SAM sections of 8-day-old seedlings in WT (C) and xcm9 (D). Bar = 50 μm. (E) and (F), SAM sections of 28-day-old inflorecence shoots in WT (E) and xcm9 (F). Bar = 10 μm. (G) to (I), Micro structures of inflorescence shoots of WT (G) and xcm9 (H), (I) by scanning electron microscopy (SEM). Bar = 50 μm. The floral SAM the in primary shoot of xcm9 (H) was smaller than that of WT (G). The floral SAM in lateral shoot of xcm9 (I) shows bifurcation. Arrowhead indicates the two SAMs in one floral shoot. (J) and (K), The ranges of cell areas of 1st layer cells and all cells in SAMs of mature embryo (J) and 8-day-old plants (K).