Figure 7.

Histochemical localization of GUS activity in transgenic rice carrying OsYUCCA1-GUS (A, B, D, and G–J) or DR5-GUS (C, E, F, and K–N). Plants were stained for GUS activity for 2 h (E, F, K, L, and N), 24 h (A–C, G, I, and J), or 48 h (D, H, and M). A and E, Tip area of leaf blade. Right and left leaves in each segment were treated without or with 10 μm NPA. Bar = 2 mm. B and C, Longitudinal sections around the shoot apex region at the vegetative stage. Bar = 100 mm. D and F, Cross sections of stem. Bar = 1 mm. G and K, Root tip region. Bar = 0.2 mm. H and L, Developing roots at the elongation zone. Bar = 5 mm. I and M, Longitudinal sections at the floral shoot meristem. Bar = 0.1 mm. J and N, Developing flowers. Bar = 2 mm.