Figure 1.

Spatial patterns of OsMCA1 transcription as revealed by GUS staining. Transgenic rice plants harboring OsMCA1p::GUS were stained in X-Gluc solution and cleared in methanol. (a) Half of a seed. An arrow indicates the seed embryo. (b-g) Whole seedlings grown for 7, 7, 7, 8, 13 and 11 days, respectively. Shoot apices and proximal regions are indicated with arrows and arrowheads, respectively. (h-j) Cross sections of leaves from plants grown for 14 days. Representative staining images for three transgenic plants are shown. (k-m) Roots from plants grown for 7, 14 and 14 days, respectively. Arrows indicate lateral root primordial. Sections are 50 or 200 μm thick.