Table 1.

Positioning of Amyloplasts in the Endodermal Cells

Position	Wild Type	sgr2-1	zig-1
Top	1 (0.5%)	65 (32.2%)	44 (20.1%)
Middle	14 (7.3%)	15 (7.4%)	80 (36.5%)
Bottom	176 (92.1%)	122 (60.4%)	95 (43.4%)
Total	191	202	219

Amyloplasts that were observed in the longitudinal sections as in Figure 1 were counted. Twenty endodermal cells of each plant were used to count amyloplasts. Amyloplasts that touched the top or bottom side of the wall and those that sat closely together were counted as top or bottom. The others were counted as middle.