Figure 4.

Microscopic Analysis of Root Phenotypes of Anti-AtRanBP1c Transgenic Plants.

(A) At top, root of wild-type (WT) Arabidopsis showing normal even distribution of root hairs throughout the region extending 20 to 500 μm behind the meristematic zone. At bottom, two representative roots from transgenic plants expressing anti-AtRanBP1c, each showing only patchy distribution of root hairs, with bare spots visible either near the distal end of the root hair zone (left root) or all along most of the root length shown (right root).

(B) Roots of wild-type (right) and anti-AtRanBP1c plants (left) showing the typical pattern of multiple lateral roots growing out from the primary root of the wild-type plant and only one lateral root (LR) growing out from the transformant, with additional lateral root buds forming in a normal pattern but arrested in their growth (arrows).

Bars = 500 μm.