Fig. 3.

Restoration of plastid differentiation in ex1/ex2 seedlings after siliques were placed in the dark. (A and B) Siliques of ex1/ex2 and WT plants grown under continuous light were covered with aluminum foil from 10 DAA to the end of seed maturation. (C and D) In contrast to ex1/ex2 control plants kept under continuous light, 4-day-old ex1/ex2 seedlings derived from seeds taken from darkened siliques contained normal chloroplasts with Chl content (A) and size distributions (B) similar to those of WT chloroplasts. In (A) and (C), cotyledons (Left Panels) and chloroplasts in cotyledon mesophyll cells (Right Panels) are shown. (Scale bar: 5 μm.)