Figure 6.

Histochemical GUS Staining of P_SPR1:GUS:T_SPR1 Transgenic Plants.

(A) Root apical region.

(B) Root basal region.

(C) Flower.

(D) Four-day-old seedlings grown under continuous light.

(E) A cotyledon of a 6-d-old seedling grown in the dark.

(F) A cotyledon of a seedling grown for 5 d in the dark and then exposed to continuous light for 1 d.

(G) to (K) Seedlings grown in the dark for 3 d (G), 3.5 d (H), 4 d (I), 5 d (J), and 6 d (K).

Bars in (A) and (B) = 100 μm; bars in (C) and (D) = 1 mm; bars in (E) and (F) = 200 μm; bar in (G) to (K) = 5 mm.