Figure 3.

Effects of growth regulators on elongation of hypocotyls and epinasty of leaves. After seedlings were grown under continuous white light for 1 (a and c–h) or 2 (b) weeks on agar plates, length of hypocotyls of wild type (black bars and circles in a and b, respectively) and cdg1-D (white bars and circles in a and b, respectively) was measured. Wild-type (c–e) and cdg1-D (f–h) plants were grown in the absence (c and f) or presence (d and g) of 1 μm GA or BL (e and h). Wild-type (left) and cdg1-D (right) plants were grown in the absence (i) or presence (j and k) of 2 μm brassinazole for 4 d in the dark (i and j) or for 10 d under continuous white light (k). Bars, 1 mm.