Figure 6.

Constitutive expression of APY1 or APY2 promote hook opening in etiolated seedlings. A, 2.5-day-old dark-grown APY1 OE and APY2 OE seedlings without sucrose in the growth medium show significant apical hook opening without the R light stimulus. Shown is a representative result that was observed in samples independently grown on three separate plates, each of which had an n value of 11. The R treatment in both (A) and (B) was for 24 h. Different letters above the bars indicate values that differ significantly from each other (P < 0.05, Student’s t test; error bars are se). B, Representative WT Ws, APY1 OE and APY2 OE seedlings. Bar 5 mm. C, Illustration of an A. thaliana apical hook measurement from the mid-line to the tip of the cotyledon.