Figure 8.

ago1 Is Hyperresponsive to Light.

(A) Hypocotyl length of the different ago1 mutants grown in various light conditions. Hypocotyl length was measured on wild-type and mutant siblings from the different alleles grown in vitro under different light conditions for 8 d. cW, constant white light (150 μE·m⁻²·s⁻¹); cR, constant red light (9 μE·m⁻²·s⁻¹); cFR, constant far-red light (0.25 μE·m⁻²·s⁻¹); cB, constant blue light (3.7 μE·m⁻²·s⁻¹). Error bars indicate sd.

(B) phyA is epistatic to ago1 in far-red light. Hypocotyl length of Col-0, ago1-3, phyA, phyA ago1-3, phyA ago1-33, and phyA ago1-35, 8 d after germination either in the dark or in cFR. Error bars indicate sd.