Figure 5.

Effect of blue light on fusicoccin (FC)‐induced stomatal opening.

(a) Stomatal opening in response to FC in the epidermis of wild‐type (Col) leaves. Epidermal peels from dark‐adapted plants were incubated with FC at the indicated concentrations for 3 h in darkness. Data represent the means ± SD of three independent experiments. In each experiment, 45 stomata were measured.

(b) Effect of blue light on FC‐induced stomatal opening. Epidermal peels were incubated with FC at 10 µm with or without mixed light (R + B: red light at 50 µmol m⁻² sec⁻¹ and blue light at 10 µmol m⁻² sec⁻¹) for 3 h. Differences were evaluated using Student’s t test (*P < 0.05, **P < 0.01).