Figure 2.

Fluence rate and wavelength dependence of pulsed light-induced phototropism in Arabidopsis (adapted from (Konjevic et al., 1989)

(A) Phototropism induced by a single pulse of blue light (λ_max = 450 nm, 10 nm half-band) at a “low” fluence rate (0.1 µmol m^-2 s^-1).

(B) Phototropism induced by a single pulse of blue light (λ_max = 450 nm, 10 nm half-band) at a “high” fluence rate (0.7 µmol m^-2 s^-1).

(C) Phototropism induced by a single pulse of blue/green light (λ_max = 490 nm, 10 nm half-band; at a fluence rate of 0.9 µmol m^-2 s^-1).

(D) Phototropism induced by a single pulse of green light (λ_max = 510 nm, 10 nm half-band; at a fluence rate of 0.4 µmol m^-2 s^-1).