Fig. 8. Chloroplast photorelocation movements. (A) Measurement of light-induced changes as red light transmittance (ΔT = Tt – T0) in Arabidopsis thaliana leaf under illumination with the blue light of 3, 20, and 50 μmol(photons) m–2 s–1 (labeled as Light 1, 2, and 3), given for 60, 40, and 40 min. (B) Schematic drawing of chloroplast positions under different illumination conditions: in darkness (at the bottom of the cells), during the accumulation response under low light (below the cell surface, i.e., periclinal wall, and at the bottom of the cells), and avoidance response under medium and high light (on the sidewall, i.e., anticlinal wall). Modified from Suetsugu et al. (2016) and Wada (2016).
