Fig. 7. Avoidance response of chloroplasts induced in partially irradiated Spinacia oleracea mesophyll cells over time: (A) 28 min, (B) 45 min, (C) 119 min and (D) 128 min. Partial irradiation of Spinacia mesophyll cells with strong blue light induced the localized avoidance response of chloroplasts, together with the formation of cytoplasmic strands (each pair of arrows) that moved freely in the irradiated cells. The lower half of the cells was irradiated. Scale bar: 10 µm.