Figure 8.

DNA damage in tea plant root tips

After growth in nutrient solution supplemented with aluminium (Al) for 30 d, tea plants were transferred into nutrient solution lacking added Al for an additional 3 d. Root cell structures were imaged after withdrawal of Al for 0 (A), 1 (B), 2 (C), and 3 (D) d. Terminal deoxynucleotidyl transferase dUTP nick end labeling (TUNEL) staining due to DNA fragmentation and damage is indicated by the green staining, while Calcofluor‐white staining shown in red depicts the root cell walls. Bars = 20 µm.