Figure 6

Effects of exogenous DCPTA on the ultrastructure of the photosynthetic apparatus of the leaves of maize seedlings grown in nutrient solutions with or without 15% PEG-6000. The second leaves (numbered basipetally) were sampled for ultramicroscopic observations on day 7 after the drought treatment (15% PEG-60000). SL, stroma lamella; GL, grana lamellae; CW, cell wall; and P, plastoglobule. The scale bars for the photosynthetic apparatus represent 2000 nm. (A) Control, (B) 5 mg/L DCPTA, (C) 15 mg/L DCPTA, (D) 25 mg/L DCPTA, (E) PEG-6000, (F) PEG-6000+5 mg/L DCPTA, (G) PEG-6000+15 mg/L DCPTA, and (H) PEG-6000+25 mg/L DCPTA.