Figure 2.
Antioxidant levels in the EFP are decreased after leaf damage. (A) Ascorbate and (B) glutathione concentrations in phloem latex. White sections of the columns represent the reduced fractions of ascorbate (AsA) and glutathione (GSH). Oxidized ascorbate (DHA) and glutathione (GSSG) are shown in gray. Numbers are the AsA/DHA and GSH/GSSG ratios. Columns represent means (±SD, n = 7–9). Asterisks indicate significant differences from control (C) samples (Student's t-test, *p < 0.05, **p < 0.01, ***p < 0.005).