Additional file 2 of Exogenous proline mitigates toxic effects of cadmium via the decrease of cadmium accumulation and reestablishment of redox homeostasis in Brassica juncea

Additional file 2: Fig. S2. Effects of exogenous proline on contents of PCs in leaves (A) and roots (B) of Brassica juncea seedlings under normal growth (Control), 80 µM Cd treatment (Cd), 60 mg/L proline treatment (Pro), and 80 µM Cd + 60 mg/L proline treatment (Cd + Pro). All the analyses were performed with three replicates. Error bars represent the standard deviations (SD). The different letters in the group indicate significantly different values between treatments (P < 0.05). PCs, phytochelatins.