Figure captions
Figure. 1 The dissipation dynamic curves of CLO, DFN and DFZ after application of exogenous SA in nutrient solution. The dissipation dynamic curves of CLO, DFN and DFZ in nutrient solution without SA supplementation were shown in fig.1(A); the dissipation dynamic curves of CLO in nutrient solution with SA supplementation were shown in fig.1(B); the dissipation dynamic curves of DFN in nutrient solution with SA supplementation were shown in fig.1(C); the dissipation dynamic curves of DFZ in nutrient solution with SA supplementation were shown in fig.1(D).
Figure. 2 The dynamic distribution and accumulation of CLO, DFN and DFZ in roots, stems and leaves of cucumber plants. The dynamic distribution and accumulation of CLO, DFN and DFZ in roots, stems and leaves of cucumber plants without SA supplementation were shown in fig.2(A); the dynamic distribution and accumulation of CLO in roots, stems and leaves of cucumber plants with SA supplementation were shown in fig.2(B); the dynamic distribution and accumulation of DFN in roots, stems and leaves of cucumber plants with SA supplementation were shown in fig.2(C); the dynamic distribution and accumulation of DFZ in roots, stems and leaves of cucumber plants with SA supplementation were shown in fig.2(D).
Figure. 3 The effects of exogenous SA on the mean concentrations of pesticides in roots, stems and leaves of cucumber plants 28-days of exposure. The effects of exogenous SA on the mean concentrations of CLO in roots, stems and leaves of cucumber plants 28-days of exposure were shown in fig.3(A); the effects of exogenous SA on the mean concentrations of DFN in roots, stems and leaves of cucumber plants 28-days of exposure were shown in fig.3(B); the effects of exogenous SA on the mean concentrations of DFZ in roots, stems and leaves of cucumber plants 28-days of exposure were shown in fig.3(C).
Figure. 4 Effects of exogenous SA on fresh biomass (A), chlorophyll content (B), H2O2 content (C), proline content (D), SOD activity (E), APX activity (F), GST activity (G)and MDA content (H)of cucumber plants after roots exposure to CLO (10mg L-1), DFN (20mg L-1) and DFZ (10mg L-1), respectively. Asterisks (*) indicate significant differences between the control groups and the treatment groups without supplementing SA (p< 0.05).