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. 2016 Dec 6;7:1814. doi: 10.3389/fpls.2016.01814

FIGURE 7.

FIGURE 7

Effects of exogenous melatonin on activities of key enzymes in ascorbic acid – glutathione (AsA–GSH) cycle in chloroplasts under chilling stress. (A) ascorbate peroxidase (APX), (B) monodehydroascorbate reductase (MDHAR), (C) dehydroascobate reductase (DHAR), (D) glutathione reductase (GR). Control (28/18°C); Control + Melatonin (200 μM melatonin, 28/18°C); Chilling (15/8°C); Chilling + Melatonin (200 μM melatonin, 15/8°C). Data are means ± SD of three replicates.