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. 2021 Apr 1;12:593717. doi: 10.3389/fpls.2021.593717

FIGURE 12.

FIGURE 12

Effect of melatonin with/without salt stress on H2O2 content in green mustard seedlings. DAB staining was used to visualize the accumulation of H2O2 in leaves on day 4 (4DAT; A-1) and day 8 (8DAT; B-1) of treatment. The H2O2 contents were calculated from data for 4 (4DAT; A-2) and 8 (8DAT; B-2) days. Treatment: control + water, control + 1 μM melatonin, 150 mM salt pre-treatment + water, 150 mM salt pre-treatment + 1 μM melatonin. Values represent the means ± SE (n = 3). Letters represent significant differences at p < 0.05 in accordance with Duncan’s multiple range tests.