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The relationship between BRs-induced H2O2 and NO accumulation under cold stress conditions. Images were taken after 24 h of chemicals treatment using a fluorescence microscope (Scale bars = 75 μm) (a). Quantitative measurements of H2O2 level (b) and NO level (c) in young leaves. Bars represent mean and standard deviation of values obtained from three biological replicates. Significant differences (p < 0.05) are denoted by asterisks.
