Fig. 3From: Melatonin alleviates heat-induced damage of tomato seedlings by balancing redox homeostasis and modulating polyamine and nitric oxide biosynthesisEffects of Melatonin (100 μM) on (A) proline content and (B) relative transcript expression of P5CS and (C) relative water content (REL) in leaves of tomato seedlings in presence or absence of high temperature (42 °C) stress. Data represent as a mean of standard deviation (SD) of three replications. Different letters indicate significant differences according to Tukey’s HSD test at P ≤ 0.05Back to article page