Figure 1.

A schematic summary of the physiological responses of melatonin employed in salinity stress tolerance (based on available research findings). The impact of salinity in several physiological reactions such as reactive oxygen species (ROS), abscisic acid (ABA), sodium and chloride ions, and stomatal closure. Additionally, melatonin promotes plant tolerance to salinity stress by enhancing several pathways such as membrane integrity, chlorophyll, photosynthesis, plant growth, and potassium and calcium ions.