This book explores the intricate world of plant signaling by unraveling the synergistic roles of salicylic acid and nitric oxide in plant adaptation. This captivating exploration illuminates the pivotal roles of salicylic acid (SA) and nitric oxide (NO) as master regulators of plant responses to changing environmental dynamics. SA, a phenolic maestro, wields its mastery in steering metabolic pathways, stimulating plants’ tolerance against abiotic stresses. Meanwhile, the enigmatic nitrogen monoxide (NO) emerges as a redox regulator, modulating growth and physiology amid high temperature...