What is the main function of abscisic acid in plants?
What is the main function of abscisic acid in plants? Abscisic acid (ABA) is an important phytohormone regulating plant growth, development, and stress responses. How does abscisic acid work in plants? Plants have openings on the bottom of their leaves known as stomata. Stomata take in carbon dioxide and regulate water content. Abscisic acid functions by closing the stomata during difficult times in order to limit growth and to prevent seeds from germinating during unfavorable conditions. Does abscisic acid inhibit plant growth? The stress hormone abscisic acid (ABA) induces expression of defence genes in many organs, modulates ion homeostasis and...