Phytohormones or plant hormones are the organic substances formed in minute amounts by plants that have a key function in growth and developmental responses to environmental stimuli in plants.
They are not secreted by endocrine glands as in the case of animal hormones but are synthesized in several tissues. They function as signal molecules inducing cell division, elongation of cells, differentiation of cells, flowering, fruiting, and stress response.
Types of phytohormones
There are various types of phytohormones in plants including auxins, gibberellins, cytokinins, ethylene, abscisic acid, brassinosteroids,…
