Aleurone -

-amylase) that break down the starchy endosperm into food for the growing embryo.

: It serves as a protective layer against pathogens during seed development. 🧪 Cellular & Chemical Composition Aleurone | Ardent Mills Canada aleurone

: During germination, it synthesizes and secretes hydrolases (like -amylase) that break down the starchy endosperm into

: Its activity is triggered by gibberellic acid (GA) from the embryo and suppressed by abscisic acid (ABA) to maintain dormancy. aleurone

The is a specialized, living tissue that forms the outermost part of the endosperm in cereal grains. While often removed during the milling process as part of the "bran," it is actually the most nutrient-dense portion of the seed. 🌾 Biological Role & Function