Definitions for "Aleurone Layer"
The outermost layer of endosperm in cereals. Developmentally important as a source of amylases during germination. Also contains high levels of minerals and polyphenol oxidase enzymes.
1/2k¯»1/4h, In seed, metabolically active cells of outer layer of the endosperm (in contrast to metabolically inactive cells of most of the endosperm) containing aleurone grains, several hydrolytic enzymes and reserves of phytin (releasing inorganic phosphate and inositol on digestion by phytase). During germination, aleurone cells secrete -amylase into the endosperm, initiating its digestion.
Algae Algae are single-celled to many-celled organisms that contain various photosynthetic pigments and belong to the Division Protista. They can be single-celled to clusters of cells called colonies to filaments of cells (cells hooked end to end). The algae that most people see is usually green in color because of the chlorophyll their cells contain.