amyloplast

All Sources -
Updated Media sources (1) About encyclopedia.com content Print Topic Share Topic
views updated

amyloplast (ăm´əlōplăst´), also called leucoplast, a nonpigmented organelle, or plastid, occurring in the cytoplasm of plant cells. Amyloplasts transform glucose, a simple sugar, into starch through the process of polymerization, and store starch grains within their stretched membranes. Especially large numbers occur in subterranean storage tissues of some plants, such as the common potato.

views updated

amyloplast A plastid that synthesizes and stores starch, to the exclusion of other activities.

views updated

amyloplast An organelle in plants that stores starch. Amyloplasts are often found in nonphotosynthetic tissue, such as roots and storage tubers.