Also found in: Dictionary, Encyclopedia, Wikipedia.
Related to amyloplast: Elaioplast
A granule in the protoplasm of a plant cell that is the center of a starch-forming process and starch storage.
Synonym(s): amylogenic body
[amylo- + G. plastos, formed]
amyloplasta type of cell inclusion found in many plant tissues, particularly storage organs such as the potato tuber. Amyloplasts contain starch enclosed in a UNIT MEMBRANE, the whole structure being a type of LEUCOPLAST. Besides serving as a starch store, amyloplasts are thought by some scientists to function also as a gravity-seeking device, helping the roots to push through the soil in the correct direction (see GEOTROPISM).
a starch-forming leuko-plastid in a plant.