Amyloplasts are a type of plastid, double-enveloped organelles in plant cells that are involved in various biological pathways. Amyloplasts are specifically a type of leucoplast, a subcategory for colorless, non-pigment-containing plastids.[1][2] Amyloplasts are found in roots and storage tissues, and they store and synthesize starch for the plant through the polymerization of glucose.[1] Starch synthesis relies on the transportation of carbon from the cytosol, the mechanism by which is currently under debate.[2][3]
Starch synthesis and storage also takes place in chloroplasts, a type of pigmented plastid involved in photosynthesis.[1] Amyloplasts and chloroplasts are closely related, and amyloplasts can turn into chloroplasts; this is for instance observed when potato tubers are exposed to light and turn green.[4]
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