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EUGENE M. MCCARTHY, PHD Search the dictionary >>

Leucoplasts (also leukoplasts) are colorless plastids found in endosperm, tubers, cotyledons, roots and other non-photosynthetic tissues of plants.

They serve various functions, for example storage of starch, lipids, or proteins. Plastids of these three types are respectively known as amyloplasts, elaioplasts, and proteinoplasts. A leucoplast may also perform biosynthetic functions such as the synthesis of fatty acids, amino acids, and various other compounds.

Although they vary in shape, a leucoplast is usually much smaller than a chloroplast.

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Potato leucoplasts.
Image: Mnolf

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