leucoplast


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leucoplast:

see amyloplastamyloplast
, 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.
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leucoplast

[′lü·kə‚plast]
(botany)
A nonpigmented plastid; capable of developing into a chromoplast.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
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Further, the samples of fresh material were stained with Lugol's iodine in order to detect starch grains in leucoplasts, with Sudan III (a saturated alcoholic solution of Sudan III) to detect lipophilic substances in the cuticle and lenticels, and with Fe[Cl.sub.3] to detect tannin substances.
The relationship between the morphology and structure and the quality of fruits of two pear cultivars (Pyrus communis L.) during their development and maturation
Leucoplasts are nonpigmented plastids but contain enzymes responsible for the synthesis of starch.
Chapter 6: The inside story: molecules to cells
A statolith is an object in the plant cell now thought to be an amyloplast, which belongs to a class of colorless plastids called leucoplasts. When the plant is placed in the horizontal position, statoliths fall to the bottom of the cell, which causes changes in IAA gradients resulting in differential growth.
Chapter 10 plant growth regulators
leucoplasts: Membrane-bound organelles specialized for starch storage.
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