Orchid tuber, light micrograph

Orchid tuber, light micrograph

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Credit: DR KEITH WHEELER/SCIENCE PHOTO LIBRARY

Caption: Orchid tuber. Polarised light micrograph of a transverse section through the root tuber of an orchid (Phaius grandifolius) showing starch grains (blue-red and yellow-green) stored inside plastid cells called leucoplasts. Leucoplasts used to store starch are usually called amyloplasts. The outer wall of the amyloplast can be seen as a black outer membrane. Magnification: x46 when printed 10 centimetres wide.

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Keywords: ;eucoplast, amyloplast, amyloplasts, biological, biology, botanical, botany, cell, cells, flora, food, grain, grains, leucoplasts, light micrograph, light microscope, lm, membrane, nature, nutrition, orchid, phaius grandifolius, plant, plastid, plastids, polarised light, root, section, sectioned, starch, storage, store, stored, supply, transverse, tuber

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