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idioblast

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idioblast

[′īd·ē·ō‚blast]
(botany)
A plant cell that differs markedly in shape or function from neighboring cells within the same tissue.
(geology)
A mineral constituent of a metamorphic rock formed by recrystallization which is bounded by its own crystal faces.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
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References in periodicals archive
Idioblasts with raphides in the storage parenchyma and chlorenchyma.
Mesophyl presented very abundant crystalliferous idioblasts, containing calcium-oxalate microcrystals.
Tannin idioblasts may be found scattered throughout the axial parenchyma and the rays.
The following types of secretory structures have already been recorded in the family: trichomes, idioblasts, laticifers, coletters, nectaries, secretory cells with resinous contents, tannin cells, and mucilage lacunae (Solereder 1908; Metcalfe and Chalk 1950; Thomas 1991).
goyazana from other species of the genus based on the stomata; mesophyll; sclerenchyma sheaths shared by mid-vein vascular bundles; the occurrence of idioblasts and raphides; and the presence of starch and tannin in the leaf blade.
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