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A plant cell that differs noticeably in form from neighboring cells.

id′i·o·blas′tic adj.


(Biology) a plant cell that differs from those around it in the same tissue
ˌidioˈblastic adj


(ˈɪd i əˌblæst)

a plant cell that differs greatly from the surrounding cells or tissue.
id`i•o•blas′tic, adj.
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References in periodicals archive ?
The authors conclude that in dry environments, the canopy contains numerous layers of thick cells, whereas in humid environments, the canopy presents fewer layers of cells, and the exodermis shows higher numbers of idioblasts in plants treated with at least 50% urea (Figure 2B).
1 mm long, darkened color passing into segment bases, bases basiscopically excavate, acroscopically truncate, margins shallowly dentate, apex acuminate; veins free, dilated distally, ending in marginal teeth or arcuate toward the nearest distal tooth, prominulous, markedly so adaxially, lacking venuloid idioblasts between veins; terminal blade segment broadly trullate, 80-100 x 65-80 mm; sori discontinuous, 2-16 per segment, widely depressed ovate, 2-3 x 2-3 ram, false indusia stramineous, transparent when young, becoming brittle and black with age, with small reddish-brown hairs along receptacle lines, margins erose; spores trilete, stramineous-gold, 23-44 [micro]m.
Idioblasts with raphides in the storage parenchyma and chlorenchyma.
Trochodendron and Tetracentron contain stellate idioblasts.
Mesophyl presented very abundant crystalliferous idioblasts, containing calcium-oxalate microcrystals.