Calcium oxalate needles shot out from idioblast (600x magnification)
An idioblast is an isolated plant cell that differs from neighboring tissues. They have various functions such as storage of reserves, excretory materials, pigments, and minerals. They could contain oil, latex, gum, resin, tannin, or pigments etc. Some can contain mineral crystals such as acrid tasting and poisonous calcium oxalate, carbonate, or silica.
Any of the tissue or tissue systems of plants can contain idioblasts.[1]
Idioblasts are divided into three main categories: excretory, tracheoid, and sclerenchymatous.
Idioblasts can contain biforine cells that form crystals. The chemicals are excreted by the plant and stored in liquid or crystalline form. In bundles they are known as druse and as crystals they can be of raphide [needle] form. When the end of an idioblast is broken the crystals or other substance is ejected by internal water pressure. Idioblasts of calcium oxalate may function as a deterrent to herbivores, as a means of sequestering or storing calcium, or as a means of stiffening tissue structure.[2]
^Sachs 1874. "Botany"
^Coté GG (July 2009). "Diversity and distribution of idioblasts producing calcium oxalate crystals in Dieffenbachia seguine (Araceae)". American Journal of Botany. 96 (7): 1245–54. doi:10.3732/ajb.0800276. PMID 21628273.
An idioblast is an isolated plant cell that differs from neighboring tissues. They have various functions such as storage of reserves, excretory materials...
SAM-Software Automatic Mouth as vocal tracks on "2 4 5 7 9 11" and on his Idioblast (album) in 1984. In addition to playing keyboards, electronic drums and...
cells within parenchyma tissues. An isolated sclereid cell is known as an idioblast. Sclereids are typically found in the epidermis, ground tissue, and vascular...
which often synthesize specialized products such as crystals, are termed idioblasts. Cross-section of a leaf Epidermal cells Spongy mesophyll cells The epidermis...
"singularity point"). Originally translated by US Renditions as "Differentiated Idioblast", it is more properly translated as "Singularity". In the ImaginAsian...
stored in organelles able to withstand the protein precipitation process. Idioblasts are isolated plant cells which differ from neighboring tissues and contain...
"Composition and ultrastructure of the suberized cell wall of isolated crystal idioblasts from Agave americana L. leaves". Planta. 155 (2): 166–75. Bibcode:1982Plant...
synanthous. Contents: A B C D E F G H I J K L M N O P Q R S T U V W X Y Z idioblast A cell, especially of a leaf, differing markedly from surrounding cells...
metals. Oxalic acid is produced in specialized parenchyma cells called Idioblasts. There it binds with excess calcium from plant tissue forming needle-like...
crystals are found in plant stems, roots, and leaves and produced in idioblasts. Vanilla plants exude calcium oxalates upon harvest of the orchid seed...
carpels are fused to a superior ovary with one (rarely two) basal ovule. Idioblasts are found in the tissues. The diaspores are seeds or fruits (utricles)...
Myrosinase is stored largely as myrosin grains in the vacuoles of particular idioblasts called myrosin cells, but have also been reported in protein bodies or...
Raphides are found in specialized plant cells or crystal chambers called idioblasts. Electron micrographs have shown that raphide needle crystals are normally...
encircling the fibrous cylinder, and does not have raphide-containing idioblasts in the foliar margin, unlike B. capitata (Sant'Anna-Santos et. al 2015)...
H. T. (1980). "Calcium Oxalate Raphide Crystals and Crystalliferous Idioblasts in the Carpels of Ornithogalum caudatum". Annals of Botany. 46 (5): 533–539...
encircling the fibrous cylinder, and does not have raphide-containing idioblasts in the foliar margin, unlike B. capitata (Sant'Anna-Santos et al. 2015)...
grains are randomly distributed. The tissue of the stem also contains idioblasts with calcium oxalate crystals and drusen. The stem also contains secretory...
their bodies for rigidity and so the mesophyll often has sclerenchymatous idioblasts. The widespread species Chrysobalanus icaco produces a plum-like fruit...
stipules fused with the petiole (Tetracentron) or absent (Trochodendron). Idioblasts present, large, branched, sclerenchymatous in Trochodendron and secretory...
isobilateral or centred; mesophyll tissue usually with sclerenchymatous idioblasts, rare secretory cavities. Brachy-paracytic stomata (laterocytic in Bellendena)...
non-tabular parenchyma cells covered by a thin layer of cuticle. Crystal idioblast (CI) containing cells are lacking in the palisade layer and protrude into...
tegmen (the inner layer of the testa) is collapsed. The seed coat has oily idioblasts; the endosperm is abundant and oily (ruminate in Cinnamosma). The embryo...
encircling the fibrous cylinder, and does not have raphide-containing idioblasts in the foliar margin, unlike B. capitata (Sant'Anna-Santos et. al 2015)...
species has rounded, flattened (truncated) bodies, covered with many idioblasts. Its flowers, which appear in autumn and winter, are unscented and yellow...
(0.24–0.31 in) and has about 60 divisions. It is covered in granular idioblasts. There are eight to ten greenish stigmas. They are 2 mm (0.079 in) long...
grey-green in colour, particularly on the margins. They are also spotted with idioblasts. The leaves do not form resting sheaths, but shrivel and are held close...
shows laterocytic stomata, and is characterized by striae and perforated idioblasts. Leaves of Mesodescolea are locally abundant in the deposits of the Anfiteatro...
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