amyloplast


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Related to amyloplast: Elaioplast

am·y·lo·plast

(am'i-lō-plast),
A granule in the protoplasm of a plant cell that is the center of a starch-forming process and starch storage.
Synonym(s): amylogenic body
[amylo- + G. plastos, formed]

amyloplast

a type of cell inclusion found in many plant tissues, particularly storage organs such as the potato tuber. Amyloplasts contain starch enclosed in a UNIT MEMBRANE, the whole structure being a type of LEUCOPLAST. Besides serving as a starch store, amyloplasts are thought by some scientists to function also as a gravity-seeking device, helping the roots to push through the soil in the correct direction (see GEOTROPISM).

amyloplast

a starch-forming leuko-plastid in a plant.
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References in periodicals archive ?
In differentiated cells, plastids can be involved in anabolism (chloroplasts) or in storing reserves in amyloplasts and elaioplasts (Wheatley, 1977).
The rice coleoptile is highly sensitive to gravity, and the abundance of amyloplasts can be controlled by submerged growth.
The comparison of B73 and Mo17 inbred lines indicates that the physiological basis for increased tolerance to high temperature is associated with ability to protect endosperm cell ultrastructure and ultimately endosperm cell division and amyloplast initiation against the detrimental effects of high temperature during early kernel development.
The vegetative cell cytoplasm is very dense, filled with numerous small vesicles, mitochondria, lipidic globules, amyloplasts and ERr with extended cisternae.
If polarized light microscopy is included, it can be used as a tool to identify plant material on the basis of the Maltese cross evident in amyloplasts when viewed with crossed polars and the birefringence exhibited by cellulosic fibers (for complete instructions for a lab on polarized light microscopy, see McMahon, 2004).
Proteomic characterization of wheat amyloplasts using identification of proteins by tandem mass spectrometry.
Physiological stress expressed by salinity during this period reduces the storage capacity of cereal kernels by decreasing the number of endosperm cells and/or the number of amyloplasts initiated (Jones et al.
In higher plants, much evidence suggests that amyloplasts function as statoliths (Kiss et al.
In addition to working as photoassimilate repositories, soybean cotyledons become green and expand, suggesting that their amyloplasts are transformed into chloroplasts.
These VSPs are localized primarily in vacuoles, with smaller amounts associated with amyloplasts (Avice et al.
The absence of amyloplasts was similar to what was observed by Elmore and Bayer (1992) for perennial ryegrass seedlings treated with nitralin (4-methylsulphonyl-2,6dinitro-N, N-dipropy-laniline) and butralin [4-(1,1dimethylethyl)-N-(1-methylpropyl) -2,6-dinitrobenzenaminel.