amyloplast

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Related to Amyloplasts: chromoplasts

amyloplast

(ăm`əlōplăst'), also called leucoplast, a nonpigmented organelle, or plastid, occurring in the cytoplasm of plant cells. Amyloplasts transform glucose, a simple sugar, into starch through the process of polymerization, and store starch grains within their stretched membranes. Especially large numbers occur in subterranean storage tissues of some plants, such as the common potato.

amyloplast

[′am·ə·lō‚plast]
(botany)
A colorless cell plastid packed with starch grains and occurring in cells of plant storage tissue.
References in periodicals archive ?
The vegetative cell cytoplasm is very dense, filled with numerous small vesicles, mitochondria, lipidic globules, amyloplasts and ERr with extended cisternae.
Amyloplasts are evident after staining with Lugol's.
In differentiated cells, plastids can be involved in anabolism (chloroplasts) or in storing reserves in amyloplasts and elaioplasts (Wheatley, 1977).
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.
In addition, at 4[degrees]C amyloplasts sedimented normally in the gps mutants, indicating that the GPS loci affect an aspect of the gravity signal perception/transduction pathway that occurs after amyloplast sedimentation (perception).
In plants, sedimentable amyloplasts have been conceived of, since the turn of the century, as potential statoliths (Haberlandt, 1900; Nemec, 1900).
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.