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.
1996; Lariguet and Fankhauser, 2004), where phytochrome is found to promote the conversion of amyloplasts to other forms of plastids in the endodermis, causing cessation of hypocotyl gravitropism (Kim et al.
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).
Below the epidermis there are four to five layers of sclerenchyma followed by parenchyma with some amyloplasts.
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).