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.
While gravity causes the sedimentation of starch-laden amyloplasts
during perception, background vibration may be partially counteracting this stimulus.
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.