Developmental rate of amyloplasts in central starchy endosperm cells was quicker than that in sub-aleurone cells.

Objective】 The objective of this research was to clarify structural characteristics of aleurone cells, sub-aleurone cells and central starchy endosperm cells.

The nutrient transported from dorsal vascular bundles first unloaded into apoplast via nucellar projection, then was absorbed by aleurone layer cells;