Related Experiment Video
Updated: May 3, 2026

Preparation of Intact Tissue for Microscopic Analysis of the Endosperm Cell Layer in Developing and Mature Arabidopsis Seeds
Published on: May 16, 2025
Anatomical and ultrastructural changes in aleurone and myrosin cells of Sinapis alba during germination
1Department of Botany, The Hebrew University of Jerusalem, Jerusalem, Israel.
Abstract:
The cells of the embryo of Sinapis alba L. include either aleurone or myrosin grains and all cells contain oil bodies. Aleurone grains and oil bodies are degraded during germination. The myrosin grains of each myrosin cell, on the other hand, gradually turn into one big vacuole containing the myrosin. Probably very little, if any, new myrosin is formed in the cotyledons and hypocotyl of the seedling after germination. No difference was found between aleurone and myrosin cells in the development of organelles. The cells of provascular bundles of the mature embryo contain different amounts of aleurone grains in different stages of development, and their organelles are more developed than those of all other cells.
Related Concept Videos
Seed Structure and Early Development of the Sporophyte
The Angiosperm Life Cycle

