Starch Granule Blocklet Structure

Text from Keeling (1997)


The corn starch granule is built inside the amyloplast compartment of plant cells. It is a truely unique structure. We know alot about this complex structure, but we do not know enough. It is composed of concentric rings of starch arranged from the alignment of multiple blocklets. Each blocklet is in turn composed of arrays of amylopectin molecules.