ROOTS
Secondary Cortex

The image at left shows a cross section of root cortex. The multicolored bodies in this image are amyloplasts--starch storing plastids. Each amyloplast contains one to many starch grains.

Amyloplasts are colorless. Polarized light in the image at left gives the amyloplasts a beautiful color variation and illuminates their cross-like markings.

 

 

Root Cortex XS (Polarized Light)

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