Rough endoplasmic reticulum

Photographer

Newcomb, Eldon

Summary

• Transmission electron micrograph
• The transmission electron micrographs included in this collection were all the work of Dr. Eldon Newcomb. Dr. Newcomb was a pioneer in the fixing and preparation of plant tissue for viewing with the transmission electron microscope. Dr. Newcomb generously allowed me to scan a sampling of his glass plates on a flat bed scanner. I do not have documentation about the source of the tissue scanned. However, each of these examples illustrates good generic views of plant cellular ultrastructure.
• The endoplasmic reticulum is a membrane system that pervades the cytoplasm of eukaryotic cells. The roughness of these views is due to ribososmes associated withthe ER. Protein is produced at the ribosomes, and this is a view of an area of a cell involved in protein synthesis.