A major component of the internal membrane system of eukaroytic cells (those with nuclei), the endoplasmic reticulum (or ER) is an enclosed network of membranous tubules, vesicles, and flattened cisternae (bags) extending throughout the cytoplasm of...

This may be ROUGH ENDOPLASMIC RETICULUM or SMOOTH ENDOPLASMIC RETICULUM. See also: cell;...

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The endoplasmic reticulum or ER is an organelle found in all eukaryotic cells that is an interconnected network of tubules, vesicles and cisternae. The lacey membranes of the endoplasmic reticulum were first seen by Keith R. Porter, Albert Claude, and...

Native and Artificial Reticuloplasmins Co-Accumulate in Distinct Domains of the Endoplasmic Reticulum and in Post-Endoplasmic Reticulum Compartments1 We compared the subcellular distribution of native and artificial reticuloplasmins in endosperm, callus, and leaf tissues of transgenic rice (Oryza sativa) to determine the distribution of...

Nodal Endoplasmic Reticulum, a Specialized Form of Endoplasmic Reticulum Found in Gravity-Sensing Root Tip Columella Cells1 The endoplasmic reticulum (ER) of columella root cap cells has been postulated to play a role in gravity sensing. We have re-examined the ultrastructure of columella cells...