Fifty years ago, a group at the US National Bureau of Standards published the first protocol for embedding preserved tissue with plastic, and showed that such methacrylate-embedded specimens were ...

This is a high-resolution SEM micrograph from FIB-SEM manual imaging showing Arabidopsis thaliana leaf mesophyll cells with chloroplasts, nucleus, and internal membranous endoplasmic reticulum ...

Calcium (Ca 2+) drives many cellular functions, though the way it controls quality of proteins in the endoplasmic reticulum (ER), a cellular organelle that synthesizes and transports proteins, has not ...

Four cells that lack the protein PERK observed under a fluorescence microscope. The endoplasmic reticulum (in red) is the protein folding factory of the cell, located around the nucleus (in blue) that ...