Intestinal epithelium from the adult midgut of Drosophila melanogaster were immuno-stained for the cell periphery (integrin, red), nuclei (DAPI, blue) and stem cells (green). Nuclei are not seen in th...

This electron micrograph shows the plasma membrane of epithelial cells of the brush border of the cat intestine, obtained from a thin section parallel to the free surface. The ability to visualize ce...

This pair of confocal micrographs demonstrates how a disease-causing strain of E. coli bacteria brings about diarrhoea by breaking down the waterproof barriers between the cells. The bacteria are seen...