Constitutive expression of GFP (Green Fluorescent protein) in MTLn3 cells, a metastatic rat breast carcinoma line. This time lapse sequence of a single optical section near the substrate shows the ce...

Primary rat hepatocytes in culture fixed and stained for beta-tubulin. The microtubules form a network throughout the cytoplasm. In this image they are seen originating from a brighter and denser re...

The f-actin staining in the lamella of a cultured fibroblast shows common features of adherent cells on a flat substrate. The dominant f-actin organization is in the form of stress fibers, linear bun...

Primary rat hepatocytes in culture fixed and stained for beta-tubulin. The microtubules form a network throughout the cytoplasm. In this image they are seen originating from a brighter and denser re...

Primary rat hepatocytes in culture fixed and stained for beta-tubulin. The microtubules form a network throughout the cytoplasm. In this image they are seen originating from a brighter and denser re...

Primary rat hepatocytes in culture fixed and stained for beta-tubulin. The microtubules form a network throughout the cytoplasm. In this image they are seen originating from a brighter and denser re...

Primary rat hepatocytes in culture fixed and stained for beta-tubulin. The microtubules form a network throughout the cytoplasm. In this image they are seen originating from a brighter and denser re...

This is a region of a (semithin) longitudinal section of onion root taken from the meristematic zone; this is the undifferentiated region of plant tissue from which new cells are formed. Therefore, it...

Four cell stage zebrafish embryo, stained with 100 micromolar Bodipy 505/515. In the upper portion of the image, the yolk cell contains large spherical yolk platelets. The blastomeres undergoing merob...

Shown are 0.5 micrometer thick confocal image of midplane sections of synchronized 3T3 fibroblasts pulsed for 2 min with CldU and labeled with FITC (green) followed by a variable chase time, and a sec...