Lilium longiflorum (Easter Lily) pollen. This is a thin optical section through the center of the desiccated stage of the mature pollen showing autofluorescence or harmonic generation of intrinsic st...

Lilium longiflorum (Easter Lily) pollen. This is a thin optical section through the center of the desiccated stage of the mature pollen showing autofluorescence or harmonic generation of intrinsic st...

Lilium longiflorum (Easter Lily) pollen. This is a thin optical section through the center of the desiccated stage of the mature pollen showing autofluorescence or harmonic generation of intrinsic st...

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...

Overexpression of and arp3-GFP fusion protein in MTLn3 cells, a metastatic rat breast carcinoma line. This Z series sequence of cells in culture shows the protein throughout the cytoplasm and exclude...

Phase contrast microscopy of living bone marrow derived macrophages. These cells are highly motile and the snapshot catches lamella and ruffles where the cells are protruding and phase dense organell...

Phase contrast microscopy of living bone marrow derived macrophages. These cells are highly motile and the snapshot catches lamella and ruffles where the cells are protruding and phase dense organell...

Phase contrast microscopy of living bone marrow derived macrophages. These cells are highly motile and the snapshot catches lamella and ruffles where the cells are protruding and phase dense organell...

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...

Tripolar mitosis in a liver cancer cell line. Normally, dividing cells form a single metaphase plate of paired chromosomes which are pulled apart by opposing microtubule spindles. The Z series, obtai...