Gastrulation in C. elegans
Movies of gastrulation of the endodermal precursor cells from: Mechanisms of cell positioning during C. elegans gastrulation Jen-Yi Lee and Bob Goldstein Development (2003) 130: 307-320
Ea and Ep, the endoderm precursors, sink in towards the center of the embryo. (DIC imaging)
As Ea and Ep sink in towards the center of the embryo, their neighbors surround them. (DIC imaging)
Time lapse confocal images of a live embryo labeled with SynaptoRed to visualize cell membranes. Asterisks label Ea and Ep. (fluorescence imaging)
Time-lapse images of, from left to right, an intact embryo, a devitellinized embryo, and the progeny of an isolated P1 cell. (DIC imaging)