Yolk syncytial layer nuclei undergo epiboly and converge dorsally during late gastrulation. Video made available by Mark Cooper through Zebrafish - The Living Laboratory.

Starved wild-type Dictyostelium cells migrate toward the cathode (left). A direct-current electric field of 10 Vpcm was applied and the cells were observed for 20 min at 5-sec intervals. (Scale bar, ...

Starved Dictyostelium cells lacking cGMP-binding protein C (gbpC-; no guanylyl cyclase activity) and in medium supplemented with 60 µM LY294002 (a PI3K inhibitor) and 1µM cAMP migrate toward the ano...

Starved cells of a chemotaxis-deficient mutant of Dictyostelium, KI-8 (lacking guanylyl cyclase activity) migrate toward the anode (right) with a slower migration velocity than that of wild-type cells...

Starved Dictyostelium cells lacking both guanylyl cyclases (GCase A and GCase), but expressing GCase with an inactivated catalytic domain (sGCΔCat) and in medium supplemented with 60 µM LY294002 (a ...

Zebrafish Notogenesis and Early Neurulation. Mediolateral intercalation produces convergent-extension of the notochordal rudiment. Cells within the center of the notochord elongate and are incorporate...

Yolk syncytial layer cell nuclei exhibit convergence and extension behaviors during late gastrulation. Video made available by Mark Cooper through Zebrafish - The Living Laboratory.

Morphogenesis of the ventral yolk syncytial layer (YSL) from sphere stage to the end of gastrulation. The last round of nuclear division occurs before marginal band contraction and epiboly begins. As ...

Timelapse of dorsal yolk syncytial layer (YSL) nuclear movements during zebrafish gastrulation. A marginal band of YSL nuclei undergo epiboly toward the vegetal pole while internal-YSL (I-YSL) nuclei ...

Timelapse of yolk syncytial layer (YSL) nuclear movements during gastrulation from a dorsal-anterior view shows epiboly, early animal pole directed movements of I-YSL nuclei, and convergence and exten...