title: Ultrastructural and time-lapse studies of primary mesenchyme cell behavior in normal and sulfate-deprived sea urchin embryos.
mesh_terms: D000818:Animals; D002448:Cell Adhesion; D002462:Cell Membrane / Q000648:ultrastructure; D002465:Cell Movement; D004475:Ectoderm; D008648:Mesoderm / Q000166:cytology*; D008854:Microscopy, Electron; D009040:Motion Pictures; D011554:Pseudopodia / Q000648:ultrastructure; D012617:Sea Urchins / Q000196:embryology; D013431:Sulfates / Q000494:pharmacology*
chemical_list: D013431:Sulfates