title: [Molecular mechanisms for establishing the block to polyspermy at fertilization of Xenopus laevis egg (author's transl)].
mesh_terms: D000818:Animals; D002241:Carbohydrates / Q000502:physiology; D002463:Cell Membrane Permeability; D002823:Chorion / Q000032:analysis / Q000502:physiology*; D005321:Extraembryonic Membranes / Q000502:physiology*; D005260:Female; D005306:Fertilization; D037102:Lectins / Q000302:isolation & purification; D008024:Ligands; D008954:Models, Biological; D010063:Ovum / Q000648:ultrastructure; D014981:Xenopus; D015053:Zygote
chemical_list: D002241:Carbohydrates; D037102:Lectins; D008024:Ligands