title: Microiontophoretic injection of calcium ions or of cyclic AMP causes rapid shape changes in fertilized eggs of Ilyanassa obsoleta.
mesh_terms: D000367:Age Factors; D000818:Animals; D002118:Calcium / Q000008:administration & dosage / Q000494:pharmacology*; D000242:Cyclic AMP / Q000008:administration & dosage / Q000494:pharmacology*; D005260:Female; D007478:Iontophoresis; D012908:Snails / Q000166:cytology; D015053:Zygote / Q000166:cytology / Q000187:drug effects*
chemical_list: D000242:Cyclic AMP; D002118:Calcium