title: Control of differentiation by calcium and sodium ions in Hydra pseudoligactis.
mesh_terms: D000818:Animals; D002118:Calcium / Q000494:pharmacology*; D002454:Cell Differentiation / Q000187:drug effects*; D002463:Cell Membrane Permeability / Q000187:drug effects*; D003063:Cnidaria / Q000187:drug effects*; D006133:Growth Substances / Q000494:pharmacology*; D012964:Sodium / Q000494:pharmacology*
chemical_list: D006133:Growth Substances; D012964:Sodium; D002118:Calcium