title: Structural changes of excitable membrane formed on the surface of protoplasmic drops isolated from Nitella.
mesh_terms: D002118:Calcium / Q000494:pharmacology; D000460:Chlorophyta / Q000648:ultrastructure*; D003593:Cytoplasm / Q000502:physiology*; D008027:Light; D008274:Magnesium / Q000494:pharmacology; D008564:Membrane Potentials / Q000187:drug effects; D011188:Potassium / Q000494:pharmacology; D012964:Sodium / Q000494:pharmacology; D012996:Solutions; D013499:Surface Properties; D013500:Surface Tension; D013696:Temperature
chemical_list: D012996:Solutions; D012964:Sodium; D008274:Magnesium; D011188:Potassium; D002118:Calcium