title: Potassium: a factor necessary for the expression of mating reactivity in Paramecium caudatum.
mesh_terms: D000641:Ammonia / Q000494:pharmacology; D000818:Animals; D002586:Cesium / Q000494:pharmacology; D003227:Conjugation, Genetic / Q000187:drug effects*; D003470:Culture Media; D008851:Micropore Filters; D009566:Nitrates / Q000494:pharmacology; D010042:Ouabain / Q000494:pharmacology; D010247:Paramecium / Q000254:growth & development*; D010936:Plant Extracts; D011188:Potassium / Q000494:pharmacology*; D011189:Potassium Chloride / Q000494:pharmacology; D012964:Sodium / Q000494:pharmacology; D013054:Spectrophotometry, Atomic; D013501:Surface-Active Agents / Q000494:pharmacology
chemical_list: D003470:Culture Media; D009566:Nitrates; D010936:Plant Extracts; D013501:Surface-Active Agents; D002586:Cesium; D010042:Ouabain; D011189:Potassium Chloride; D000641:Ammonia; D012964:Sodium; D011188:Potassium