title: Size changes in isolated nuclei of Amoeba proteus on treatment with polyionic substances.
mesh_terms: D000255:Adenosine Triphosphate / Q000494:pharmacology; D000656:Amoeba / Q000166:cytology* / Q000502:physiology; D000818:Animals; D002462:Cell Membrane; D002467:Cell Nucleus / Q000187:drug effects*; D003470:Culture Media; D004573:Electrolytes / Q000494:pharmacology; D004586:Electrophoresis; D006493:Heparin / Q000494:pharmacology; D006863:Hydrogen-Ion Concentration; D008239:Lysine / Q000494:pharmacology; D008274:Magnesium / Q000494:pharmacology; D008858:Microscopy, Phase-Contrast; D009995:Osmosis
chemical_list: D003470:Culture Media; D004573:Electrolytes; D000255:Adenosine Triphosphate; D006493:Heparin; D008274:Magnesium; D008239:Lysine