title: Isolation of macronuclei from the ciliate Tetrahymena pyriformis GL.
mesh_terms: D000818:Animals; D002467:Cell Nucleus; D008854:Microscopy, Electron; D008858:Microscopy, Phase-Contrast; D013539:Simian virus 40; D013501:Surface-Active Agents; D013768:Tetrahymena
chemical_list: D013501:Surface-Active Agents