title: Suggestive structural evidence for macronuclear "subnuclei" in Tetrahymena pyriformis GL.
mesh_terms: D000818:Animals; D002467:Cell Nucleus; D002875:Chromosomes; D006238:Haploidy; D008854:Microscopy, Electron; D008858:Microscopy, Phase-Contrast; D008938:Mitosis; D011123:Polyploidy; D013194:Staining and Labeling; D013768:Tetrahymena / Q000166:cytology* / Q000254:growth & development