title: [The nucleolus as a possible site of endoplasmic reticulum formation].
abstract: Complex investigations of plant and animal cells showed the nucleolus as a compartmental pulsatile system with the cycle of about one hour. Two main constitutions of the nucleolus are revealed by vital cytochemical methods: lipid-positive and lipid-negative ones. A new model of transcription is suggested. According to this model the nucleolus is a place of endoplasmic reticulum formation. The programmed endoplasmic reticulum goes out to the cytoplasm through a special channel just as the nucleolus contracts.
mesh_terms: D000818:Animals; D002466:Cell Nucleolus / Q000378:metabolism / Q000502:physiology* / Q000648:ultrastructure; D002478:Cells, Cultured; D004721:Endoplasmic Reticulum / Q000502:physiology*; D006651:Histocytochemistry; D050356:Lipid Metabolism; D051379:Mice; D008854:Microscopy, Electron; D008858:Microscopy, Phase-Contrast; D010944:Plants
vernacular_title: Iadryshko kak vozmozhnoe mesto formirovaniia éndoplazmaticheskogo seti.