[Demonstration and characteristics of the perinucleolar zone of the nucleus--a new morphological criterion of the nucleolar test system]. / Vyiavlenie i kharakteristika perinukleoliarnoi zony iadra--novogo morfologicheskogo kriteriia nukleoliarnoi test-sistemy.

A dynamic structure of interphase nucleus--perinucleolar zone has been detected and studied in cell systems on high-level transcription and proliferation activity by means of light and fluorescent microscopy methods. A new light-microscopic level classification of nucleoli taking into account the structure of this zone is introduced. The percentage of nucleoli type distribution may be used as criterion of tissue synthesis activity. An introduction of a new morphological criterion in classical Smetana nucleolar test is under discussion.

[The nucleolus as a possible site of endoplasmic reticulum formation]. / Iadryshko kak vozmozhnoe mesto formirovaniia éndoplazmaticheskogo seti.

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.

[Localization of the fluorescent portion of the Y-chromosome in interphase nulcei of human embryonic kidney cell cultures]. / Issledovanie raspolozheniia fluorestsiruiushchei chasti Y-khromosomy v interfaznykh iadrakh kul'tury kletok pochki émbriona cheloveka

The localization and frequency of accurrence of Y-chromosome fluorescent bodies in interphase nuclei in the cellular culture of 4-months male and female human embryos, were studied with fluorochromine method with quinacrine dehydrochloride. In cellular cultures of male embryonic kidney the frequency of Y-chromatin was about 50%. The Y-chromosome structural connection with nuclear membrane and nucleolus was demonstrated.

[Stereoscopic study of chromosome arrangement in the cell cycle. II]. / Stereoskopicheskoe izuchenie raspolozheniia khromosom v kletochnom tsikle. Soobshchenie II

The results obtained testify to the dependence of the interpretation of the interphase nucleus structure on the nucleus axis orientation respective to preparation plane. Variations in arrangement of nucleolus and perinucleolar vacuole with respect to the achromatic pole and centromeric ring are demonstrated.