title: [Periodicity of the changes in DNA and RNA levels in Penicillium chrysogenum conidia at the stage preceding the S-period].
abstract: It is ascertained, that conidia enter S-period after 11 hours of incubation on Capek-Dock medium and after 7 hours of incubation on Reistrick medium. Five peaks of DNA and RNA synthesises preceding the S-period were revealed. Moreover, DNA decay to a certain degree depending on the peak number is characteristic for every DNA synthesis peak. By the moment the cell enters into S-period the amount of DNA remains at the initial level. It is noted, that the RNA synthesis curve corresponds to the character of the DNA synthesis curve. A hypothesis is offered to explain the data obtained, which pressuposes the non-specific duplication of the greater part of the genome and its selective degradation.
mesh_terms: D004271:DNA, Fungal / Q000096:biosynthesis*; D007399:Interphase; D007700:Kinetics; D010407:Penicillium / Q000378:metabolism*; D010408:Penicillium chrysogenum / Q000166:cytology / Q000378:metabolism*; D010507:Periodicity; D012331:RNA, Fungal / Q000096:biosynthesis*
chemical_list: D004271:DNA, Fungal; D012331:RNA, Fungal
vernacular_title: Tsiklichnost' izmeneniĭ soderzhaniia DNK i RNK v konidiiakh Penicillium chrysogenum na stadii, predshestvuiushcheĭ S-periodu.