title: [Dna organization in histone-free nuclei at various stages of rat spermatogenesis].
abstract: Electron microscopy analysis of DNA organization in histone-depleted nuclei of rat spermatogonial cells was performed. It was shown that the rosette-like structures are one of the forms of the loop organization of the meiotic cell nuclear DNA. Ions of bivalent metal play an important role in stabilizing the rosette-like structures of meiotic cells. A scheme for the restructuring of the mitotic organization of nuclear DNA into the meiotic one is suggested.
authors: M V
authors: MV
authors: Glazkov
mesh_terms: D000818:Animals; D002467:Cell Nucleus / Q000032:analysis; D004247:DNA / Q000032:analysis*; D006657:Histones / Q000032:analysis*; D008297:Male; D008540:Meiosis; D009690:Nucleic Acid Conformation; D051381:Rats; D011919:Rats, Inbred Strains; D013091:Spermatogenesis; D013093:Spermatogonia / Q000032:analysis* / Q000648:ultrastructure; D013094:Spermatozoa / Q000032:analysis*
chemical_list: D006657:Histones; D004247:DNA
vernacular_title: Organizatsiia DNK v lishennykh gistonov iadrakh na nekotorykh stadiiakh spermatogeneza krysy.