title: [Circadian rhythm of cell division and mitosis duration in the root meristem of the common pea under normal conditions and under the influence of thyroxine].
abstract: Daily rhythms of the mitotic activity (MA) and mitosis duration were studied in meristem of the Pisum sativum L. primary roots. It is determined that MA increases in the day time. The daily rhythm of mitosis duration is absent. The germination of Pisum sativum seeds in solution with 1-thyroxine revealed that thyroxine increases average diurnal MA and results in formation of two-phases rhythm of mitosis number. The additional (night) increase of MA is connected with prolongation of mitosis.
mesh_terms: D002940:Circadian Rhythm / Q000187:drug effects*; D008938:Mitosis / Q000187:drug effects*; D013974:Thyroxine / Q000494:pharmacology*; D014675:Vegetables
chemical_list: D013974:Thyroxine
vernacular_title: Issledovanie sutochnogo ritma kletochnogo deleniia i vremeni mitoza v meristeme kornia posevnogo gorokha v norme i pri deĭstvii tiroksina