Contribution to the understanding of the mechanism of cytokinesis in plant cells: the action of deoxyguanosine on the kinetics of a root meristem cell population.
The kinetics of binucleate cells, formed by the action of deoxyguanosine, are studied using three methods: in a population synchronized with hydroxyurea, by autoradiography after pulse-labelling, and in a sample of a cell population morphologically located at the M--G1 limit. Deoxyguanosine induces a slowing down in S and G2, independent of the inhibition of cytokinesis. It is only when it takes effect during the G2 stage that deoxyguanosine brings about the formation of binucleate cells.
D002453:Cell Cycle / Q000187:drug effects*; D002467:Cell Nucleus / Q000648:ultrastructure; D003584:Cytological Techniques; D003849:Deoxyguanosine / Q000494:pharmacology*; D006918:Hydroxyurea / Q000494:pharmacology; D059828:Plant Cells; D010944:Plants / Q000187:drug effects* / Q000648:ultrastructure
D003849:Deoxyguanosine; D006918:Hydroxyurea