Cytokinin-induced activation of polyribosomes in the protonema of Ceratodon purpureus.

Autor: Gwóźdź, Edward A., Szweykowska, Alicja M.
Předmět:
Zdroj: Physiologia Plantarum; Jun82, Vol. 55 Issue 2, p214-220, 7p
Abstrakt: A ribosomal preparation from N6-isopentenyladenine-treated protonema of Ceratodon purpureus (Hedw.) Brid. exhibited an increased activity of protein synthesis in a cell-free system as compared to a control preparation. The ratio of polyribosomes to monoribosomes was the same in both preparations, and it is assumed that an activation of pre-existing polyribosomes was responsible for the increased efficiency in protein synthesis. An electrophoretic fractionation of the in vitro translation product showed an enhanced synthesis of some polypeptide fractions in the cytokinin variant. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index