[Mammalian protein synthesis in the cytoplasm of a plant cell]

Using immunochemical and, subsequently, autoradiographic methods, the authors have shown that after the injection of the total fraction of polyribosomes isolated from the rat liver in the Acetabularia cytoplasm a protein interacting with the antiserum against rat thyrosine aminotransferase is synthesized. Prospects of using Acetabularia as a test-system for the translation of heterogenous mRNA and mRNP are discussed.