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Cytokinins and tRNAs: a hypothesis on their competitive interaction via specific receptor proteins
Author(s) -
ROMANOV G. A.
Publication year - 1990
Publication title -
plant, cell and environment
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.646
H-Index - 200
eISSN - 1365-3040
pISSN - 0140-7791
DOI - 10.1111/j.1365-3040.1990.tb01090.x
Subject(s) - cytokinin , translation (biology) , competitive binding , protein biosynthesis , biology , receptor , mechanism (biology) , microbiology and biotechnology , computational biology , biochemistry , chemistry , messenger rna , auxin , gene , physics , quantum mechanics
. A hypothesis concerning the molecular mechanism of cytokinin action in plants is presented. Free cytokinins and some cytokinin‐containing tRNAs are supposed to compete in the binding to a postulated receptor protein. As a result, the activity of some isoacceptor tRNAs would depend on cytokinin concentration in a cell. This explains a stimulatory effect of cytokinins on the translation of a definite set of cellular mRNAs. Various aspects of the hypothesis are briefly discussed.