Kinetin Inhibition of 3H-Uracil and 14C-Leucine Incorporation by Tobacco Cells in Suspension Culture
- 1 March 1971
- journal article
- Published by Oxford University Press (OUP) in Plant Physiology
- Vol. 47 (3) , 400-403
- https://doi.org/10.1104/pp.47.3.400
Abstract
The rate of (14)C-leucine and (3)H-uracil incorporation by tobacco cells (Nicotiana tabaccum var. Samsun N.N.) in suspension culture was simultaneously decreased by the addition of kinetin at concentrations above 2.5 x 10(-5)m. Ribosomal RNA was the first RNA species affected by kinetin. The purine derivatives, adenine and N(6)-methyl-aminopurine, which exhibit low cytokinin activity overcame the inhibitory effects of kinetin. However, purine derivatives without cytokinin activity, guanine, N(6,6)-dimethyl-aminopurine, and 2-aminopurine, did not relieve kinetin inhibition.Keywords
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