Abstract
Nuclei isolated from shoots of light-grown dwarf peas in the presence of gibberellic acid [GA] (10-8 [image]) show a higher rate of DNA-dependent RNA synthesis than the untreated nuclei. RNA synthesized by GA-treated nuclei has a different nearest-neighbor frequency and also has a higher average molecular weight than the RNA synthesized by untreated nuclei. Methylated albumin kieselguhr column chromatography showed that GA preferentially enhances the synthesis of the RNA associated with the DNA peak and the tenaciously bound RNA. Gibberellic acid can thus modify the RNA synthesized by isolated nuclei.