Effect of plant hormones on the tRNA isoacceptor spectrum of wheat

The plant hormones auxin, cytokinin and gibberellic acid, which stimulate plant growth and development, induce significant changes in the isoacceptor spectra of various tRNAs. The present experiments revealed that the treatment of wheat seedlings with auxin, cytokinin or gibberellic acid resulted in the appearance of new isoacceptors in the spectra of three tRNA groups specific for amino acids (methionine, tyrosine and valine). These new isoacceptors may be beneficial for the synthesis and regulation of the proteins induced by the plant hormones.