Abstract
INCUBATION of de-embryoed wheat or barley grains in the presence of gibberellic acid induces α-amylase activity in the endosperm which is greater than that of tissue incubated in the absence of the hormone1,2. The target tissue of gibberellic acid is the aleurone layer3, and the effects of protein synthesis inhibitors4 have indicated that the induction involves a de novo synthesis of the enzyme. Induction of other hydrolytic enzymes in the aleurone tissue by gibberellic acid has also been described5,6.
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EASTWOOD, D., TAVENER, R. & LAIDMAN, D. Sequential Action of Cytokinin and Gibberellic Acid in Wheat Aleurone Tissue. Nature 221, 1267 (1969). https://doi.org/10.1038/2211267a0
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DOI: https://doi.org/10.1038/2211267a0
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