GLUTAMIC DECARBOXYLASE IN RELATION TO LEAF ONTOGENY AND VERNALIZATION

Abstract
The concentrations of glutamic acid and γ-aminobutyric acid varied with the physiological age of each of the first three leaves of Triticum vulgare (var. Rideau). Vernalization did not alter this amino acid – leaf age relationship. The activity of glutamic decarboxylase was dependent both on leaf age and on leaf ontogeny.