The fate of 6 2 3 4 tri hydroxy 3 methylbutylamino purine and n purin 6 yl glycine injected into developing lupine lupinus albus fruits
Van Staden, J.
Zeitschrift fuer Pflanzenphysiologie 114(1): 59-64
Both 6-(2,3,4-trihydroxy-3-methylbutylamino)purine and N-(purin-6-yl)glycine were metabolized slowly when applied to developing fruits of L. albus. Biological activity which co-chromatographed with glucosylzeatin, ribosylzeatin and zeatin was detected in the developing seeds. As the recovered radioactivity did not co-elute with glucosylzeatin or zeatin it would appear as if the applied oxidation products of zeatin were not incorporated readily into free cytokinins. These compounds may play an important role in the inactivation or the regulation of endogenous cytokinin levels in fruits and seeds.