Cytokinins from apple extract and coconut milk

Abstract

Cytokinin containing extracts of young apples and of coconut milk were purified and subjected to chemical treatments designed to modify the chemical natures of the cytokinins. Chromatographic comparisons were then made between the cytokinins of the treated and untreated extracts and zeatin and zeatin nucleoside. The results suggest that although zeatin may be one of the cytokinins of coconut milk it does not occur in apple extract. Some evidence was obtained that the apple cytokinin is a derivative of zeatin but it does not seem to be zeatin nucleotide. © 1970 CSIRO.