Regulators of cell division in plant tissues : XXI. Distribution coefficients for cytokinins.
The distribution of six cytokinins [zeatin, zeatin riboside, 6-(4-hydroxy-3-methylbutylamino)purine, 6-(3-methylbut-2-enylamino)purine and its riboside, and kinetin] between aqueous buffers (pH 3.0 and 7.0) and several organic solvents was assessed and partition coefficients calculated. Purification of cytokinins from plant extracts by solvent partition methods is discussed.
Research School of Biological Sciences, Australian National University, Box 475, P.O., 2601, Canberra City, A.C.T., Australia.
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Letham