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Use of isopentenyladenosine and dihydrozeatin riboside antibodies for the quantification of cytokinins

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Abstract

Antisera have been raised in rabbits against dihydrozeatin riboside and isopentenyladenosine, and their cross-reactivity characteristics have been examined in detail. These antisera, together with an antiserum previously raised against zeatin riboside, have been employed in radioimmunoassays. Separative procedures that enable a wide range of naturally occurring cytokinins to be separated prior to analysis by radioimmunoassay have been developed. The accuracy with which the following cytokinins can be quantified by our methods, which employ tritiated cytokinin recovery markers, has been estimated: zeatin riboside, zeatin, dihydrozeatin riboside, dihydrozeatin, O-glucosyl zeatin riboside, O-glucosyl zeatin, O-glucosyl dihydrozeatin riboside, O-glucosyl dihydrozeatin, zeatin-9-glucoside, zeatin-7-glucoside, lupinic acid, isopentenyladenosine, and isopentenyladenine.

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Badenoch-Jones, J., Parker, C.W. & Letham, D.S. Use of isopentenyladenosine and dihydrozeatin riboside antibodies for the quantification of cytokinins. J Plant Growth Regul 6, 159–182 (1987). https://doi.org/10.1007/BF02303051

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