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  • Title: Mass spectrometric analysis of cytokinins in plant tissues : v. Identification of the cytokinin complex of datura innoxia crown gall tissue.
    Author: Palni LM, Summons RE, Letham DS.
    Journal: Plant Physiol; 1983 Jul; 72(3):858-63. PubMed ID: 16663099.
    Abstract:
    The cytokinin complex of Datura innoxia Mill. crown gall tissue was purified by ion exchange, Sephadex LH-20 chromatography and reversed-phase high performance liquid chromatography. By gas chromatography-mass spectrometry using (2)H-labeled compounds, the following cytokinins were identified in the basic fraction eluting from a cation exchange column: zeatin, zeatin riboside, dihydrozeatin, dihydrozeatin riboside, their corresponding O-glucosides, 7- and 9-glucosides of zeatin, 9-glucoside of dihydrozeatin, isopentenyladenine, and isopentenyladenosine. Zeatin riboside 5'-monophosphate was the major cytokinin nucleotide in the tissue. In addition, dihydrozeatin riboside and isopentenyladenosine were identified in the nucleotide fraction following enymic degradation.
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