The complex of O-glucosylzeatin derivatives formed in Populus species

Colin C. Duke*, David S. Letham, Charles W. Parker, John K. MacLeod, Roger E. Summons

*Corresponding author for this work

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Abstract

When zeatin was supplied to excised leaves of Populus alba, the principal metabolites formed were adenosine, O-β-d-glucopyranosyl-cis-zeatin (derived from cis-zeatin in the commercial zeatin used), O-β-d-glucopyranosylzeatin, and two new metabolites, namely, O-β-d-glucopyranosyldihydrozeatin and O-β-d-glycopyranosyl-9-β-d-ribofuranosyldihydrozeatin, the structures of which were confirmed by unambiguous synthesis. Chromatographic studies indicated that adenosine 5′-phosphate, zeatin 7-glucopyranoside, zeatin 9-glucopyranoside, dihydrozeatin and zeatin 9-riboside were minor metabolites. The principal metabolites of zeatin 9-riboside in P. nigra leaves were the new metabolites O-β-d-glucopyranosyl-9-β-d-ribofuranosylzeatin (synthesized chemically) and O-β-d-glucopyranosl-9-β-d-ribofuranosyldihydrozeatin.

Original languageEnglish
Pages (from-to)819-824
Number of pages6
JournalPhytochemistry
Volume18
Issue number5
DOIs
Publication statusPublished - 1979

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Keywords

  • cytokinin metabolism
  • O-glucosyl derivatives of zeatin.
  • Populus spp.

Cite this

Duke, C. C., Letham, D. S., Parker, C. W., MacLeod, J. K., & Summons, R. E. (1979). The complex of O-glucosylzeatin derivatives formed in Populus species. Phytochemistry, 18(5), 819-824. https://doi.org/10.1016/0031-9422(79)80021-7