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BY-NC-ND 3.0 license Open Access Published by De Gruyter June 2, 2014

Biosynthetic Origin of the 1-Oxygen of Umbelliferone in the Root Tissue of Sweet Potato

  • Bun-ichi Shimizu EMAIL logo , Kosuke Kai , Michiko Tamai , Hikaru Yamaguchi , Masaharu Mizutani and Kanzo Sakata

Oxidation of p-coumarate at the ortho-position is a key step to form umbelliferone. A tracer analysis using 18O2 was performed in order to take information about the formation of umbelliferone in the root tissue of sweet potato. Mass fragmentation experiments revealed incorporation of an 18O atom into the 1-position of umbelliferone. This result indicates that the lactone of umbelliferone is formed via ortho-hydroxylation of the p-coumarate unit using O2.

Received: 2008-4-10
Revised: 2008-5-13
Published Online: 2014-6-2
Published in Print: 2008-10-1

© 1946 – 2014: Verlag der Zeitschrift für Naturforschung

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

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