Untersuchungen zur Biosynthese von 2,6-Didesoxy-3-O-methylhexosen in Nerium oleander*

P. Bauer; G. Franz

doi:10.1055/s-2007-969456

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Planta Med 1985; 51(3): 202-205
DOI: 10.1055/s-2007-969456

Research Articles

Untersuchungen zur Biosynthese von 2,6-Didesoxy-3-O-methylhexosen in *Nerium oleander**

P. Bauer, G. Franz

Lehrstuhl für Pharmazeutische Biologie der Universität Regensburg, D-8400 Regensburg

* Prof. Dr. E. Stahl zum 60. Geburtstag

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Publication History

1984

1985

Publication Date:
26 February 2007 (online)

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Abstract

¹⁴C-Labelled hexoses, progesterone, glucosyl-adynerine and digitoxigenine-¹⁴C-glucosid were fed to leaves of Nerium oleander L. The incorporation of these substrates into gentiobiosyl-adynerine, a genuine triglycoside, was studied. Glucose seems to be the natural precursor for the sugar chain. Formation of the gentiobiosyl residue was found to occur sequentially. After feeding digitoxigenine-¹⁴C-glucosid to the leaves of Nerium oleander, no turnover of this tentative precursor could be detected. It was concluded that cardenolide-glucosides do not seem to play a role in the biosynthesis of deoxysugars.