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Issue 0, 1972
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Terpene biosynthesis. Part V. Interconversions of some monoterpenes in higher plants and their possible role as precursors of carotenoids

Abstract

Feeding of [14C]-labelled p-menth-1-en-8-ol (α-terpineol) or trans-thujan-3-one (isothujone) to Tanacetum vulgare L. or 3,7-dimethylocta-2,6-dien-1-ol (geraniol) to Artemisia annua L. led to significant (0.14–6.7%) uptake of tracer into carotenoids, and the labelling pattern suggested incorporation of either undegraded C10 units or the biogenetic equivalent of 3,3-dimethylallyl pyrophosphate. Tracer uptake (ca. 0.2%) into chlorophyll was consistent with degradation of the precursors to C2 units.

[14C]p-Menth-1-en-8-ol was converted directly into isothujone in T. vulgare, but experiments with [14C,3H]isothujone showed that although possible direct conversion into thujols occurred within 40 h of feeding, longer metabolism times led to extensive degradation of the additive and scrambling of its tracer into other monoterpenes.

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Article information


J. Chem. Soc., Perkin Trans. 1, 1972, 1764-1769
Article type
Paper

Terpene biosynthesis. Part V. Interconversions of some monoterpenes in higher plants and their possible role as precursors of carotenoids

D. V. Banthorpe, H. J. Doonan and A. Wirz-Justice, J. Chem. Soc., Perkin Trans. 1, 1972, 1764 DOI: 10.1039/P19720001764

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