Biosynthesis of resin terpenes in leaves and glandular hairs of Newcastelia viscida

Dell, B. and McComb, A.J. (1978) Biosynthesis of resin terpenes in leaves and glandular hairs of Newcastelia viscida. Journal of Experimental Botany, 29 (1). pp. 89-95.

Abstract

Label from 14CO2 and [2-14C]mevalonic acid was incorporated into resin components of Newcastelia viscida. About 25% of the label from [2-14C]MVA was incorporated into resin components after 4 h. Approximately 80% of the label in the resin was in a TLC band coinciding with the major terpenoid components, with 60% associated with the major tricyclic diterpene, a pimaradiene which contributes 15% to the leaf resin dry weight. Experiments with detached trichomes showed about 0·01% incorporation of label from [2-14C]MVA into pimaradiene, with most of the [abel being associated with β-sitosterol. It is proposed that the glandular hairs are the sites of terpene resin synthesis, as well as secretion, in this species.

Publication Type:	Journal Article
Murdoch Affiliation:	School of Environmental and Life Sciences
Publisher:	Oxford University Press
Copyright:	© Oxford University Press
URI:	http://researchrepository.murdoch.edu.au/id/eprint/17509

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