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- Title
Accumulation of the labdane diterpene Marrubiin in glandular trichome cells along the ontogeny of Marrubium vulgare plants.
- Authors
Patricia Piccoli; Rubén Bottini
- Abstract
Abstract The content of the diterpene Marrubiin was assessed by GC-FID in leaves of Marrubium vulgare plants along their ontogeny. Maximum accumulation occurred just before flowering time and in fully expanded leaves. After feeding the plants with radio labeled [3H]-geranyl geranyl diphosphate, up to 70% of the radioactivity was recovered in HPLC-Rt coincidental with authentic Marrubiin, which was also characterized by GC-EIMS, thus confirming that the biosynthesis of Marrubiin proceeds through the 1-deoxy-D-xylulose-5-phosphate pathway. The major accumulation of radioactivity occurred in glandular trichome cells, and the product remained stable throughout.
- Subjects
MARRUBIUM; DITERPENES; TRICHOMES; GAS chromatography; FLOWERING time; HIGH performance liquid chromatography; LEAF morphology
- Publication
Plant Growth Regulation, 2008, Vol 56, Issue 1, p71
- ISSN
0167-6903
- Publication type
Article
- DOI
10.1007/s10725-008-9286-3