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Université Jean Monnet – Saint-Etienne |  |
Journal articles
Extracellular Localization of the Diterpene Sclareol in Clary Sage (Salvia sclarea L., Lamiaceae)
Abstract : Sclareol is a high-value natural product obtained by solid/liquid extraction of clary sage (Salvia sclarea L.) inflorescences. Because processes of excretion and accumulation of this labdane diterpene are unknown, the aim of this work was to gain knowledge on its sites of accumulation in planta. Samples were collected in natura or during different steps of the industrial process of extraction (steam distillation and solid/liquid extraction). Samples were then analysed with a combination of complementary analytical techniques (gas chromatography coupled to a mass spectrometer, polarized light microscopy, environmental scanning electron microscopy, two-photon fluorescence microscopy, second harmonic generation microscopy). According to the literature, it is hypothesized that sclareol is localized in oil pockets of secretory trichomes. This study demonstrates that this is not the case and that sclareol accumulates in a crystalline epicuticular form, mostly on calyces.
Cited literature [66 references]
https://hal-ujm.archives-ouvertes.fr/ujm-00749471
Contributor : Thomas Olivier Connect in order to contact the contributor
Submitted on : Friday, May 29, 2020 - 11:53:08 AM
Last modification on : Wednesday, August 25, 2021 - 8:18:01 AM
Contributor : Thomas Olivier Connect in order to contact the contributor
Submitted on : Friday, May 29, 2020 - 11:53:08 AM
Last modification on : Wednesday, August 25, 2021 - 8:18:01 AM
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2012_Caissard_Plos One_1.pdf
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