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Publication type: Journal Article
Document type: Full Paper

Year: 2008

Author(s): Schmiderer, C; Grassi, P; Novak, J; Weber, M; Franz, C

Title: Diversity of essential oil glands of clary sage (Salvia sclarea L., Lamiaceae).

Source: Plant Biol (Stuttg). 2008; 10(4):433-440



Authors Vetmeduni Vienna:

Franz Chlodwig
Novak Johannes
Schmiderer Corinna

Vetmed Research Units
Institute of Animal Nutrition and Functional Plant Compounds


Abstract:
The Lamiaceae is rich in aromatic plant species. Most of these species produce and store essential oils in specialised epidermal oil glands, which are responsible for their specific flavour. Two types of glands producing essential oil and possessing different morphological structure can be found in Salvia sclarea: peltate and capitate glands. The content of single oil glands from different positions on the plant (corolla, calyx and leaf) were sampled using an SPME fibre and analysed by gas chromatography in order to study variability of the essential oil composition. It was found that the composition of terpenoids is quite variable within an individual plant. Capitate oil glands mainly produce three essential oil compounds: the monoterpenes linalool and linalyl acetate, and the diterpene sclareol. Peltate oil glands, however, accumulate noticeable concentrations of sesquiterpenes and an unknown compound (m/z = 354). Furthermore, the oil composition varies within each gland type according to the plant organ. Linalool and linalyl acetate are characteristic substances of flowers, whereas the sesquiterpenes occur in higher proportions in leaves. Even within one gland type on a single leaf, the chemical variability is exceedingly high.

Keywords Pubmed: Chromatography, Gas
Microscopy, Electron, Scanning
Oils, Volatile/chemistry
Oils, Volatile/metabolism*
Plant Oils/chemistry
Plant Oils/metabolism*
Salvia/metabolism*
Salvia/ultrastructure
Solid Phase Extraction


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