The Effect of Mechanical Wounding on the Composition of Essential Oil from Ocimum Minimum L. Leaves
| Autor: | Dimitrios Zabaras, S. G. Wyllie |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2001 |
| Předmět: |
linalool
principal component analysis Monoterpene Pharmaceutical Science Article essential oil Analytical Chemistry law.invention Terpene lcsh:QD241-441 chemistry.chemical_compound Camphor Linalool lcsh:Organic chemistry law Drug Discovery Botany Oleoresin Physical and Theoretical Chemistry Essential oil Ocimum minimum biology integumentary system Organic Chemistry Ocimum biology.organism_classification wounding Eugenol chemistry Chemistry (miscellaneous) Molecular Medicine eugenol |
| Zdroj: | Molecules, Vol 6, Iss 2, Pp 79-86 (2001) Molecules : A Journal of Synthetic Chemistry and Natural Product Chemistry Molecules Volume 6 Issue 2 Pages 79-86 |
| ISSN: | 1420-3049 |
| Popis: | Dimitrios Zabaras* and S. Grant WyllieCentre for Biostructural and Biomolecular Research, University of Western Sydney Hawkesbury, Bourke Str, Richmond, New South Wales 2753, Australia. Tel.: (612) 45701640, Fax: (612) 45701621. * Author to whom correspondence should be addressed. E-mail: d.zabaras@uws.edu.auReceived: 10 September 2000 / Accepted: 30 November 2000 / Published: 16 January 2001Abstract: The effect of mechanical damage on the composition of the essential oil obtained from eugenol-rich Ocimum minimum leaves was determined over 48 hours. Changes in the levels of five oil-constituents were detected in the first post-wounding day but only one of those components (camphor) exhibited the same behaviour the day after. The levels of eugenol (-4.8%) and linalool (+2.5%) were affected the most by the wounding process. Principal component analysis (PCA) showed the post-wounding response to be independent from the pre-wounding levels of the particular compounds expressing the response and from the overall leaf oil-composition. Keywords: Ocimum minimum, wounding, essential oil, linalool, eugenol, principal component analysisIntroductionThe phenomenon of induced defense and its implications has been well documented in several commercially important crops such as corn [1,2], cotton [3-5], cabbage [6] and potato [7]. However, limited information exists on the response of terpene accumulating plants to attack by arthropods or microbial pathogens.To datestudies on Grand fir oleoresin (Abies grandis) have shown that stem wounding induces an increased activity of monoterpene cyclases [8,9] although a concomitant increase in monoterpene olefins in the stem could not be demonstrated [10].Ocimum minimum L. (Bush basil) (family Lamiaceae) is native to India and is known worldwide mainly due to the aromatic and medicinal properties of the essential oil obtained from its aerial parts |
| Databáze: | OpenAIRE |
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