Population Variability of Essential Oils of Pinus heldreichii from the Scardo‐Pindic Mountains Ošljak and Galičica |
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Authors: | Biljana Nikoli? Mihailo Risti? Srdjan Bojovi? Zoran Krivo?ej Vlado Matevski Petar D Marin |
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Institution: | 1. University of Belgrade, Institute of Forestry, Kneza Vi?eslava 3, 11000 Belgrade, Serbia, (phone: +38‐111‐3553454;2. fax: +38‐111‐2545969);3. University of Belgrade, Institute for Medicinal Plant Research ‘Dr Josif Pan?i?', Tadeu?a Ko??u?ka 1, 11000 Belgrade, Serbia;4. University of Belgrade, Institute for Biological Research ‘Sini?a Stankovi?', Department of Ecology, Boulevard Despota Stefana 142, 11060 Belgrade, Serbia;5. University of Pri?tina, Department of Biology, Faculty of Natural Sciences, 38220 Kosovska Mitrovica, Serbia;6. Institute of Biology, Faculty of Natural Sciences and Mathematics, University ‘Ss. Kiril and Metodij' and Macedonian Academy of Sciences and Arts, Skopje, Republic of Macedonia;7. University of Belgrade, Faculty of Biology, Institute of Botany and Botanical Garden ‘Jevremovac', Studentski trg 16, 11000 Belgrade, Serbia |
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Abstract: | The needle‐terpene profiles of two natural Pinus heldreichii populations from Mts. O?ljak and Gali?ica (Scardo‐Pindic mountain system) were analyzed. Among the 68 detected compounds, 66 were identified. The dominant constituents were germacrene D (28.7%), limonene (27.1%), and α‐pinene (16.2%). β‐Caryophyllene (6.9%), β‐pinene (5.2%), β‐myrcene (2.3%), pimaric acid (2.0%), α‐humulene (1.2%), and seven additional components were found to be present in medium‐to‐high amounts (0.5–10%). Although the general needle‐terpene profile of the population from Gali?ica was similar to those of the populations from Lov?en, Zeletin, Bjelasica, and Zlatibor‐Pe?ter (belonging to the Dinaric Alps), the principle‐component analysis (PCA) of seven terpenes (β‐myrcene, limonene, β‐elemene, β‐caryophyllene, α‐humulene, δ‐cadinene, and germacrene D‐4‐ol) in 121 tree samples suggested a partial divergence in the needle‐terpene profiles between the populations from the Scardo‐Pindic mountain system and the Dinaric Alps. According to previously reported data, the P. heldreichii samples from the Balkan‐Rhodope mountains lack β‐caryophyllene and germacrene D, but contain γ‐muurolene in their terpene profile. Differences in the terpene composition between populations growing in the three above‐mentioned mountain systems were compared and discussed. |
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Keywords: | Pinus heldreichii Essential oils Terpenes Principal component analysis (PCA) Cluster analysis (CA) |
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