The composition and antifungal bioassay of the essential oils of differentBetula species growing in Turkey |
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| Authors: | F Demirci B Demirci K H C Baser K Guven |
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| Institution: | (1) Medicinal and Aromatic Plant and Drug Research Centre (TBAM), Anadolu University, 26470 Eskisehir, Turkey;(2) Department of Biology, Faculty of Science, Anadolu University, 26470 Eskisehir, Turkey |
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| Abstract: | FiveBetula species,B. pendula, B. browicziana, B. medwediewii, B. litwinowii, andB. recurvata, were collected from different parts of Turkey. The leaves of these species were hydrodistilled to yield the consequent essential oils. The essential oil compositions were investigated by GC/MS. 14-Hydroxy- -caryophyllene was the main constituent in the oil ofB. pendula. 14-Hydroxy-4,5-dihydro--caryophyllene, a new compound, was identified as the main constituent in the oils ofB. browicziana, B. litwinowii, and B. recurvata. In the oil ofB. medwediewii methyl salicylate was the main compound. Various phytopathogenic fungi were studied by the agar tube dilution technique to test the antifungal activities of the essential oils at 400  g/ml concentration. The essential oils showed strong antifungal activity againstCephalosporium aphidicola, Drechslera sorokinianse, Fusarium solani, andRhizoctonia cerealis.Translated from Khimiya Prirodnykh Soedinenii, No. 2, pp. 126–130, March–April, 2000. |
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| Keywords: | Betula species essential oil GC/MS antifungal activities Cephalosporium aphidicola Drechslera sorokinianse Fusarium solani Phizoctonia cerealis |
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