Chemical composition,phytotoxic and antifungal activities of <Emphasis Type="Italic">Pinus pinea</Emphasis> essential oil |
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| Authors: | Ismail Amri Samia Gargouri Lamia Hamrouni Mohsen Hanana Tarek Fezzani Bassem Jamoussi |
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| Institution: | 1.Département de Biologie, Faculté des Sciences de Bizerte,Université de Carthage,Bizerte,Tunisia;2.Laboratoire d’Ecologie Forestière,Institut National de Recherches en Génie Rural,Ariana,Tunisia;3.Laboratoire de Protection des Végétaux,Institut National de la Recherche Agronomique de Tunisie,Ariana,Tunisia;4.Laboratoire de Physiologie Moléculaire des Plantes,Centre de Biotechnologie de Borj-Cédria,Hammam-Lif,Tunisia;5.Laboratoire de Chimie,Institut Supérieur d’Education et de Formation Continue,Le Bardo,Tunisia |
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| Abstract: | The chemical composition of essential oils isolated by hydrodistillation from the aerial parts of Tunisian Pinus pinea Linn. was analyzed by GC and GC/MS. Sixty-six compounds were identified, representing 98.5% of total oil, which was found
to be rich in monoterpene hydrocarbons (73.1%) particularly limonene (54.1%), α-pinene (7.7%), and β-pinene (3.4%). The yield
and the physico-chemical properties were determined. Results of the antifungal activity study by in vitro contact assay showed
that P. pinea oil significantly inhibited the growth of ten plant pathogenic fungi. Moreover, herbicidal properties of the oil, tested
on Sinapis arvensis L., Lolium rigidum Gaud., and Raphanus raphanistrum L., indicated that the oil completely inhibited the seed germination at a high concentration, while at low doses the oil
acted by decreasing and delaying the germination and inhibiting the seedling growth of all tested weeds unlike the commercial
herbicide. Our results showed that P. pinea essential oil could be valorized as bioproduct for biocontrol of weeds and fungal plant diseases. |
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