COMPOSITION OF THE VOLATILE OIL EXTRACTED FROM ABIES ALBA MILLER LEAVES PARASITIZED BY MELAMPSORELLA CARYOPHYLLACEARUM (DC.) J. SCHR?T.

摘要

Researches results highlights both qualitative and quantitative influences exercised by the parasitic species Melampsorella caryophyllacearum on the composition of the volatile oil extracted from Abies alba leaves, prelevated in 2010 from Oituz river basin (Bacau county). The isolation of volatile oils has been realized by hydrodistillation in Neo-Clavenger installation, followed by gas-chromatography coupled with mass spectrometry analysis. The increase of the monoterpenes concentration in the parasitized sample could be explained by the degradative action of the enzymes produced by the pathogenic species Melampsorella caryophyllacearum or by the incapacity of syntheses from these monoterpenes of some compounds presenting a more complex structure in the parasitized plant case.