Composition of essential oils from Cupressus lusitanica and a Xylariaceous fungus found on its leaves

A Xylariaceous endophytic fungus was isolated from leaves of Cupressus lusitanica. Essential oil was extracted from these two organisms using the hydrodistillation method and identified by gas chromatography-mass spectrometry and retention index. A variety of monoterpenes, sesquiterpenes and diterpenes were identified in the fungus and the plant, and some of them were co-produced by both organisms. The oil extracted from C. lusitanica was tested against three of the endophytic fungi found in its leaves and showed only slightly antifungal activity.