**2.1 Material used for EOs extraction and chemical analysis**

Trunk wood and root burl samples of *T. articulata* were collected from sweepings of craft processing workshops in Khemisset Region (central plate of Morocco), while samples of *C. atlantica* sawdust were collected from wood sawmill in the region of Azrou (Middle Atlas Mountains of Morocco). Sawdust was then sieved into particles of 1 mm size and triplicate samples of 250 g were subjected to hydrodistillation for 4 hours to obtain pure essential oils (EOs).

The chemical analysis and component identification of EOs were performed by gas chromatography (GC-FID) and by gas chromatography coupled with a mass spectroscopy (GC-MS). The identification of EO components was achieved by comparison of their retention indices (RI) relative to (C8-C22) *n*-alkanes with those of known compounds, and by comparison of similar mass spectra using Wiley/NBS mass spectral library of the GC-MS data system and other published mass spectra [19]. The percentage compositions of samples were calculated according to the area of the chromatographic peaks using the total ion current.

## **2.2 Material used for bioassay**

Bioactivity of EOs extracted from *T. articulata* and *C. atlantica* woods was assessed in bioassay against the following wood-decaying basidiomycetes fungi: *Gloeophyllum trabeum* (BAM Ebw.109 strain), *Oligoporus placenta* (FPRL. 280 strain), *Coniophora puteana* (BAM Ebw. 15 strain), and *Trametes versicolor* (CTB 863 A strain). Fungi strains originated from the mycological collection of the Laboratory of Botany, Mycology and Environment, Faculty of Sciences in Rabat, Morocco.
