Description:
<jats:p>This work aimed to investigate the total phenolic, flavonoid and tannin contents, the antioxidant and allelopathic activities of the mucilage and essential oils extracted from Cytisus villosus plants collected at two different provenances (Ain Drahem and Feija) from Jendouba Gouvernorate. Total phenolic, flavonoid and tannin contents in the tested macerate extracts were determined using Folin-Ciocalteu, luminum trichloride and Vanillin reagent, respectively. The anti-oxidant activity of the studied essential oils was evaluated in vitro using the DPPH test on the two aerial parts (leaf and branches) of Cytisus villosus. The allelopathic effects was tested on Cuscuta Magnoliopsida seeds. The germination percentage, shoot and root lengths were recorded after seven days. Analyses show the great richness in flavonoids, polyphenols and tannins. The Ain Drahem provenance was found to be richer in secondary metabolites with a higher antioxidant activity than El Feija. Similarly, in both provenances the leaves were significantly richer in phenolic compounds, flavonoids and tannins; with a greater antioxidant activity than the branches. The effect of aqueous extracts of Cytisus triflorus leaves and stems on the germination of Cuscuta Magnoliopsida show an inhibitory effect. The extracts of El Feija provenance have a greater inhibitory effect on the length of stems and rootlets than Ain Drahem.</jats:p>