Comparative effects of some extraction solvents on the antimicrobial activity of leaf, bud, capsule and seed crude extracts.

Well diffusion method was used to evaluate the antibacterial activity of , while the antifungal effect was assessed by calculating the reduction percent in the radial growth of mycelia. The inhibition zones exerted by crude extracts varied significantly ( ≤ 0.01). The capsule crude extract (acetone 30%) highly inhibited the growth of (35 mm clear zone). The highest antifungal activity was against with a reduction percent in its radial growth reached to 96%. The bacterial MICs ranged from 20 to 0.5 mg/mL against and respectively. The MIC values for fungi were between 18 mg/mL ( sp.) and 4 mg/mL (). Both type and concentration of the solvent greatly affected the antimicrobial potentials of . The empty capsule and bud of are recognized for the first time as potentially natural resources of effective antimicrobial agents.