10.22376/ijpbs.2019.10.1.p1-12 Volume 5 Issue 3 2014 (July- September) Different extracts from five medicinal plants were investigated for their antibacterial and antifungal activities by agar diffusion and microdilution methods. The extracts selectively exhibited antibacterial effect and the most active was the aqueous-acetone extract of lessThan i greaterThan Euphorbia balsalmifera lessThan /i greaterThan against the Gram-negative bacteria lessThan i greaterThan Escherichia coli lessThan /i greaterThan , lessThan i greaterThan Klebsiella pneumonia lessThan /i greaterThan and lessThan i greaterThan Pseudomonas aeruginosa lessThan /i greaterThan with diameters of inhibition zones (d) exceeding 9mm and the minimal inhibitory concentrations less than 5mg/ml. This extract also displayed significant antifungal activity against brown rot lessThan i greaterThan Fomitopsis palustris lessThan /i greaterThan and carbamic acid methyl ester was identified by gas chromatography/mass spectrometer as a main contributor to this antimicrobial activity. The aqueous-acetone extract of lessThan i greaterThan Sporobolus pyramidalis lessThan /i greaterThan was significantly active against all the fungal strains (d≥9mm) with an exception on lessThan i greaterThan Pycnoporus sanguineus lessThan /i greaterThan . lessThan i greaterThan Scoparia dulcis lessThan /i greaterThan was the most active against both white rot and brown rot fungi (d≥14mm). The antifungal activities of these extracts were found to be comparable to those of the standard Glycyrrhizin Acid Dipotassium Salt, foreseeing their use as sources of fungistats. AHMED YACOUBA COULIBALY, ROKIAH HASHIM, SHAIDA FARIZA SULAIMAN, OTHMAN SULAIMAN AND LILY ZUIN PING ANG. medicinal plant, resistant bacteria, fungistat, Sporobolus pyramidalis, Euphorbia balsamifera, wood decay 428-436