eng Oriental Scientific Publishing Company Biosciences Biotechnology Research Asia 0973-1245 2016-02-02 4 2 477 481 5913 article M.S. Owolabi 1 M.O. Oladimeji 2 L. Labunmi 2 G. Singh 3 Marimuthu P. 3 V. A. Isidorov 4 Department of Chemistry, Lagos State University, P.M.B 1087, Ojo, Lagos (Nigeria) Department of Chemistry, Federal University of Technology, Akure (Nigeria) Chemistry Department, DDU Gorakhpur University, Gorakhpur - 273 009 (India) Institute of Chemistry, Bialystok University, UI. Hurtowa 1, 15-399, Bialystok (Poland) The chemical analysis of the essential oil of the dried seed nuts of Monodora myrsitica (Gaertn.) Dunal was investigated by GC and GC-MS. The results showed predominantly of hydrocarbon monoterpenes; p-cymene (31.5%), a-phellandrene (18.1%), a-pinene (6.1%), and b-pinene (5.1%)as major constituents. The bioactivity of the essential oil was evaluated against six plant pathogens by Micro broth dilution method. The essential oil suppressed the growth of these plant pathogenic fungi in culture and shows high to low significant potency. https://www.biotech-asia.org/vol4no2/chemical-constituents-and-bioactivity-of-steam-distilled-oil-of-monodora-myristica-gaertn-dunal-against-some-plant-pathogenic-fungi/ Monodora myrsitica; essential oil chemical analysis; hydrocarbon monoterpenes