By: Jamila Bouarda^1,2, Mustapha Labhilili², Ilyass Maafa^3,4, Aicha El Aissami³, MohammedBenchachoˡ and Fatiha Bentata^2*

ˡ Laboratory of Botanic, Biotechnology and Plant Protection, Department of Biology, Faculty of Science University Ibn Tofail, Kenitra, Morocco

² Research Unit of Plant Breeding and Conservation of Plant Genetic Resources, National Institute for Agricultural Research, Rabat, Morocco

³Research Center in Plant and Microbial Biotechnologies, Biodiversity and Environment, Faculty of Sciences, Mohammed V University of Rabat, Morocco

⁴International Center for Agricultural Research in the Dry Areas (ICARDA), Rabat 10080, Morocco

Abstract:

In our study, the application of Oregano was investigated in vitro against ten isolates of Fusarium culmorum the causative agent of wheat root rot in Morocco. The chemical composition of essential oils extracted by hydrodistillation from the aerial parts of Origanum onites and Origanum compactum was analyzed by GC. The major components of O. onites Eo were Carvacrol (29,7%) and p-cymene (22,48%) while Thymol (26,25%) was the predominant constituent in O. compactum EO. The results of the antifungal activity revealed that both oils have an inhibitory effect against all tested isolates. O. onites and O.compactum Eos inhibited the growth of all isolates tested by 100% at the concentration of 1 µL.mL⁻¹ and 1.2 µL.mL⁻¹ respectively. They have the potential to be used as antifungal agents for the control of wheat Rot root.

Chemical-composition-and-antifungal-properties-of-Oregano-essential-oils-against-the-Moroccan-soil-born-pathogen-Fusarium-culmorum

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