Abstract
This study evaluated the antifungal effects of various volatile organic compounds (VOCs) against two common pathogens: Fusarium culmorum and Cochliobolus sativus. Among the various VOCs, methyl propanoate (MP) and methyl prop-2-enoate (MA) exhibited remarkable antifungal effects under different experimental conditions (direct or indirect contact) and at different concentrations (500–1000 μM). In addition, the type of antifungal effect (fungistatic or fungicidal) appeared to be strongly correlated with the VOC concentrations. Additional tests revealed that both molecules increased membrane permeability of pathogenic spores, which resulted in a decreased efflux of K+ ions into the intracellular medium.
Highlights
Fusarium culmorum and Cochliobolus sativus are known to cause root rot in different cereal varieties, especially wheat and barley
In the first part of the study, we evaluated the antifungal capacity of five volatile organic compounds (VOCs) against the two pathogenic strains
We evaluated the antifungal effect of methyl prop-2-enoate and methyl propanoate against supplemented with μM
Summary
Fusarium culmorum and Cochliobolus sativus are known to cause root rot in different cereal varieties, especially wheat and barley. Damage caused by the contamination of sensitive barley cultivars by Fusarium culmorum and Cochliobolus sativus can raise up to 16–33% [1]. Different eco-friendly techniques have been developed with a view to assessing alternative sustainable methods for cereal disease control [2,3,4,5]. In this context, many studies highlight the benefits of non-host crop techniques in managing foot and root rot [2,6,7]
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