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Evaluation of antifungal activity of some plant essential oils against tomato grey mould disease

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Abstract

Ten plant essential oils (PEOs) were used for evaluating the antifungal activity against Botrytis cinerea through the volatile and contact methods. Moreover, six essential oils of the six plants including cinnamon, rosemary, ginger, ajwain, cumin, and garlic at concentration of 25 μL/mL, which showed the higher inhibition of the mycelia growth of the pathogen were selected for further experiments. Contact and volatile phase effects of these six PEOs at the concentrations of 0, 10, 15, 20, 25, and 35 μL/mL were evaluated on mycelia growth and spore germination of the pathogen in vitro. The essential oils of cinnamon, ajwain, cumin, and garlic (concentrations higher than 20 μL/mL), which indicated the highest inhibition of pathogen isolates growth were selected for further studies in the greenhouse. Volatile phase effects of the PEOs were consistently found to be more effective on the fungal growth than the contact phase. The four used PEOs inhibited the growth of pathogen and the development of grey mould on the tomato plants under the greenhouse conditions. However, none of the treatments affected the plants height and fresh and dry weights. This study aims to indicate the PEOs can be considered as an alternative to fungicides for protecting the tomato plants against B. cinerea.

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Correspondence to Leila Ebrahimi.

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The authors declare that they have no known competing financial interests or personal relationships, which could have appeared to influence the work reported in this paper. Moreover, the research does not involve any human participants and/or animals.

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Ebrahimi, L., Jalali, H., Etebarian, H.R. et al. Evaluation of antifungal activity of some plant essential oils against tomato grey mould disease. J Plant Pathol 104, 641–650 (2022). https://doi.org/10.1007/s42161-022-01029-x

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  • DOI: https://doi.org/10.1007/s42161-022-01029-x

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