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Inhibitory effects of the carrot metabolites 6-methoxymellein and falcarindiol on development of the fungal leaf blight pathogen Alternaria dauci

Abstract :

The in vitro effects of 6-MM and falcarindiol on the development of Alternaria dauci were analyzed. The results showed that A. dauci was significantly more susceptible to falcarindiol than to 6-MM. Experiments dealing with mixed solutions of 6-MM and falcarindiol indicated additive effects of the metabolites on growth inhibition. Permeabilization of the fungal plasma membrane was observed after falcarindiol treatment. In planta quantification of 6-MM/falcarindiol was performed on inoculated leaves of carrot genotypes. Significantly faster 6-MM production was observed in Bolero (partially resistant to A. dauci) than in Presto (susceptible). The falcarindiol levels were significantly higher in Bolero than in Presto.

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https://hal.archives-ouvertes.fr/hal-01128455
Contributor : Okina Université d'Angers <>
Submitted on : Monday, March 9, 2015 - 5:18:39 PM
Last modification on : Monday, July 20, 2020 - 1:06:04 PM

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Mickaël Lecomte, Romain Berruyer, Latifa Hamama, Cora Boedo, Piétrick Hudhomme, et al.. Inhibitory effects of the carrot metabolites 6-methoxymellein and falcarindiol on development of the fungal leaf blight pathogen Alternaria dauci. Physiological and Molecular Plant Pathology, Elsevier, 2012, 80, pp.58 - 67. ⟨10.1016/j.pmpp.2012.10.002⟩. ⟨hal-01128455⟩

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