Link between carrot leaf secondary metabolites and resistance to Alternaria dauci

Fichier pdf chargé le 25/10/2018 à 09:56:37
Accès libre
(version auteur)
TitreLink between carrot leaf secondary metabolites and resistance to Alternaria dauci
Type de publicationArticle de revue
AuteurKoutouan, Claude , Le Clerc, Valérie , Baltenweck, Raymonde , Claudel, Patricia , Halter, David , Hugueney, Philippe , Hamama, Latifa , Suel, Anita , Huet, Sébastien , Bouvet Merlet, Marie-Hélène , Briard, Mathilde
EditeurNature Research (part of Springer Nature)
TypeArticle scientifique dans une revue à comité de lecture
Date13 Sept. 2018
Titre de la revueScientific Reports
Résumé en anglais

Alternaria Leaf Blight (ALB), caused by the fungus Alternaria dauci, is the most damaging foliar disease affecting carrots (Daucus carota). In order to identify compounds potentially linked to the resistance to A. dauci, we have used a combination of targeted and non-targeted metabolomics to compare the leaf metabolome of four carrot genotypes with different resistance levels. Targeted analyses were focused on terpene volatiles, while total leaf methanolic extracts were subjected to non-targeted analyses using liquid chromatography couple to high-resolution mass spectrometry. Differences in the accumulation of major metabolites were highlighted among genotypes and some of these metabolites were identified as potentially involved in resistance or susceptibility. A bulk segregant analysis on F3 progenies obtained from a cross between one of the resistant genotypes and a susceptible one, confirmed or refuted the hypothesis that the metabolites differentially accumulated by these two parents could be linked to resistance.

URL de la notice
Lien vers le document

Titre abrégéSci Rep