FANDINO, Ana Cecilia Aliaga; VIGNERON, Nicolas; ALFONSO, Esteban; BURDET, Jean-Philippe; REMOLIF, Eric; CATTANI, Amanda Malvessi; SMIT-SADKI, Tara; CLUZET, Stéphanie; VALLS-FONAYET, Josep; PÉTRIACQ, Pierre; RIENTH, Markus

doi:10.1186/s12870-024-05875-y

Langue

Article de revue

Ce document a été publié dans

BMC Plant Biology. 2024-12-18, vol. 24, n° 1, p. 1180

Résumé en anglais

Background Priming plants with natural products is extensively studied in the agricultural field to reduce the use of synthetic and copper-based pesticides. Previous studies have shown that Oregano essential oil vapour (OEOV) is an effective priming agent against downy mildew (DM) in grapevine (Vitis vinifera L. cv. Chasselas), activating different transcriptomic regulated defence mechanisms. Results In the present study, we complement transcriptomic data with metabolomic insights, confirming some previous regulating patterns and highlighting new mechanisms underlying OEOV-induced resistance. A significant modulation of the phenylpropanoid pathway was noted. The data also confirmed the induction of an oxidative stress response indicated by an up-regulation of reactive oxygen species (ROS)-related genes and a congruent depletion of putative L-glutathione. Interestingly, OEOV promoted the accumulation of organic metabolites such as terpenes and other potential phytoalexins, which could potentially contribute to grapevine innate immune response to Plasmopara viticola. Conclusion Overall, this study uncovered a diverse influence of OEOV on V. vinifera defence mechanisms against DM, enhancing our comprehension of the mode of action of essential oils. This insight offers various prospects for crafting innovative biocontrol products, fostering a more dynamic and sustainable approach to agriculture.< Réduire

URI

https://oskar-bordeaux.fr/handle/20.500.12278/206234

DOI

http://dx.doi.org/10.1186/s12870-024-05875-y

Unités de recherche

Oenologie - UMR 1366

Voir/Ouvrir

Métadonnées

Partager cette publication !

Licence d’utilisation du document

Priming grapevines with oregano essential oil vapour results in a metabolomic shift eliciting resistance against downy mildew

Langue

Ce document a été publié dans

Résumé en anglais

URI

DOI

Unités de recherche