Fiche publication
Date publication
juin 2020
Journal
Science advances
Auteurs
Membres identifiés du Cancéropôle Est :
Pr GAQUEREL Emmanuel
Tous les auteurs :
Li D, Halitschke R, Baldwin IT, Gaquerel E
Lien Pubmed
Résumé
Different plant defense theories have provided important theoretical guidance in explaining patterns in plant specialized metabolism, but their critical predictions remain to be tested. Here, we systematically explored the metabolomes of , from single plants to populations, as well as of closely related species, using unbiased tandem mass spectrometry (MS/MS) analyses and processed the abundances of compound spectrum-based MS features within an information theory framework to test critical predictions of optimal defense (OD) and moving target (MT) theories. Information components of plant metabolomes were consistent with the OD theory but contradicted the main prediction of the MT theory for herbivory-induced dynamics of metabolome compositions. From micro- to macroevolutionary scales, jasmonate signaling was confirmed as the master determinant of OD, while ethylene signaling provided fine-tuning for herbivore-specific responses annotated via MS/MS molecular networks.
Référence
Sci Adv. 2020 06;6(24):eaaz0381
