Afficher la notice abrégée

Phytophthora alni Infection Reinforces the Defense Reactions in Alnus glutinosa - Frankia Roots to the Detriment of Nodules

hal.structure.identifierLaboratoire d'Ecologie Microbienne - UMR 5557 [LEM]
dc.contributor.authorVINCENT, Mathilde
hal.structure.identifierLaboratoire d'Ecologie Microbienne - UMR 5557 [LEM]
dc.contributor.authorBOUBAKRI, Hasna
hal.structure.identifierLaboratoire d'Ecologie Microbienne - UMR 5557 [LEM]
dc.contributor.authorFOURNIER, Pascale
hal.structure.identifierBiologie Fonctionnelle, Insectes et Interactions [BF2I]
dc.contributor.authorPARISOT, Nicolas
hal.structure.identifierUniversité de Bordeaux [UB]
hal.structure.identifierPlateforme Bordeaux Metabolome
hal.structure.identifierBiologie du fruit et pathologie [BFP]
dc.contributor.authorPÉTRIACQ, Pierre
hal.structure.identifierPlateforme Bordeaux Metabolome
hal.structure.identifierBiologie du fruit et pathologie [BFP]
dc.contributor.authorCASSAN, Cédric
hal.structure.identifierPlateforme Bordeaux Metabolome
dc.contributor.authorFLANDIN, Amélie
hal.structure.identifierMédicaments et Technologies pour la Santé [MTS]
hal.structure.identifierService de Pharmacologie et Immunoanalyse [SPI]
hal.structure.identifierLaboratoire Innovations technologiques pour la Détection et le Diagnostic [LI2D]
dc.contributor.authorMIOTELLO, Guylaine
hal.structure.identifierMédicaments et Technologies pour la Santé [MTS]
hal.structure.identifierService de Pharmacologie et Immunoanalyse [SPI]
hal.structure.identifierLaboratoire Innovations technologiques pour la Détection et le Diagnostic [LI2D]
dc.contributor.authorARMENGAUD, Jean
hal.structure.identifierUniversité Claude Bernard Lyon 1 [UCBL]
dc.contributor.authorHAY, Anne-Emmanuelle
hal.structure.identifierUniversité de La Réunion [UR]
dc.contributor.authorHERRERA-BELAROUSSI, Aude
dc.date.issued2025-01-16
dc.identifier.issn0894-0282
dc.description.abstractEnAlnus glutinosa, able to establish symbiosis with mutualistic bacteria of the genus Frankia, is one of the main species in European riparian environments, where it performs numerous biological and socio-economic functions. However, riparian ecosystems face a growing threat from Phytophthora alni, a highly aggressive waterborne pathogen causing severe dieback in A. glutinosa. To date, the tripartite interaction between the host plant, the symbiont Frankia and the pathogen remains unexplored but is critical for understanding how pathogen-induced stress influences the nodule molecular machinery and so on the host-symbiont metabolism. In the present study, we aimed to explore for the first time how P. alni affects the overall molecular processes of Alnus glutinosa – Frankia nodules, with a special focus on unraveling the spatial expression of defense mechanisms within these tissues. We conducted a laboratory experiment based on P. alni infection of young A. glutinosa seedlings nodulated with Frankia alni ACN14a, non-infected or infected with the pathogen P. alni. Multi-omics analyses were carried out on nodules (N) and associated roots (AR) of the same plant in order to underline the impact on the nodule molecular processes (i.e. N/AR markers) when the host plant is infected compared to non-infected plants. Our results revealed that P. alni infection modified the molecular nodule processes and induced reprograming of defense-related markers by a shift in associated roots to the detriment of nodules. These findings suggest that A. glutinosa reinforces locally its immune responses in roots but moderates this activation in nodule to preserve its Frankia symbiont.
dc.language.isoen
dc.publisherAmerican Phytopathological Society
dc.title.enPhytophthora alni Infection Reinforces the Defense Reactions in Alnus glutinosa - Frankia Roots to the Detriment of Nodules
dc.typeArticle de revue
dc.identifier.doi10.1094/MPMI-12-24-0160-R
dc.subject.halSciences du Vivant [q-bio]/Biologie végétale
bordeaux.journalMolecular Plant-Microbe Interactions
bordeaux.peerReviewedoui
hal.identifierhal-04935102
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-04935102v1
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Molecular%20Plant-Microbe%20Interactions&rft.date=2025-01-16&rft.eissn=0894-0282&rft.issn=0894-0282&rft.au=VINCENT,%20Mathilde&BOUBAKRI,%20Hasna&FOURNIER,%20Pascale&PARISOT,%20Nicolas&P%C3%89TRIACQ,%20Pierre&rft.genre=article


Fichier(s) constituant ce document

FichiersTailleFormatVue

Il n'y a pas de fichiers associés à ce document.

Ce document figure dans la(les) collection(s) suivante(s)

Afficher la notice abrégée