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Thresholds for persistent leaf photochemical damage predict plant drought resilience in a tropical rainforest

hal.structure.identifierBotanique et Modélisation de l'Architecture des Plantes et des Végétations [UMR AMAP]
dc.contributor.authorFORTUNEL, Claire
hal.structure.identifierEcologie des forêts de Guyane [UMR ECOFOG]
dc.contributor.authorSTAHL, Clément
hal.structure.identifierEcologie des forêts de Guyane [UMR ECOFOG]
dc.contributor.authorCOSTE, Sabrina
hal.structure.identifierEcologie des forêts de Guyane [UMR ECOFOG]
hal.structure.identifierSILVA [SILVA]
dc.contributor.authorZIEGLER, Camille
hal.structure.identifierEcologie des forêts de Guyane [UMR ECOFOG]
hal.structure.identifierDépartement Environnements et Sociétés [Cirad-ES]
dc.contributor.authorDERROIRE, Géraldine
hal.structure.identifierBotanique et Modélisation de l'Architecture des Plantes et des Végétations [UMR AMAP]
hal.structure.identifierEcologie des forêts de Guyane [UMR ECOFOG]
dc.contributor.authorLEVIONNOIS, Sébastien
hal.structure.identifierBotanique et Modélisation de l'Architecture des Plantes et des Végétations [UMR AMAP]
dc.contributor.authorMARÉCHAUX, Isabelle
hal.structure.identifierSILVA [SILVA]
dc.contributor.authorBONAL, Damien
hal.structure.identifierForêts et Sociétés [UPR Forêts et Sociétés]
hal.structure.identifierDépartement Environnements et Sociétés [Cirad-ES]
hal.structure.identifierInstitut National Polytechnique Félix Houphouët-Boigny [Yamoussoukro] [INP-HB]
dc.contributor.authorHÉRAULT, Bruno
hal.structure.identifierUniversity of California [UC]
dc.contributor.authorWAGNER, Fabien
hal.structure.identifierUniversity of California [UC]
dc.contributor.authorSACK, Lawren
hal.structure.identifierEvolution et Diversité Biologique [EDB]
dc.contributor.authorCHAVE, Jérôme
hal.structure.identifierBotanique et Modélisation de l'Architecture des Plantes et des Végétations [UMR AMAP]
dc.contributor.authorHEURET, Patrick
hal.structure.identifierUniversität Ulm - Ulm University [Ulm, Allemagne]
dc.contributor.authorJANSEN, Steven
hal.structure.identifierUniversity of Florida [Gainesville] [UF]
dc.contributor.authorJOHN, Grace
hal.structure.identifierCalifornia State University [Los Angeles] [CAL STATE LA]
dc.contributor.authorSCOFFONI, Christine
hal.structure.identifierBiodiversité, Gènes & Communautés [BioGeCo]
dc.contributor.authorTRUEBA, Santiago
hal.structure.identifierUniversity of California [UC]
dc.contributor.authorBARTLETT, Megan
dc.date.issued2023-07-01
dc.identifier.issn0028-646X
dc.description.abstractEnWater stress can cause declines in plant function that persist after rehydration. Recent work has defined ‘resilience’ traits characterizing leaf resistance to persistent damage from drought, but whether these traits predict resilience in whole-plant function is unknown. It is also unknown whether the coordination between resilience and ‘resistance’ – the ability to maintain function during drought – observed globally occurs within ecosystems. For eight rainforest species, we dehydrated and subsequently rehydrated leaves, and measured water stress thresholds for declines in rehydration capacity and maximum quantum yield of photosystem II (Fv/Fm). We tested correlations with embolism resistance and dry season water potentials (ΨMD), and calculated safety margins for damage (ΨMD – thresholds) and tested correlations with drought resilience in sap flow and growth. Ψ thresholds for persistent declines in Fv/Fm, indicating resilience, were positively correlated with ΨMD and thresholds for leaf vein embolism. Safety margins for persistent declines in Fv/Fm, but not rehydration capacity, were positively correlated with drought resilience in sap flow.Correlations between resistance and resilience suggest that species' differences in performance during drought are perpetuated after drought, potentially accelerating shifts in forest composition. Resilience to photochemical damage emerged as a promising functional trait to characterize whole-plant drought resilience.
dc.description.sponsorshipCEnter of the study of Biodiversity in Amazonia
dc.language.isoen
dc.publisherWiley
dc.rights.urihttp://creativecommons.org/licenses/by/
dc.subject.enDrought
dc.subject.enEmbolism resistance
dc.subject.enHydraulics
dc.subject.enPhotochemistry
dc.subject.enRecovery
dc.subject.enRehydration
dc.subject.enTropical
dc.subject.enDrought
dc.title.enThresholds for persistent leaf photochemical damage predict plant drought resilience in a tropical rainforest
dc.typeArticle de revue
dc.identifier.doi10.1111/nph.18973
dc.subject.halSciences de l'environnement
bordeaux.journalNew Phytologist
bordeaux.page576-591
bordeaux.volume239
bordeaux.issue2
bordeaux.peerReviewedoui
hal.identifierhal-04133784
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-04133784v1
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=New%20Phytologist&rft.date=2023-07-01&rft.volume=239&rft.issue=2&rft.spage=576-591&rft.epage=576-591&rft.eissn=0028-646X&rft.issn=0028-646X&rft.au=FORTUNEL,%20Claire&STAHL,%20Cl%C3%A9ment&COSTE,%20Sabrina&ZIEGLER,%20Camille&DERROIRE,%20G%C3%A9raldine&rft.genre=article


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