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A dynamic optimality principle for water use strategies explains isohydric to anisohydric plant responses to drought

hal.structure.identifierNicholas School of the Environment
dc.contributor.authorMRAD, Assaad
dc.contributor.authorSEVANTO, Sanna
hal.structure.identifierInteractions Sol Plante Atmosphère [UMR ISPA]
hal.structure.identifierNicholas School of the Environment
dc.contributor.authorDOMEC, Jean-Christophe
hal.structure.identifierNicholas School of the Environment
dc.contributor.authorLIU, Yanlan
hal.structure.identifierNicholas School of the Environment
dc.contributor.authorNAKAD, Mazen
hal.structure.identifierNicholas School of the Environment
hal.structure.identifierDepartment of Civil and Environmental Engineering
dc.contributor.authorKATUL, Gabriel
dc.date.accessioned2024-04-08T12:03:38Z
dc.date.available2024-04-08T12:03:38Z
dc.date.issued2019
dc.identifier.urihttps://oskar-bordeaux.fr/handle/20.500.12278/196278
dc.description.abstractEnOptimality principles that underlie models of stomatal kinetics require identifying and formulating the gain and the costs involved in opening stomata. While the gain has been linked to larger carbon acquisition, there is still a debate as to the costs that limit stomatal opening. This work presents an Euler-Lagrange framework that accommodates water use strategy and various costs through the formulation of constraints. The reduction in plant hydraulic conductance due to cavitation is added as a new constraint above and beyond the soil hydrological balance and is analyzed for three different types of whole-plant vulnerability curves. Model results show that differences in vulnerability curves alone lead to relatively iso- and aniso-hydric stomatal behavior. Moreover, this framework explains how the presence of competition (biotic or abiotic) for water alters stomatal response to declining soil water content. This contribution corroborates previous research that predicts that a plant's environment (e.g., competition, soil processes) significantly affects its response to drought and supplies the required mathematical machinery to represent this complexity. The method adopted here disentangles cause and effect of the opening and closure of stomata and complements recent mechanistic models of stomatal response to drought.
dc.language.isoen
dc.publisherFrontiers Media
dc.title.enA dynamic optimality principle for water use strategies explains isohydric to anisohydric plant responses to drought
dc.typeArticle de revue
dc.identifier.doi10.3389/ffgc.2019.00049
dc.subject.halSciences du Vivant [q-bio]
dc.subject.halSciences de l'environnement
bordeaux.journalFrontiers in Forests and Global Change
bordeaux.page1-19
bordeaux.volume2
bordeaux.hal.laboratoriesInteractions Soil Plant Atmosphere (ISPA) - UMR 1391*
bordeaux.institutionBordeaux Sciences Agro
bordeaux.institutionINRAE
bordeaux.peerReviewedoui
hal.identifierhal-02629105
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-02629105v1
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Frontiers%20in%20Forests%20and%20Global%20Change&rft.date=2019&rft.volume=2&rft.spage=1-19&rft.epage=1-19&rft.au=MRAD,%20Assaad&SEVANTO,%20Sanna&DOMEC,%20Jean-Christophe&LIU,%20Yanlan&NAKAD,%20Mazen&rft.genre=article


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