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Carbon and phosphorus allocation in annual plants: an optimal functioning approach

hal.structure.identifierLaboratoire des Sciences du Climat et de l'Environnement [Gif-sur-Yvette] [LSCE]
hal.structure.identifierInteractions Sol Plante Atmosphère [UMR ISPA]
dc.contributor.authorKVAKIĆ, Marko
hal.structure.identifierSignal Processing Laboratory
dc.contributor.authorTZAGKARAKIS, George
hal.structure.identifierInteractions Sol Plante Atmosphère [UMR ISPA]
dc.contributor.authorPELLERIN, Sylvain
hal.structure.identifierLaboratoire des Sciences du Climat et de l'Environnement [Gif-sur-Yvette] [LSCE]
hal.structure.identifierICOS-ATC [ICOS-ATC]
dc.contributor.authorCIAIS, Philippe
hal.structure.identifierLaboratoire des Sciences du Climat et de l'Environnement [Gif-sur-Yvette] [LSCE]
dc.contributor.authorGOLL, Daniel
hal.structure.identifierInteractions Sol Plante Atmosphère [UMR ISPA]
dc.contributor.authorMOLLIER, Alain
hal.structure.identifierInteractions Sol Plante Atmosphère [UMR ISPA]
dc.contributor.authorRINGEVAL, Bruno
dc.date.accessioned2024-04-08T12:07:28Z
dc.date.available2024-04-08T12:07:28Z
dc.date.issued2020
dc.identifier.issn1664-462X
dc.identifier.urihttps://oskar-bordeaux.fr/handle/20.500.12278/196467
dc.description.abstractEnPhosphorus (P) is the second most important nutrient after nitrogen (N) and can greatly diminish plant productivity if P supply is not adequate. Plants respond to soil P availability by adjusting root biomass to maintain uptake and productivity due to P use. In spite of our vast knowledge on P effects on plant growth, how to functionally model enhanced root biomass allocation in low P environments is not fully explored. We develop a dynamic plant model based on the principle of optimal carbon (C) and P allocation to investigate growth and functional response to contrasting levels of soil P availability. By describing plant growth as a balance of growth and respiration processes, we optimize C and P allocation in order to maximize leaf productivity and drive plant response. We compare our model to a field trial and a set of hydroponic experiments which describe plant response at varying P availabilities. The model is able to reproduce long-term plant functional response to different P levels like change in root-shoot ratio (RSR), total biomass and organ P concentration. But it is not capable of fully describing the time evolution of organ P uptake and cycling within the plant. Most notable is the underestimation of organ P uptake during the vegetative growth stage which is due to the model's leaf productivity formalism. In spite of the model's parsimonious nature, which optimizes for and predicts whole plant response through leaf productivity alone, the optimal growth hypothesis can provide a reasonable framework for modelling plant response to environmental change that can be used in more physically driven vegetation models.
dc.description.sponsorshipCLAND : Changement climatique et usage des terres - ANR-16-CONV-0003
dc.language.isoen
dc.publisherFrontiers
dc.rights.urihttp://creativecommons.org/licenses/by/
dc.title.enCarbon and phosphorus allocation in annual plants: an optimal functioning approach
dc.typeArticle de revue
dc.identifier.doi10.3389/fpls.2020.00149
dc.subject.halSciences du Vivant [q-bio]
dc.description.sponsorshipEuropeEffects of phosphorus limitations on Life, Earth system and Society
bordeaux.journalFrontiers in Plant Science
bordeaux.page1-14
bordeaux.volume11
bordeaux.hal.laboratoriesInteractions Soil Plant Atmosphere (ISPA) - UMR 1391*
bordeaux.institutionBordeaux Sciences Agro
bordeaux.institutionINRAE
bordeaux.peerReviewedoui
hal.identifierhal-02493531
hal.version1
hal.popularnon
hal.audienceNon spécifiée
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-02493531v1
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Frontiers%20in%20Plant%20Science&rft.date=2020&rft.volume=11&rft.spage=1-14&rft.epage=1-14&rft.eissn=1664-462X&rft.issn=1664-462X&rft.au=KVAKI%C4%86,%20Marko&TZAGKARAKIS,%20George&PELLERIN,%20Sylvain&CIAIS,%20Philippe&GOLL,%20Daniel&rft.genre=article


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