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resumen

Resumen
Common features in the time-course of expansion of leaves which considerably differed in final area, due to phytomer position, growing conditions and geno type, were identified. Leaf development consisted of two phases of exponential growth, followed by a third phase of continuous decrease of the relative expansion rate. The rate and the duration of the first exponential phase were common to all phytomers, growing conditions and genotypes. Leaves [ver mas...]
dc.contributor.authorDosio, Guillermo
dc.contributor.authorRey, Hervé
dc.contributor.authorLecoeur, Jeremie
dc.contributor.authorIzquierdo, Natalia
dc.contributor.authorAguirrezabal, Luis
dc.contributor.authorTardieau, Fracois
dc.contributor.authorTurc, Oliver
dc.date.accessioned2025-03-12T17:29:06Z
dc.date.available2025-03-12T17:29:06Z
dc.date.issued2003-11
dc.identifier.issn1460-2431
dc.identifier.otherhttps://doi.org/10.1093/jxb/erg279
dc.identifier.urihttp://hdl.handle.net/20.500.12123/21639
dc.identifier.urihttps://academic.oup.com/jxb/article/54/392/2541/621963
dc.description.abstractCommon features in the time-course of expansion of leaves which considerably differed in final area, due to phytomer position, growing conditions and geno type, were identified. Leaf development consisted of two phases of exponential growth, followed by a third phase of continuous decrease of the relative expansion rate. The rate and the duration of the first exponential phase were common to all phytomers, growing conditions and genotypes. Leaves differed in the rate and the duration of the second exponen tial phase. The decrease of the relative expansion rate during the third phase depended on neither gen otype nor growing conditions. It was phytomer dependent and was deduced from the rate of the sec ond phase via a parameter common to all cases stud ied. Differences in ®nal leaf area among growing conditions were linked to different expansion rates during the second exponential phase. The duration of the phases at any given phytomer position was the same for the two hybrids in different growing conditions. The dates of developmental events (initi ation, end of the two exponential phases, full expan sion), and the rate of the second exponential phase, were related to phytomer position, defining a strict pattern of leaf development at the whole plant level. Using this framework simplified the analysis of the response of leaf expansion to genotype and environ ment.eng
dc.formatapplication/pdfes_AR
dc.language.isoenges_AR
dc.publisherOxford University Presseng
dc.rightsinfo:eu-repo/semantics/openAccesses_AR
dc.rights.urihttp://creativecommons.org/licenses/by-nc-sa/4.0/es_AR
dc.sourceJournal of Experimental Botany 54 (392): 2541 -2552 ( November 2003)eng
dc.subjectHelianthus annuuses_AR
dc.subjectPlant Growtheng
dc.subjectCrecimiento de Plantaes_AR
dc.subjectSunflowerseng
dc.subjectGirasoles_AR
dc.subject.otherCrecimiento exponenciales_AR
dc.titleA whole plant analysis of the dynamics of expansion of individual leaves of two sunflower hybridseng
dc.typeinfo:ar-repo/semantics/artículoes_AR
dc.typeinfo:eu-repo/semantics/articlees_AR
dc.typeinfo:eu-repo/semantics/publishedVersiones_AR
dc.rights.licenseCreative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)es_AR
dc.description.origenEEA Balcarcees_AR
dc.description.filFil: Dosio, Guillermo. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Balcarce; Argentinaes_AR
dc.description.filFil: Dosio, Guillermo. Universidad Nacional de Mar del Plata. Facultad de Ciencias Agrarias. Unidad Integrada Balcarce; Argentinaes_AR
dc.description.filFil: Dosio, Guillermo. Institut National de la Recherche Agronomique - Agro Montpellier. Laboratoire d'Ecophysiologie des Plantes sous Stress Environnementaux (LEPSE); Franciaes_AR
dc.description.filFil: Rey, Hervé. Centre de Cooperation Internationale en Recherche Agronomique pour le Developpement (CIRAD). Unite Mixte de Recherche Botanique et Bioinformatique de l'Architecture des Plantes (AMAP); Franciaes_AR
dc.description.filFil: Lecoeur, Jeremie. Institut National de la Recherche Agronomique - Agro Montpellier. Laboratoire d'Ecophysiologie des Plantes sous Stress Environnementaux (LEPSE); Franciaes_AR
dc.description.filFil: Izquierdo, Natalia. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Balcarce; Argentinaes_AR
dc.description.filFil: Izquierdo, Natalia. Universidad Nacional de Mar del Plata. Facultad de Ciencias Agrarias. Unidad Integrada Balcarce; Argentinaes_AR
dc.description.filFil: Aguirrezabal, Luis. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Balcarce; Argentinaes_AR
dc.description.filFil: Aguirrezabal, Luis. Universidad Nacional de Mar del Plata. Facultad de Ciencias Agrarias. Unidad Integrada Balcarce; Argentinaes_AR
dc.description.filFil: Tardieau, Fracois. Institut National de la Recherche Agronomique - Agro Montpellier. Laboratoire d'Ecophysiologie des Plantes sous Stress Environnementaux (LEPSE); Franciaes_AR
dc.description.filFil: Turc, Oliver. Institut National de la Recherche Agronomique - Agro Montpellier. Laboratoire d'Ecophysiologie des Plantes sous Stress Environnementaux (LEPSE); Franciaes_AR
dc.subtypecientificoes_AR


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