Photoassimilate availability drives sunflower sugar storage capacity through plastic changes in organ size

Autores
García, Leonela Analía; Martínez Noël, Giselle María Astrid; Tognetti, Jorge Alberto; Dosio, Guillermo Aníbal Adrián
Año de publicación
2024
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Sunflower capacity to synthesize and accumulate soluble carbohydrates that willultimately contribute to grain filling, either via actual photosynthesis or previously storedreserves, has been largely neglected despite its relevance regarding crop yield. Thepresent work is aimed at studying the effect of photoassimilate availability on thedynamics of production and distribution of soluble carbohydrates in the plant duringvegetative and reproductive phases. Plant photoassimilate availability was modifiedfrom production crop level in two hybrids during two field experiments by shading orthinning plants, which resulted in a range of intercepted radiation between 20 and 300MJ per plant, and also by removal of the main sink, the capitulum. Plants under higherlight availability developed larger leaves and accumulated much more biomass thanshaded ones. In general, plant sugar storage increased up to flowering, and washighest in the developing capitulum and upper stem internodes. Increasing lightavailability led to a strong growth promotion that was especially remarkable in thecapitulum and stem upper internodes, which precluded an increase in sugarconcentration in these parts. Capitulum removal led to sugar remobilization to the plantbase, resulting in a strong growth promotion of roots, basal stem internodes and evenin leaves from the lower strata, showing an extremely high plasticity of all sunflowerorgans in response to photoassimilates. These results also suggest that sugars per semay drive plastic changes of organ size ultimately conditioning plant capacity to storesugars and crop yield.
Fil: García, Leonela Analía. Comisión de Investigaciones Científicas de la Provincia de Buenos Aires. Instituto de Desarrollo Agroalimentario y Agroenergético Sostenible - Universidad Nacional de Mar del Plata. Facultad de Ciencias Agrarias. Instituto de Desarrollo Agroalimentario y Agroenergético Sostenible; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Martínez Noël, Giselle María Astrid. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones en Biodiversidad y Biotecnología; Argentina
Fil: Tognetti, Jorge Alberto. Comisión de Investigaciones Científicas de la Provincia de Buenos Aires. Instituto de Desarrollo Agroalimentario y Agroenergético Sostenible - Universidad Nacional de Mar del Plata. Facultad de Ciencias Agrarias. Instituto de Desarrollo Agroalimentario y Agroenergético Sostenible; Argentina
Fil: Dosio, Guillermo Aníbal Adrián. Comisión de Investigaciones Científicas de la Provincia de Buenos Aires. Instituto de Desarrollo Agroalimentario y Agroenergético Sostenible - Universidad Nacional de Mar del Plata. Facultad de Ciencias Agrarias. Instituto de Desarrollo Agroalimentario y Agroenergético Sostenible; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata; Argentina
Materia
capitulum
carbohydrate reserves
Helianthus annuus
high irradiance
organ plasticity
sucrose
Nivel de accesibilidad
acceso embargado
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/239464
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/239464
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Photoassimilate availability drives sunflower sugar storage capacity through plastic changes in organ sizeGarcía, Leonela AnalíaMartínez Noël, Giselle María AstridTognetti, Jorge AlbertoDosio, Guillermo Aníbal Adriáncapitulumcarbohydrate reservesHelianthus annuushigh irradianceorgan plasticitysucrosehttps://purl.org/becyt/ford/4.1https://purl.org/becyt/ford/4Sunflower capacity to synthesize and accumulate soluble carbohydrates that willultimately contribute to grain filling, either via actual photosynthesis or previously storedreserves, has been largely neglected despite its relevance regarding crop yield. Thepresent work is aimed at studying the effect of photoassimilate availability on thedynamics of production and distribution of soluble carbohydrates in the plant duringvegetative and reproductive phases. Plant photoassimilate availability was modifiedfrom production crop level in two hybrids during two field experiments by shading orthinning plants, which resulted in a range of intercepted radiation between 20 and 300MJ per plant, and also by removal of the main sink, the capitulum. Plants under higherlight availability developed larger leaves and accumulated much more biomass thanshaded ones. In general, plant sugar storage increased up to flowering, and washighest in the developing capitulum and upper stem internodes. Increasing lightavailability led to a strong growth promotion that was especially remarkable in thecapitulum and stem upper internodes, which precluded an increase in sugarconcentration in these parts. Capitulum removal led to sugar remobilization to the plantbase, resulting in a strong growth promotion of roots, basal stem internodes and evenin leaves from the lower strata, showing an extremely high plasticity of all sunflowerorgans in response to photoassimilates. These results also suggest that sugars per semay drive plastic changes of organ size ultimately conditioning plant capacity to storesugars and crop yield.Fil: García, Leonela Analía. Comisión de Investigaciones Científicas de la Provincia de Buenos Aires. Instituto de Desarrollo Agroalimentario y Agroenergético Sostenible - Universidad Nacional de Mar del Plata. Facultad de Ciencias Agrarias. Instituto de Desarrollo Agroalimentario y Agroenergético Sostenible; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Martínez Noël, Giselle María Astrid. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones en Biodiversidad y Biotecnología; ArgentinaFil: Tognetti, Jorge Alberto. Comisión de Investigaciones Científicas de la Provincia de Buenos Aires. Instituto de Desarrollo Agroalimentario y Agroenergético Sostenible - Universidad Nacional de Mar del Plata. Facultad de Ciencias Agrarias. Instituto de Desarrollo Agroalimentario y Agroenergético Sostenible; ArgentinaFil: Dosio, Guillermo Aníbal Adrián. Comisión de Investigaciones Científicas de la Provincia de Buenos Aires. Instituto de Desarrollo Agroalimentario y Agroenergético Sostenible - Universidad Nacional de Mar del Plata. Facultad de Ciencias Agrarias. Instituto de Desarrollo Agroalimentario y Agroenergético Sostenible; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata; ArgentinaSpringer2024-06info:eu-repo/date/embargoEnd/2025-07-10info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/239464García, Leonela Analía; Martínez Noël, Giselle María Astrid; Tognetti, Jorge Alberto; Dosio, Guillermo Aníbal Adrián; Photoassimilate availability drives sunflower sugar storage capacity through plastic changes in organ size; Springer; Journal of Plant Growth Regulation; 2024; 6-2024; 1-520721-7595CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://link.springer.com/article/10.1007/s00344-024-11397-6info:eu-repo/semantics/altIdentifier/doi/10.1007/s00344-024-11397-6info:eu-repo/semantics/embargoedAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-22T11:47:09Zoai:ri.conicet.gov.ar:11336/239464instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-10-22 11:47:09.862CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Photoassimilate availability drives sunflower sugar storage capacity through plastic changes in organ size
title Photoassimilate availability drives sunflower sugar storage capacity through plastic changes in organ size
spellingShingle Photoassimilate availability drives sunflower sugar storage capacity through plastic changes in organ size
García, Leonela Analía
capitulum
carbohydrate reserves
Helianthus annuus
high irradiance
organ plasticity
sucrose
title_short Photoassimilate availability drives sunflower sugar storage capacity through plastic changes in organ size
title_full Photoassimilate availability drives sunflower sugar storage capacity through plastic changes in organ size
title_fullStr Photoassimilate availability drives sunflower sugar storage capacity through plastic changes in organ size
title_full_unstemmed Photoassimilate availability drives sunflower sugar storage capacity through plastic changes in organ size
title_sort Photoassimilate availability drives sunflower sugar storage capacity through plastic changes in organ size
dc.creator.none.fl_str_mv García, Leonela Analía
Martínez Noël, Giselle María Astrid
Tognetti, Jorge Alberto
Dosio, Guillermo Aníbal Adrián
author García, Leonela Analía
author_facet García, Leonela Analía
Martínez Noël, Giselle María Astrid
Tognetti, Jorge Alberto
Dosio, Guillermo Aníbal Adrián
author_role author
author2 Martínez Noël, Giselle María Astrid
Tognetti, Jorge Alberto
Dosio, Guillermo Aníbal Adrián
author2_role author
author
author
dc.subject.none.fl_str_mv capitulum
carbohydrate reserves
Helianthus annuus
high irradiance
organ plasticity
sucrose
topic capitulum
carbohydrate reserves
Helianthus annuus
high irradiance
organ plasticity
sucrose
purl_subject.fl_str_mv https://purl.org/becyt/ford/4.1
https://purl.org/becyt/ford/4
dc.description.none.fl_txt_mv Sunflower capacity to synthesize and accumulate soluble carbohydrates that willultimately contribute to grain filling, either via actual photosynthesis or previously storedreserves, has been largely neglected despite its relevance regarding crop yield. Thepresent work is aimed at studying the effect of photoassimilate availability on thedynamics of production and distribution of soluble carbohydrates in the plant duringvegetative and reproductive phases. Plant photoassimilate availability was modifiedfrom production crop level in two hybrids during two field experiments by shading orthinning plants, which resulted in a range of intercepted radiation between 20 and 300MJ per plant, and also by removal of the main sink, the capitulum. Plants under higherlight availability developed larger leaves and accumulated much more biomass thanshaded ones. In general, plant sugar storage increased up to flowering, and washighest in the developing capitulum and upper stem internodes. Increasing lightavailability led to a strong growth promotion that was especially remarkable in thecapitulum and stem upper internodes, which precluded an increase in sugarconcentration in these parts. Capitulum removal led to sugar remobilization to the plantbase, resulting in a strong growth promotion of roots, basal stem internodes and evenin leaves from the lower strata, showing an extremely high plasticity of all sunflowerorgans in response to photoassimilates. These results also suggest that sugars per semay drive plastic changes of organ size ultimately conditioning plant capacity to storesugars and crop yield.
Fil: García, Leonela Analía. Comisión de Investigaciones Científicas de la Provincia de Buenos Aires. Instituto de Desarrollo Agroalimentario y Agroenergético Sostenible - Universidad Nacional de Mar del Plata. Facultad de Ciencias Agrarias. Instituto de Desarrollo Agroalimentario y Agroenergético Sostenible; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Martínez Noël, Giselle María Astrid. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones en Biodiversidad y Biotecnología; Argentina
Fil: Tognetti, Jorge Alberto. Comisión de Investigaciones Científicas de la Provincia de Buenos Aires. Instituto de Desarrollo Agroalimentario y Agroenergético Sostenible - Universidad Nacional de Mar del Plata. Facultad de Ciencias Agrarias. Instituto de Desarrollo Agroalimentario y Agroenergético Sostenible; Argentina
Fil: Dosio, Guillermo Aníbal Adrián. Comisión de Investigaciones Científicas de la Provincia de Buenos Aires. Instituto de Desarrollo Agroalimentario y Agroenergético Sostenible - Universidad Nacional de Mar del Plata. Facultad de Ciencias Agrarias. Instituto de Desarrollo Agroalimentario y Agroenergético Sostenible; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata; Argentina
description Sunflower capacity to synthesize and accumulate soluble carbohydrates that willultimately contribute to grain filling, either via actual photosynthesis or previously storedreserves, has been largely neglected despite its relevance regarding crop yield. Thepresent work is aimed at studying the effect of photoassimilate availability on thedynamics of production and distribution of soluble carbohydrates in the plant duringvegetative and reproductive phases. Plant photoassimilate availability was modifiedfrom production crop level in two hybrids during two field experiments by shading orthinning plants, which resulted in a range of intercepted radiation between 20 and 300MJ per plant, and also by removal of the main sink, the capitulum. Plants under higherlight availability developed larger leaves and accumulated much more biomass thanshaded ones. In general, plant sugar storage increased up to flowering, and washighest in the developing capitulum and upper stem internodes. Increasing lightavailability led to a strong growth promotion that was especially remarkable in thecapitulum and stem upper internodes, which precluded an increase in sugarconcentration in these parts. Capitulum removal led to sugar remobilization to the plantbase, resulting in a strong growth promotion of roots, basal stem internodes and evenin leaves from the lower strata, showing an extremely high plasticity of all sunflowerorgans in response to photoassimilates. These results also suggest that sugars per semay drive plastic changes of organ size ultimately conditioning plant capacity to storesugars and crop yield.
publishDate 2024
dc.date.none.fl_str_mv 2024-06
info:eu-repo/date/embargoEnd/2025-07-10
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/239464
García, Leonela Analía; Martínez Noël, Giselle María Astrid; Tognetti, Jorge Alberto; Dosio, Guillermo Aníbal Adrián; Photoassimilate availability drives sunflower sugar storage capacity through plastic changes in organ size; Springer; Journal of Plant Growth Regulation; 2024; 6-2024; 1-52
0721-7595
CONICET Digital
CONICET
url http://hdl.handle.net/11336/239464
identifier_str_mv García, Leonela Analía; Martínez Noël, Giselle María Astrid; Tognetti, Jorge Alberto; Dosio, Guillermo Aníbal Adrián; Photoassimilate availability drives sunflower sugar storage capacity through plastic changes in organ size; Springer; Journal of Plant Growth Regulation; 2024; 6-2024; 1-52
0721-7595
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/https://link.springer.com/article/10.1007/s00344-024-11397-6
info:eu-repo/semantics/altIdentifier/doi/10.1007/s00344-024-11397-6
dc.rights.none.fl_str_mv info:eu-repo/semantics/embargoedAccess
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eu_rights_str_mv embargoedAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Springer
publisher.none.fl_str_mv Springer
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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