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
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/239464
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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 Técnicas2025-09-29T10:17:00Zoai: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:34982025-09-29 10:17:00.625CONICET 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 https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ |
eu_rights_str_mv |
embargoedAccess |
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https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ |
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application/pdf application/pdf |
dc.publisher.none.fl_str_mv |
Springer |
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Springer |
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Consejo Nacional de Investigaciones Científicas y Técnicas |
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CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas |
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dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar |
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13.070432 |