Patterns of physiological parameters and nitrogen partitioning in flag leaf explain differential grain protein content in rice

Autores
Puig, María Lucrecia; RodríguezAndrés Alberto; Vidal, Alfonso Andrés; Bezus, Rodolfo; Maiale, Santiago Javier
Año de publicación
2021
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The grain protein content (GPC) in rice is low, and more efforts with agronomic and molecular approaches were performed to increase them. However, the rice research focusing on the plant physiological behaviour that modulates the phenomenon of grain protein filling is very scarce. This work contains physiological parameters related to photosynthetic activity in the flag leaf in the grain filling period and N partitioning assays of high (Nutriar) and traditional (Camba) GPC cultivars. Results indicated a higher photosynthetic capacity, a better capacity to provide CO2 to the chloroplast and a healthier PSII structure in Camba relative to Nutriar. Chlorophyll fluorescence parameters decreased more steeply over time in the high protein variety, and a strong negative correlation was observed between GPC and PSII structure parameters. N content in the flag leaf at anthesis showed lower values and higher remobilisation during the grain filling period in Nutriar compared to Camba. The results of this work suggested that the inactivation of some PSII structures in higher GPC cultivars is associated with N remobilisation and would contribute to an increase in the free N available to be translocated to the grain.
Facultad de Ciencias Agrarias y Forestales
Materia
Ciencias Agrarias
Rice
Grain protein content
Flag leaf
Gas exchange
Thermography images
Chlorophyll fluorescence
Nivel de accesibilidad
acceso abierto
Condiciones de uso
http://creativecommons.org/licenses/by-nc-sa/4.0/
Repositorio
SEDICI (UNLP)
Institución
Universidad Nacional de La Plata
OAI Identificador
oai:sedici.unlp.edu.ar:10915/170107

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network_name_str SEDICI (UNLP)
spelling Patterns of physiological parameters and nitrogen partitioning in flag leaf explain differential grain protein content in ricePuig, María LucreciaRodríguezAndrés AlbertoVidal, Alfonso AndrésBezus, RodolfoMaiale, Santiago JavierCiencias AgrariasRiceGrain protein contentFlag leafGas exchangeThermography imagesChlorophyll fluorescenceThe grain protein content (GPC) in rice is low, and more efforts with agronomic and molecular approaches were performed to increase them. However, the rice research focusing on the plant physiological behaviour that modulates the phenomenon of grain protein filling is very scarce. This work contains physiological parameters related to photosynthetic activity in the flag leaf in the grain filling period and N partitioning assays of high (Nutriar) and traditional (Camba) GPC cultivars. Results indicated a higher photosynthetic capacity, a better capacity to provide CO2 to the chloroplast and a healthier PSII structure in Camba relative to Nutriar. Chlorophyll fluorescence parameters decreased more steeply over time in the high protein variety, and a strong negative correlation was observed between GPC and PSII structure parameters. N content in the flag leaf at anthesis showed lower values and higher remobilisation during the grain filling period in Nutriar compared to Camba. The results of this work suggested that the inactivation of some PSII structures in higher GPC cultivars is associated with N remobilisation and would contribute to an increase in the free N available to be translocated to the grain.Facultad de Ciencias Agrarias y Forestales2021info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdf457–464http://sedici.unlp.edu.ar/handle/10915/170107enginfo:eu-repo/semantics/altIdentifier/issn/ISSN: 1873-2690info:eu-repo/semantics/altIdentifier/doi/10.1016/j.plaphy.2021.10.034info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by-nc-sa/4.0/Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)reponame:SEDICI (UNLP)instname:Universidad Nacional de La Platainstacron:UNLP2025-09-29T11:45:36Zoai:sedici.unlp.edu.ar:10915/170107Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-09-29 11:45:37.239SEDICI (UNLP) - Universidad Nacional de La Platafalse
dc.title.none.fl_str_mv Patterns of physiological parameters and nitrogen partitioning in flag leaf explain differential grain protein content in rice
title Patterns of physiological parameters and nitrogen partitioning in flag leaf explain differential grain protein content in rice
spellingShingle Patterns of physiological parameters and nitrogen partitioning in flag leaf explain differential grain protein content in rice
Puig, María Lucrecia
Ciencias Agrarias
Rice
Grain protein content
Flag leaf
Gas exchange
Thermography images
Chlorophyll fluorescence
title_short Patterns of physiological parameters and nitrogen partitioning in flag leaf explain differential grain protein content in rice
title_full Patterns of physiological parameters and nitrogen partitioning in flag leaf explain differential grain protein content in rice
title_fullStr Patterns of physiological parameters and nitrogen partitioning in flag leaf explain differential grain protein content in rice
title_full_unstemmed Patterns of physiological parameters and nitrogen partitioning in flag leaf explain differential grain protein content in rice
title_sort Patterns of physiological parameters and nitrogen partitioning in flag leaf explain differential grain protein content in rice
dc.creator.none.fl_str_mv Puig, María Lucrecia
RodríguezAndrés Alberto
Vidal, Alfonso Andrés
Bezus, Rodolfo
Maiale, Santiago Javier
author Puig, María Lucrecia
author_facet Puig, María Lucrecia
RodríguezAndrés Alberto
Vidal, Alfonso Andrés
Bezus, Rodolfo
Maiale, Santiago Javier
author_role author
author2 RodríguezAndrés Alberto
Vidal, Alfonso Andrés
Bezus, Rodolfo
Maiale, Santiago Javier
author2_role author
author
author
author
dc.subject.none.fl_str_mv Ciencias Agrarias
Rice
Grain protein content
Flag leaf
Gas exchange
Thermography images
Chlorophyll fluorescence
topic Ciencias Agrarias
Rice
Grain protein content
Flag leaf
Gas exchange
Thermography images
Chlorophyll fluorescence
dc.description.none.fl_txt_mv The grain protein content (GPC) in rice is low, and more efforts with agronomic and molecular approaches were performed to increase them. However, the rice research focusing on the plant physiological behaviour that modulates the phenomenon of grain protein filling is very scarce. This work contains physiological parameters related to photosynthetic activity in the flag leaf in the grain filling period and N partitioning assays of high (Nutriar) and traditional (Camba) GPC cultivars. Results indicated a higher photosynthetic capacity, a better capacity to provide CO2 to the chloroplast and a healthier PSII structure in Camba relative to Nutriar. Chlorophyll fluorescence parameters decreased more steeply over time in the high protein variety, and a strong negative correlation was observed between GPC and PSII structure parameters. N content in the flag leaf at anthesis showed lower values and higher remobilisation during the grain filling period in Nutriar compared to Camba. The results of this work suggested that the inactivation of some PSII structures in higher GPC cultivars is associated with N remobilisation and would contribute to an increase in the free N available to be translocated to the grain.
Facultad de Ciencias Agrarias y Forestales
description The grain protein content (GPC) in rice is low, and more efforts with agronomic and molecular approaches were performed to increase them. However, the rice research focusing on the plant physiological behaviour that modulates the phenomenon of grain protein filling is very scarce. This work contains physiological parameters related to photosynthetic activity in the flag leaf in the grain filling period and N partitioning assays of high (Nutriar) and traditional (Camba) GPC cultivars. Results indicated a higher photosynthetic capacity, a better capacity to provide CO2 to the chloroplast and a healthier PSII structure in Camba relative to Nutriar. Chlorophyll fluorescence parameters decreased more steeply over time in the high protein variety, and a strong negative correlation was observed between GPC and PSII structure parameters. N content in the flag leaf at anthesis showed lower values and higher remobilisation during the grain filling period in Nutriar compared to Camba. The results of this work suggested that the inactivation of some PSII structures in higher GPC cultivars is associated with N remobilisation and would contribute to an increase in the free N available to be translocated to the grain.
publishDate 2021
dc.date.none.fl_str_mv 2021
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Articulo
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://sedici.unlp.edu.ar/handle/10915/170107
url http://sedici.unlp.edu.ar/handle/10915/170107
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/issn/ISSN: 1873-2690
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.plaphy.2021.10.034
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
http://creativecommons.org/licenses/by-nc-sa/4.0/
Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)
eu_rights_str_mv openAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by-nc-sa/4.0/
Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)
dc.format.none.fl_str_mv application/pdf
457–464
dc.source.none.fl_str_mv reponame:SEDICI (UNLP)
instname:Universidad Nacional de La Plata
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instname_str Universidad Nacional de La Plata
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institution UNLP
repository.name.fl_str_mv SEDICI (UNLP) - Universidad Nacional de La Plata
repository.mail.fl_str_mv alira@sedici.unlp.edu.ar
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