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
- Institución
- Universidad Nacional de La Plata
- OAI Identificador
- oai:sedici.unlp.edu.ar:10915/170107
Ver los metadatos del registro completo
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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) |
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openAccess |
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http://creativecommons.org/licenses/by-nc-sa/4.0/ Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0) |
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application/pdf 457–464 |
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SEDICI (UNLP) - Universidad Nacional de La Plata |
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