Nitrogen fertilization form and energetic status as target points conditioning rice responsiveness to elevated [CO2]

The nitrogen (N) fertilization form and plant energy status are known to significantly influence plant responses to elevated atmospheric carbon dioxide (CO2) concentrations. However, a close examination of the interplay between N sources under contrasting light intensity has been notably absent in t...

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Autores: Jáuregui Mosquera, Iván, Mitsui, Toshiaki, Gakière, Bertrand, Mauve, Caroline, Gilard, Françoise, Aranjuelo Michelena, Iker, Baslam, Marouane
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2025
País:España
Institución:Universidad Pública de Navarra
Repositorio:Academica-e. Repositorio Institucional de la Universidad Pública de Navarra
OAI Identifier:oai:academica-e.unavarra.es:2454/54306
Acceso en línea:https://hdl.handle.net/2454/54306
Access Level:acceso abierto
Palabra clave:Rice
Low light intensity
Elevated CO2
Nitrogen source
Nitrate
Plasticity
ATP
Photosynthesis
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spelling Nitrogen fertilization form and energetic status as target points conditioning rice responsiveness to elevated [CO2]Jáuregui Mosquera, IvánMitsui, ToshiakiGakière, BertrandMauve, CarolineGilard, FrançoiseAranjuelo Michelena, IkerBaslam, MarouaneRiceLow light intensityElevated CO2Nitrogen sourceNitratePlasticityATPPhotosynthesisThe nitrogen (N) fertilization form and plant energy status are known to significantly influence plant responses to elevated atmospheric carbon dioxide (CO2) concentrations. However, a close examination of the interplay between N sources under contrasting light intensity has been notably absent in the literature. In this study, we conducted a factorial experiment with rice plants involving two different light intensities (150 and 300 µmol m-2 s-1), inorganic N sources [nitrate (N-NO3) or ammonium nitrate (N-NH4NO3)] at varying CO2 levels (410 and 700 parts per million, ppm). The aim was to examine the individual and combined effects of these factors on the allocation of biomass in whole plants, as well as on leaf-level photosynthetic characteristics, chloroplast morphology and development, ATP content, ionomics, metabolomics, and hormone profiles. Our research hypothesis posits that mixed nutrition enhances plant responsiveness to elevated CO2 (eCO2) at both light levels compared to sole N-NO3 nutrition, due to its diminished energy demands for plant assimilation. Our findings indicate that N-NO3 nutrition does not promote the growth of rice, its photosynthetic capacity, or N content when exposed to ambient CO2 (aCO2), and is significantly reduced in low light (LL) conditions. Rice plants with N-NH4NO3 exhibited a higher carboxylation capacity, which resulted in larger biomass (total C, tiller number, and lower root-shoot ratio) supported by higher Calvin-cycle-related sugars. The lower leaf N content and overall amino acid levels at eCO2, particularly pronounced in N-NO3, combined with the lower ATP content (lowest at LL and N-NO3), may reflect the higher energy costs of N assimilation at eCO2. We also observed significant plasticity patterns in leaves under eCO2. Our findings highlight the importance of a thorough physiological understanding to inform innovative management practices aimed at mitigating the negative effects of climate change on plant N use efficiency.The author(s) declare financial support was received for the research, authorship, and/or publication of this article. The current study was carried out in the context of the CropYQualT-CEC funded by the Marie Curie RISE program (European Commission).Frontiers MediaCienciasZientziak2025info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://hdl.handle.net/2454/54306reponame:Academica-e. Repositorio Institucional de la Universidad Pública de Navarrainstname:Universidad Pública de NavarraInglés© 2025 Jauregui, Mitsui, Gakière, Mauve, Gilard, Aranjuelo and Baslam. This is an openaccess article distributed under the terms of the Creative Commons Attribution License (CC BY).http://creativecommons.org/licenses/by/4.0/info:eu-repo/semantics/openAccessoai:academica-e.unavarra.es:2454/543062026-06-17T12:41:47Z
dc.title.none.fl_str_mv Nitrogen fertilization form and energetic status as target points conditioning rice responsiveness to elevated [CO2]
title Nitrogen fertilization form and energetic status as target points conditioning rice responsiveness to elevated [CO2]
spellingShingle Nitrogen fertilization form and energetic status as target points conditioning rice responsiveness to elevated [CO2]
Jáuregui Mosquera, Iván
Rice
Low light intensity
Elevated CO2
Nitrogen source
Nitrate
Plasticity
ATP
Photosynthesis
title_short Nitrogen fertilization form and energetic status as target points conditioning rice responsiveness to elevated [CO2]
title_full Nitrogen fertilization form and energetic status as target points conditioning rice responsiveness to elevated [CO2]
title_fullStr Nitrogen fertilization form and energetic status as target points conditioning rice responsiveness to elevated [CO2]
title_full_unstemmed Nitrogen fertilization form and energetic status as target points conditioning rice responsiveness to elevated [CO2]
title_sort Nitrogen fertilization form and energetic status as target points conditioning rice responsiveness to elevated [CO2]
dc.creator.none.fl_str_mv Jáuregui Mosquera, Iván
Mitsui, Toshiaki
Gakière, Bertrand
Mauve, Caroline
Gilard, Françoise
Aranjuelo Michelena, Iker
Baslam, Marouane
author Jáuregui Mosquera, Iván
author_facet Jáuregui Mosquera, Iván
Mitsui, Toshiaki
Gakière, Bertrand
Mauve, Caroline
Gilard, Françoise
Aranjuelo Michelena, Iker
Baslam, Marouane
author_role author
author2 Mitsui, Toshiaki
Gakière, Bertrand
Mauve, Caroline
Gilard, Françoise
Aranjuelo Michelena, Iker
Baslam, Marouane
author2_role author
author
author
author
author
author
dc.contributor.none.fl_str_mv Ciencias
Zientziak
dc.subject.none.fl_str_mv Rice
Low light intensity
Elevated CO2
Nitrogen source
Nitrate
Plasticity
ATP
Photosynthesis
topic Rice
Low light intensity
Elevated CO2
Nitrogen source
Nitrate
Plasticity
ATP
Photosynthesis
description The nitrogen (N) fertilization form and plant energy status are known to significantly influence plant responses to elevated atmospheric carbon dioxide (CO2) concentrations. However, a close examination of the interplay between N sources under contrasting light intensity has been notably absent in the literature. In this study, we conducted a factorial experiment with rice plants involving two different light intensities (150 and 300 µmol m-2 s-1), inorganic N sources [nitrate (N-NO3) or ammonium nitrate (N-NH4NO3)] at varying CO2 levels (410 and 700 parts per million, ppm). The aim was to examine the individual and combined effects of these factors on the allocation of biomass in whole plants, as well as on leaf-level photosynthetic characteristics, chloroplast morphology and development, ATP content, ionomics, metabolomics, and hormone profiles. Our research hypothesis posits that mixed nutrition enhances plant responsiveness to elevated CO2 (eCO2) at both light levels compared to sole N-NO3 nutrition, due to its diminished energy demands for plant assimilation. Our findings indicate that N-NO3 nutrition does not promote the growth of rice, its photosynthetic capacity, or N content when exposed to ambient CO2 (aCO2), and is significantly reduced in low light (LL) conditions. Rice plants with N-NH4NO3 exhibited a higher carboxylation capacity, which resulted in larger biomass (total C, tiller number, and lower root-shoot ratio) supported by higher Calvin-cycle-related sugars. The lower leaf N content and overall amino acid levels at eCO2, particularly pronounced in N-NO3, combined with the lower ATP content (lowest at LL and N-NO3), may reflect the higher energy costs of N assimilation at eCO2. We also observed significant plasticity patterns in leaves under eCO2. Our findings highlight the importance of a thorough physiological understanding to inform innovative management practices aimed at mitigating the negative effects of climate change on plant N use efficiency.
publishDate 2025
dc.date.none.fl_str_mv 2025
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv https://hdl.handle.net/2454/54306
url https://hdl.handle.net/2454/54306
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.rights.none.fl_str_mv http://creativecommons.org/licenses/by/4.0/
info:eu-repo/semantics/openAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by/4.0/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Frontiers Media
publisher.none.fl_str_mv Frontiers Media
dc.source.none.fl_str_mv reponame:Academica-e. Repositorio Institucional de la Universidad Pública de Navarra
instname:Universidad Pública de Navarra
instname_str Universidad Pública de Navarra
reponame_str Academica-e. Repositorio Institucional de la Universidad Pública de Navarra
collection Academica-e. Repositorio Institucional de la Universidad Pública de Navarra
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repository.mail.fl_str_mv
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