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

Simple item page
dc.contributor.authorJáuregui Mosquera, Iván
dc.contributor.authorMitsui, Toshiaki
dc.contributor.authorGakière, Bertrand
dc.contributor.authorMauve, Caroline
dc.contributor.authorGilard, Françoise
dc.contributor.authorAranjuelo Michelena, Iker
dc.contributor.authorBaslam, Marouane
dc.contributor.departmentCienciases_ES
dc.contributor.departmentZientziakeu
dc.date.accessioned2025-06-24T13:39:29Z
dc.date.available2025-06-24T13:39:29Z
dc.date.issued2025-03-11
dc.date.updated2025-06-24T13:25:52Z
dc.description.abstractThe 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.en
dc.description.sponsorshipThe 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).
dc.format.mimetypeapplication/pdf
dc.identifier.citationJauregui, I., Mitsui, T., Gakière, B., Mauve, C., Gilard, F., Aranjuelo, I., Baslam, M. (2025) Nitrogen fertilization form and energetic status as target points conditioning rice responsiveness to elevated [CO2]. Frontiers in Plant Science, 16, 1-14. https://doi.org/10.3389/fpls.2025.1517360.
dc.identifier.doi10.3389/fpls.2025.1517360
dc.identifier.issn1664-462X
dc.identifier.urihttps://academica-e.unavarra.es/handle/2454/54306
dc.language.isoeng
dc.publisherFrontiers Media
dc.relation.ispartofFrontiers in Plant Science 16, 2025
dc.relation.publisherversionhttps://doi.org/10.3389/fpls.2025.1517360
dc.rights© 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).
dc.rights.accessRightsinfo:eu-repo/semantics/openAccess
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/
dc.subjectRiceen
dc.subjectLow light intensityen
dc.subjectElevated CO2en
dc.subjectNitrogen sourceen
dc.subjectNitrateen
dc.subjectPlasticityen
dc.subjectATPen
dc.subjectPhotosynthesisen
dc.titleNitrogen fertilization form and energetic status as target points conditioning rice responsiveness to elevated [CO2]en
dc.typeinfo:eu-repo/semantics/article
dc.type.versioninfo:eu-repo/semantics/publishedVersion
dspace.entity.typePublication
relation.isAuthorOfPublicationebca79b9-1e2a-4729-b4ce-295c81474eb4
relation.isAuthorOfPublicationb8dd84ae-83ed-4e3f-873e-b0023505b3df
relation.isAuthorOfPublication44f8348d-8a3c-4f89-bbaa-8303920682c3
relation.isAuthorOfPublication.latestForDiscoveryebca79b9-1e2a-4729-b4ce-295c81474eb4

Files

Original bundle
Now showing 1 - 2 of 2
Thumbnail Image
Name:
Jauregui_Nitrogen.pdf
Size:
4.56 MB
Format:
Adobe Portable Document Format
Download
Thumbnail Image
Name:
Jauregui_Nitrogen_MatCompl.pdf
Size:
1.7 MB
Format:
Adobe Portable Document Format
Download
License bundle
Now showing 1 - 1 of 1
No Thumbnail Available
Name:
license.txt
Size:
1.71 KB
Format:
Item-specific license agreed to upon submission
Description:
Download

Collections

Artículos de revista DCIE - ZIES Aldizkari artikuluak
Artículos de revista - Aldizkari artikuluak