Publication: Pea plant responsiveness under elevated [CO2] is conditioned by the N source (N2 fixation versus NO3 fertilization)
| dc.contributor.author | Aranjuelo Michelena, Iker | |
| dc.contributor.author | Cabrerizo Geijo, Pablo María | |
| dc.contributor.author | Arrese-Igor Sánchez, César | |
| dc.contributor.author | Aparicio Tejo, Pedro María | |
| dc.contributor.department | IdAB. Instituto de Agrobiotecnología / Agrobioteknologiako Institutua | es_ES |
| dc.contributor.department | Ciencias del Medio Natural | es_ES |
| dc.contributor.department | Natura Ingurunearen Zientziak | eu |
| dc.date.accessioned | 2022-11-17T12:04:35Z | |
| dc.date.available | 2022-11-17T12:04:35Z | |
| dc.date.issued | 2013 | |
| dc.description.abstract | The main goal of this study was to test the effect of [CO2] on C and N management in 2different plant organs (shoots, roots and nodules) and its implication in the 3responsiveness of exclusively N2-fixing and NO3--fed plants. For this purpose, 4exclusively N2-fixingand NO3--fed (10 mM) pea (Pisum sativumL.) plants were 5exposed to elevated [CO2] (1000 mol mol-1versus360 mol mol-1CO2). Gas 6exchange analyses, together with carbohydrate, nitrogen, total soluble proteins and 7amino acids were determined in leaves, roots and nodules. The data obtained revealed 8that although exposure to elevated [CO2] increased total dry mass (DM)in both N 9treatments, photosynthetic activity was down-regulated in NO3--fed plants, whereas N2-10fixing plants were capable of maintaining enhanced photosynthetic rates under elevated 11[CO2]. In the case of N2-fixing plants, the enhanced C sink strength of nodules enabled 12the avoidance of harmful leaf carbohydrate build up. On the other hand, in NO3--fed 13plants, elevated [CO2] caused a large increase in sucrose and starch. The increase in root 14DM did not contribute to stimulation ofC sinks in these plants. Although N2fixation 15matched plant N requirementswith the consequent increase in photosynthetic rates, in 16NO3--fed plants, exposure to elevated [CO2] negatively affected N assimilationwith the 17consequent photosynthetic down-regulation. | en |
| dc.description.sponsorship | This work has been funded by the Spanish National Research and Development Programme (AGL2011-30386-CO2-1 and AGL2011-30386-CO2-2). Iker Aranjuelo was the recipient of a Ramón y Cajal research grant (Ministerio de Economía y Competitividad). | en |
| dc.format.extent | 31 p. | |
| dc.format.mimetype | application/pdf | en |
| dc.identifier.citation | Aranjuelo, I., Cabrerizo, P. M., Arrese-Igor, C., & Aparicio-Tejo, P. M. (2013). Pea plant responsiveness under elevated [CO2] is conditioned by the N source (N2 fixation versus NO3− fertilization). Environmental and Experimental Botany, 95, 34-40. | en |
| dc.identifier.doi | 10.1016/j.envexpbot.2013.06.002 | |
| dc.identifier.issn | 1873-7307 (Electronic) | |
| dc.identifier.uri | https://academica-e.unavarra.es/handle/2454/44410 | |
| dc.language.iso | eng | en |
| dc.publisher | Elsevier | en |
| dc.relation.ispartof | Environmental and Experimental Botany 95 (2013) 34– 40 | en |
| dc.relation.projectID | info:eu-repo/grantAgreement/MICINN//AGL2011-30386-C02-01/ES/ | en |
| dc.relation.projectID | info:eu-repo/grantAgreement/MICINN//AGL2011-30386-C02-01/ES/ | en |
| dc.relation.publisherversion | https://doi.org/10.1016/j.envexpbot.2013.06.002 | |
| dc.rights | © 2013 Elsevier B.V. This manuscript version is made available under the CC-BY-NC-ND 4.0 | en |
| dc.rights.accessRights | info:eu-repo/semantics/openAccess | en |
| dc.rights.accessRights | Acceso abierto / Sarbide irekia | es |
| dc.rights.uri | http://creativecommons.org/licenses/by-nc-nd/4.0/ | |
| dc.subject | Carbon | en |
| dc.subject | CO2 | en |
| dc.subject | Legumes | en |
| dc.subject | Nitrogen | en |
| dc.subject | Sink | en |
| dc.title | Pea plant responsiveness under elevated [CO2] is conditioned by the N source (N2 fixation versus NO3 fertilization) | en |
| dc.type | info:eu-repo/semantics/article | en |
| dc.type | Artículo / Artikulua | es |
| dc.type.version | info:eu-repo/semantics/acceptedVersion | en |
| dc.type.version | Versión aceptada / Onetsi den bertsioa | es |
| dspace.entity.type | Publication | |
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