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dc.creatorSoba Hidalgo, Davides_ES
dc.creatorZhou, Bangweies_ES
dc.creatorArrese-Igor Sánchez, Césares_ES
dc.creatorMunné Bosch, Sergies_ES
dc.creatorAranjuelo Michelena, Ikeres_ES
dc.date.accessioned2020-05-19T06:57:53Z
dc.date.available2020-05-19T06:57:53Z
dc.date.issued2019
dc.identifier.issn1661-6596
dc.identifier.urihttps://hdl.handle.net/2454/36909
dc.description.abstractAlfalfa (Medicago sativa L.) is frequently constrained by environmental conditions such as drought. Within this context, it is crucial to identify the physiological and metabolic traits conferring a better performance under stressful conditions. In the current study, two alfalfa cultivars (San Isidro and Zhong Mu) with different physiological strategies were selected and subjected to water limitation conditions. Together with the physiological analyses, we proceeded to characterize the isotopic, hormone, and metabolic profiles of the different plants. According to physiological and isotopic data, Zhong Mu has a water-saver strategy, reducing water lost by closing its stomata but fixing less carbon by photosynthesis, and therefore limiting its growth under water-stressed conditions. In contrast, San Isidro has enhanced root growth to replace the water lost through transpiration due to its more open stomata, thus maintaining its biomass. Zhong Mu nodules were less able to maintain nodule N2 fixing activity (matching plant nitrogen (N) demand). Our data suggest that this cultivar-specific performance is linked to Asn accumulation and its consequent N-feedback nitrogenase inhibition. Additionally, we observed a hormonal reorchestration in both cultivars under drought. Therefore, our results showed an intra-specific response to drought at physiological and metabolic levels in the two alfalfa cultivars studied.en
dc.description.sponsorshipThis work was supported by the i-COOP-suelos y legumbres (2016SU0016) call funded by the National Research Council. David Soba is the recipient of a PhD grant supported by the Public University of Navarraen
dc.format.extent19 p.
dc.format.mimetypeapplication/pdfen
dc.language.isoengen
dc.publisherMDPIen
dc.relation.ispartofInternational Journal of Molecular Sciences, 2019, 20 (20), 5099en
dc.rights© 2019 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY)en
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/
dc.subjectAlfalfaen
dc.subjectDroughten
dc.subjectHormonesen
dc.subjectMetabolitesen
dc.subjectN/C metabolismen
dc.subjectNoduleen
dc.subjectPhysiologyen
dc.titlePhysiological, hormonal and metabolic responses of two alfalfa cultivars with contrasting responses to droughten
dc.typeinfo:eu-repo/semantics/articleen
dc.typeArtículo / Artikuluaes
dc.contributor.departmentUniversidad Pública de Navarra. Departamento de Cienciases_ES
dc.contributor.departmentNafarroako Unibertsitate Publikoa. Zientziak Sailaeu
dc.contributor.departmentUniversidad Pública de Navarra / Nafarroako Unibertsitate Publikoa. IMAB - Institute for Multidisciplinary Research in Applied Biologyes_ES
dc.rights.accessRightsinfo:eu-repo/semantics/openAccessen
dc.rights.accessRightsAcceso abierto / Sarbide irekiaes
dc.identifier.doi10.3390/ijms20205099
dc.relation.publisherversionhttps://doi.org/10.3390/ijms20205099
dc.type.versioninfo:eu-repo/semantics/publishedVersionen
dc.type.versionVersión publicada / Argitaratu den bertsioaes
dc.contributor.funderUniversidad Pública de Navarra / Nafarroako Unibertsitate Publikoaes


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© 2019 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access
article distributed under the terms and conditions of the Creative Commons Attribution
(CC BY)
Except where otherwise noted, this item's license is described as © 2019 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY)