Drought stress provokes the down-regulation of methionine and ethylene biosynthesis pathways in Medicago truncatula roots and nodules

Larrainzar Rodríguez, Estíbaliz; Molenaar, Johanna A.; Wienkoop, Stefanie; Gil Quintana, Erena; Alibert, Bénédicte; Limami, Anis M.; Arrese-Igor Sánchez, César; González García, Esther

Publication:
Drought stress provokes the down-regulation of methionine and ethylene biosynthesis pathways in Medicago truncatula roots and nodules

dc.contributor.author	Larrainzar Rodríguez, Estíbaliz
dc.contributor.author	Molenaar, Johanna A.
dc.contributor.author	Wienkoop, Stefanie
dc.contributor.author	Gil Quintana, Erena
dc.contributor.author	Alibert, Bénédicte
dc.contributor.author	Limami, Anis M.
dc.contributor.author	Arrese-Igor Sánchez, César
dc.contributor.author	González García, Esther
dc.contributor.department	Ciencias del Medio Natural	es_ES
dc.contributor.department	Natura Ingurunearen Zientziak	eu
dc.contributor.funder	Universidad Pública de Navarra / Nafarroako Unibertsitate Publikoa, 735/2008	es
dc.date.accessioned	2017-04-11T08:01:00Z
dc.date.available	2017-04-11T08:01:00Z
dc.date.issued	2014
dc.description	Incluye 3 ficheros de datos	es_ES
dc.description.abstract	Symbiotic nitrogen fixation is one of the first physiological processes inhibited in legume plants under water-deficit conditions. Despite the progress made in the last decades, the molecular mechanisms behind this regulation are not fully understood yet. Recent proteomic work carried out in the model legume Medicago truncatula provided the first indications of a possible involvement of nodule methionine (Met) biosynthesis and related pathways in response to waterdeficit conditions. To better understand this involvement, the drought-induced changes in expression and content of enzymes involved in the biosynthesis of Met, S-adenosyl-Lmethionine (SAM) and ethylene in M. truncatula root and nodules were analyzed using targeted approaches. Nitrogenfixing plants were subjected to a progressive water deficit and a subsequent recovery period. Besides the physiological characterization of the plants,the content of total sulphur,sulphate and main S-containing metabolites was measured. Results presented here show that S availability is not a limiting factor in the drought-induced decline of nitrogen fixation rates in M. truncatula plants and provide evidences for a downregulation of the Met and ethylene biosynthesis pathways in roots and nodules in response to water-deficit conditions.	en
dc.description.sponsorship	This work was supported by the Spanish Ministry of Economy and Competitiveness (AGL 2011–23738 and AGL 2011–30386-C02-01).E.L. is a recipient of a Marie Curie International Outgoing Fellowship for Career Development (PIOF-GA-2009–253141). E.G-Q. received a PhD fellowship from the Public University of Navarre (735/2008).	en
dc.format.mimetype	application/pdf	en
dc.format.mimetype	application/zip	en
dc.identifier.doi	10.1111/pce.12285
dc.identifier.issn	0140-7791 (Print)
dc.identifier.issn	1365-3040 (Electronic)
dc.identifier.uri	https://academica-e.unavarra.es/handle/2454/24089
dc.language.iso	eng	en
dc.publisher	Wiley	en
dc.relation.ispartof	Plant, Cell and Environment 37: 2051-2063	en
dc.relation.projectID	info:eu-repo/grantAgreement/European Commission/FP7/253141	en
dc.relation.projectID	info:eu-repo/grantAgreement/MICINN//AGL2011-23738/ES/	en
dc.relation.projectID	info:eu-repo/grantAgreement/MICINN//AGL2011-30386-C02-01/ES/	en
dc.relation.publisherversion	https://dx.doi.org/10.1111/pce.12285
dc.rights	© 2014 John Wiley & Sons Ltd	en
dc.rights.accessRights	info:eu-repo/semantics/openAccess
dc.subject	Symbiosis	en
dc.subject	Proteome	en
dc.subject	Sulfur metabolism.	en
dc.title	Drought stress provokes the down-regulation of methionine and ethylene biosynthesis pathways in Medicago truncatula roots and nodules	en
dc.type	info:eu-repo/semantics/article
dc.type.version	Versión aceptada / Onetsi den bertsioa	es
dc.type.version	info:eu-repo/semantics/acceptedVersion	en
dspace.entity.type	Publication
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