Nodule carbohydrate catabolism is enhanced in the Medicago truncatula A17-Sinorhizobium medicae WSM419 symbiosis
| dc.contributor.author | Larrainzar Rodríguez, Estíbaliz | |
| dc.contributor.author | Gil Quintana, Erena | |
| dc.contributor.author | Seminario Huárriz, Amaia | |
| 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 | es |
| dc.date.accessioned | 2017-04-04T07:16:46Z | |
| dc.date.available | 2017-04-04T07:16:46Z | |
| dc.date.issued | 2014 | |
| dc.description.abstract | The symbiotic association between Medicago truncatula and Sinorhizobium meliloti is a well-established model system in the legume–Rhizobium community. Despite its wide use, the symbiotic efficiency of this model has been recently questioned and an alternative microsymbiont, S. medicae, has been proposed. However, little is known about the physiological mechanisms behind the higher symbiotic efficiency of S. medicae WSM419. In the present study, we inoculated M. truncatula Jemalong A17 with either S. medicae WSM419 or S. meliloti 2011 and compared plant growth, photosynthesis, N2-fixation rates, and plant nodule carbon and nitrogen metabolic activities in the two systems. M. truncatula plants in symbiosis with S. medicae showed increased biomass and photosynthesis rates per plant. Plants grown in symbiosis with S. medicae WSM419 also showed higher N2-fixation rates, which were correlated with a larger nodule biomass, while nodule number was similar in both systems. In terms of plant nodule metabolism, M. truncatula–S. medicae WSM419 nodules showed increased sucrose-catabolic activity, mostly associated with sucrose synthase, accompanied by a reduced starch content, whereas nitrogen-assimilation activities were comparable to those measured in nodules infected with S. meliloti 2011. Taken together, these results suggest that S. medicae WSM419 is able to enhance plant carbon catabolism in M. truncatula nodules, which allows for the maintaining of high symbiotic N2-fixation rates, better growth and improved general plant performance. | en |
| dc.description.sponsorship | This work has been partially funded by the Spanish National Research and Development Programmes (AGL2011-23738 and AGL2011- 30386-C02-01). Estíbaliz Larrainzar and Erena Gil-Quintana are funded by the European FP7-PEOPLE program (253141). Amaia Seminario is funded by a predoctoral fellowship from the Public University of Navarre. | en |
| dc.format.mimetype | application/pdf | en |
| dc.identifier.doi | 10.3389/fmicb.2014.00447 | |
| dc.identifier.issn | 1664-302X (Electronic) | |
| dc.identifier.uri | https://academica-e.unavarra.es/handle/2454/24008 | |
| dc.language.iso | eng | en |
| dc.publisher | Frontiers Media | en |
| dc.relation.ispartof | Frontiers in Microbiology 5: 447 | es_ES |
| dc.relation.projectID | info:eu-repo/grantAgreement/European Commission/FP7/253141/ | |
| dc.relation.projectID | info:eu-repo/grantAgreement/MICINN//AGL2011-23738/ES/ | |
| dc.relation.projectID | info:eu-repo/grantAgreement/MICINN//AGL2011-30386-C02-01/ES/ | |
| dc.relation.publisherversion | https://dx.doi.org/10.3389/fmicb.2014.00447 | |
| dc.rights | Copyright © 2014 Larrainzar, Gil-Quintana, Seminario, Arrese-Igor and González. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms. | en |
| dc.rights.accessRights | info:eu-repo/semantics/openAccess | |
| dc.rights.uri | https://creativecommons.org/licenses/by/4.0/ | |
| dc.subject | Medicago truncatula | en |
| dc.subject | Sinorhizobium medicae | en |
| dc.subject | Sinorhizobium meliloti | en |
| dc.subject | Symbiosis | en |
| dc.subject | Efficiency | en |
| dc.subject | Nitrogen fixation | en |
| dc.subject | Carbon metabolism | en |
| dc.title | Nodule carbohydrate catabolism is enhanced in the Medicago truncatula A17-Sinorhizobium medicae WSM419 symbiosis | en |
| dc.type | info:eu-repo/semantics/article | |
| dc.type.version | info:eu-repo/semantics/publishedVersion | |
| dspace.entity.type | Publication | |
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