Understanding the legume-rhizobia symbioses: key role of microscopy techniques
Trabajo presentado en el Spanish Portuguese Meeting for Advanced Optical Microscopy (SPAOM), celebrado en Granada (España), del 24 al 26 de octubre de 2018
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2018-10-24
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dig-ica-es-10261-2000232021-06-07T07:41:10Z Understanding the legume-rhizobia symbioses: key role of microscopy techniques Lucas, M. Mercedes Lara-Dampier, Victoria Fedorova, Elena E. Morcillo, César N. Fajardo, Susana Pallol, Beatriz Fernández-Pascual, Mercedes Pueyo, José Javier Ministerio de Economía y Competitividad (España) Trabajo presentado en el Spanish Portuguese Meeting for Advanced Optical Microscopy (SPAOM), celebrado en Granada (España), del 24 al 26 de octubre de 2018 The symbiotic association between certain soil bacteria (rhizobia) and most legumes leads to the formation of root nodules, symbiotic organs in which the fixation of atmospheric nitrogen takes place. This symbiosis is significantly important for the nitrogen input in both agricultural and natural ecosystems, but it can be affected by environmental stresses. Nodulation is a complex process not completely understood; some features differ depending on the legume, and they lead to distinct nodule types. After a specific recognition between the symbionts through the exchange of bacterial and plant signalling molecules, the nodule primordium is induced and rhizobia enter the root cortex and infect cells of this primordium. Bacteria are released into the host cell surrounded by a plantderived membrane and form a new cellular compartment, the symbiosome, which is a nitrogen-fixing microfactory. Based on several characteristics of the symbiosome including its metabolic behaviour, the composite origin of the membrane, the cytoskeletal dynamics and symbiosome segregation during the division of rhizobia-infected cells in certain legume nodules, symbiosome can be considered an organelle-like 1 . Legume nodules are probably one of the most fascinating plant organs. They have been studied for more than a century, and microscopy techniques have been and will be key tools to enhance our understanding of this symbiosis. We will present examples of how microscopy techniques (light, fluorescence, laser confocal, TEM, LTSEM and X-Ray microanalysis, etc.) have been essential to elucidate different aspects of nodule development, structure and functioning, as well as its response to abiotic stress. This work was supported by a grant from MINECO/AEI AGL2017-88381-R. 2020-02-07T13:21:36Z 2020-02-07T13:21:36Z 2018-10-24 2020-02-07T13:21:36Z comunicación de congreso http://purl.org/coar/resource_type/c_5794 Spanish Portuguese Meeting for Advanced Optical Microscopy (2018) http://hdl.handle.net/10261/200023 http://dx.doi.org/10.13039/501100003329 #PLACEHOLDER_PARENT_METADATA_VALUE# info:eu-repo/grantAgreement/MINECO/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/AGL2017-88381-R Sí none |
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Trabajo presentado en el Spanish Portuguese Meeting for Advanced Optical Microscopy (SPAOM), celebrado en Granada (España), del 24 al 26 de octubre de 2018 |
| author2 |
Ministerio de Economía y Competitividad (España) |
| author_facet |
Ministerio de Economía y Competitividad (España) Lucas, M. Mercedes Lara-Dampier, Victoria Fedorova, Elena E. Morcillo, César N. Fajardo, Susana Pallol, Beatriz Fernández-Pascual, Mercedes Pueyo, José Javier |
| format |
comunicación de congreso |
| author |
Lucas, M. Mercedes Lara-Dampier, Victoria Fedorova, Elena E. Morcillo, César N. Fajardo, Susana Pallol, Beatriz Fernández-Pascual, Mercedes Pueyo, José Javier |
| spellingShingle |
Lucas, M. Mercedes Lara-Dampier, Victoria Fedorova, Elena E. Morcillo, César N. Fajardo, Susana Pallol, Beatriz Fernández-Pascual, Mercedes Pueyo, José Javier Understanding the legume-rhizobia symbioses: key role of microscopy techniques |
| author_sort |
Lucas, M. Mercedes |
| title |
Understanding the legume-rhizobia symbioses: key role of microscopy techniques |
| title_short |
Understanding the legume-rhizobia symbioses: key role of microscopy techniques |
| title_full |
Understanding the legume-rhizobia symbioses: key role of microscopy techniques |
| title_fullStr |
Understanding the legume-rhizobia symbioses: key role of microscopy techniques |
| title_full_unstemmed |
Understanding the legume-rhizobia symbioses: key role of microscopy techniques |
| title_sort |
understanding the legume-rhizobia symbioses: key role of microscopy techniques |
| publishDate |
2018-10-24 |
| url |
http://hdl.handle.net/10261/200023 http://dx.doi.org/10.13039/501100003329 |
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