Exopolysaccharide characterization of Rhizobium favelukesii LPU83 and its role in the symbiosis with alfalfa

One of the greatest inputs of available nitrogen into the biosphere occurs through the biological N2-fixation to ammonium as result of the symbiosis between rhizobia and leguminous plants. These interactions allow increased crop yields on nitrogen-poor soils. Exopolysaccharides (EPS) are key compone...

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Autores principales:	Castellani, Lucas Gabriel, Luchetti, Abril, Nilsson, Juliet Fernanda, Pérez Giménez, Julieta, Wegener, Caren, Schlüter, Andreas, Pühler, Alfred, Lagares, Antonio, Brom, Susana, Pistorio, Mariano, Niehaus, Karsten, Torres Tejerizo, Gonzalo Arturo
Formato:	Articulo
Lenguaje:	Inglés
Publicado:	2021
Materias:	Biología Botánica Rhizobia Symbiosis Alfalfa Exopolysaccharide Nitrogen fixation
Acceso en línea:	http://sedici.unlp.edu.ar/handle/10915/124226
Aporte de:	SEDICI (UNLP) de Universidad Nacional de La Plata

id	I19-R120-10915-124226
record_format	dspace
institution	Universidad Nacional de La Plata
institution_str	I-19
repository_str	R-120
collection	SEDICI (UNLP)
language	Inglés
topic	Biología Botánica Rhizobia Symbiosis Alfalfa Exopolysaccharide Nitrogen fixation
spellingShingle	Biología Botánica Rhizobia Symbiosis Alfalfa Exopolysaccharide Nitrogen fixation Castellani, Lucas Gabriel Luchetti, Abril Nilsson, Juliet Fernanda Pérez Giménez, Julieta Wegener, Caren Schlüter, Andreas Pühler, Alfred Lagares, Antonio Brom, Susana Pistorio, Mariano Niehaus, Karsten Torres Tejerizo, Gonzalo Arturo Exopolysaccharide characterization of Rhizobium favelukesii LPU83 and its role in the symbiosis with alfalfa
topic_facet	Biología Botánica Rhizobia Symbiosis Alfalfa Exopolysaccharide Nitrogen fixation
description	One of the greatest inputs of available nitrogen into the biosphere occurs through the biological N2-fixation to ammonium as result of the symbiosis between rhizobia and leguminous plants. These interactions allow increased crop yields on nitrogen-poor soils. Exopolysaccharides (EPS) are key components for the establishment of an effective symbiosis between alfalfa and Ensifer meliloti, as bacteria that lack EPS are unable to infect the host plants. Rhizobium favelukesii LPU83 is an acid-tolerant rhizobia strain capable of nodulating alfalfa but inefficient to fix nitrogen. Aiming to identify the molecular determinants that allow R. favelukesii to infect plants, we studied its EPS biosynthesis. LPU83 produces an EPS I identical to the one present in Ensifer meliloti, but the organization of the genes involved in its synthesis is different. The main gene cluster needed for the synthesis of EPS I in E. meliloti, is split into three different sections in R. favelukesii, which probably arose by a recent event of horizontal gene transfer. A R. favelukesii strain devoided of all the genes needed for the synthesis of EPS I is still able to infect and nodulate alfalfa, suggesting that attention should be directed to other molecules involved in the development of the symbiosis.
format	Articulo Articulo
author	Castellani, Lucas Gabriel Luchetti, Abril Nilsson, Juliet Fernanda Pérez Giménez, Julieta Wegener, Caren Schlüter, Andreas Pühler, Alfred Lagares, Antonio Brom, Susana Pistorio, Mariano Niehaus, Karsten Torres Tejerizo, Gonzalo Arturo
author_facet	Castellani, Lucas Gabriel Luchetti, Abril Nilsson, Juliet Fernanda Pérez Giménez, Julieta Wegener, Caren Schlüter, Andreas Pühler, Alfred Lagares, Antonio Brom, Susana Pistorio, Mariano Niehaus, Karsten Torres Tejerizo, Gonzalo Arturo
author_sort	Castellani, Lucas Gabriel
title	Exopolysaccharide characterization of Rhizobium favelukesii LPU83 and its role in the symbiosis with alfalfa
title_short	Exopolysaccharide characterization of Rhizobium favelukesii LPU83 and its role in the symbiosis with alfalfa
title_full	Exopolysaccharide characterization of Rhizobium favelukesii LPU83 and its role in the symbiosis with alfalfa
title_fullStr	Exopolysaccharide characterization of Rhizobium favelukesii LPU83 and its role in the symbiosis with alfalfa
title_full_unstemmed	Exopolysaccharide characterization of Rhizobium favelukesii LPU83 and its role in the symbiosis with alfalfa
title_sort	exopolysaccharide characterization of rhizobium favelukesii lpu83 and its role in the symbiosis with alfalfa
publishDate	2021
url	http://sedici.unlp.edu.ar/handle/10915/124226
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bdutipo_str	Repositorios
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Exopolysaccharide characterization of Rhizobium favelukesii LPU83 and its role in the symbiosis with alfalfa

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