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Artículo
Structure and biological roles of Sinorhizobium fredii HH103 exopolysaccharide
(Public Library of Science, 2014)
Here we report that the structure of the Sinorhizobium fredii HH103 exopolysaccharide (EPS) is composed of glucose, galactose, glucuronic acid, pyruvic acid, in the ratios 5:2:2:1 and is partially acetylated. A S. fredii ...
Artículo
Regulatory elements located in the upstream region of the Rhizobium leguminosarum rosR global regulator are essential for its transcription and mRNA stability
(Multidisciplinary Digital Publishing Institute (MDPI), 2017)
Rhizobium leguminosarum bv. trifolii is a soil bacterium capable of establishing a symbiotic relationship with clover (Trifolium spp.). Previously, the rosR gene, encoding a global regulatory protein involved in motility, ...
Artículo
The underlying process of early ecological and genetic differentiation in a facultative mutualistic Sinorhizobium meliloti population
(Nature Publishing Group, 2017)
The question of how genotypic and ecological units arise and spread in natural microbial populations remains controversial in the field of evolutionary biology. Here, we investigated the early stages of ecological and ...
Artículo
Sinorhizobium fredii HH103 invades lotus burttii by crack entry in a nod factor- and surface polysaccharide-dependent manner
(American Phytopathological Society, 2016)
Sinorhizobium fredii HH103-Rifr, a broad host range rhizobial strain, induces nitrogen-fixing nodules in Lotus burttii but ineffective nodules in L. japonicus. Confocal microscopy studies showed that Mesorhizobium loti ...
Tesis Doctoral
Regulación de la producción del Exopolisacárido en Sinorhizobium fredii HH103, un simbionte de la soja y otras leguminosas.
(2017-09-28)
Los rizobios son bacterias del suelo pertenecientes a las clases α- y β-Proteobacteria y que son capaces de llevar a cabo la fijación biológica del nitrógeno molecular en simbiosis con plantas leguminosas (Spaink et al., ...
Artículo
Hanks-Type Serine/Threonine Protein Kinases and Phosphatases in Bacteria: Roles in Signaling and Adaptation to Various Environments
(MDPI, 2018)
Reversible phosphorylation is a key mechanism that regulates many cellular processes in prokaryotes and eukaryotes. In prokaryotes, signal transduction includes two-component signaling systems, which involve a membrane ...
Artículo
Transcriptomic studies of the effect of nod gene-inducing molecules in rhizobia: Different weapons, one purpose
(Multidisciplinary Digital Publishing Institute (MDPI), 2018)
Simultaneous quantification of transcripts of the whole bacterial genome allows the analysis of the global transcriptional response under changing conditions. RNA-seq and microarrays are the most used techniques to measure ...
Artículo
Mutation in the pssZ Gene Negatively Impacts Exopolysaccharide Synthesis, Surface Properties, and Symbiosis of Rhizobium leguminosarum bv. trifolii with Clover
(MDPI, 2018)
Rhizobium leguminosarum bv. trifolii is a soil bacterium capable of establishing a nitrogen-fixing symbiosis with clover plants (Trifolium spp.). This bacterium secretes large amounts of acidic exopolysaccharide (EPS), ...
Tesis Doctoral
Estudio del papel simbiótico de los polisacáridos superficiales de Sinorhizobium fredii HH103
(2012)
Nuestro grupo de investigación lleva años estudiando los polisacáridos superficiales de la bacteria Sinorhizobium fredii HH103 y cómo éstos intervienen en el establecimiento de una simbiosis funcional con sus leguminosas ...