Carmen Vargas

Montserrat Argandoña7
Joaquín J Nieto4
Mercedes Reina-Bueno4
Fernando Iglesias-Guerra4
7Montserrat Argandoña
4Joaquín J Nieto
4Mercedes Reina-Bueno
4Fernando Iglesias-Guerra
Learn More
  • Mercedes Reina-Bueno, Montserrat Argandoña, Manuel Salvador, Javier Rodríguez-Moya, Fernando Iglesias-Guerra, Laszlo N. Csonka +2 others
  • 2012
The disaccharide trehalose is considered as a universal stress molecule, protecting cells and biomolecules from injuries imposed by high osmolarity, heat, oxidation, desiccation and freezing. Chromohalobacter salexigens is a halophilic and extremely halotolerant γ-proteobacterium of the family Halomonadaceae. In this work, we have investigated the role of(More)
The synthesis of the compatible solute ectoine, mediated by the ectABC gene products, is the main mechanism used by the halophilic bacterium Chromohalobacter salexigens to cope with osmotic stress. Evidence was found that this process is regulated at the transcriptional level. S1 protection analyses performed with RNA extracted from cells grown in minimal(More)
  • Carmen Vargas, Montserrat Argandoña, Mercedes Reina-Bueno, Javier Rodríguez-Moya, Cristina Fernández-Aunión, Joaquín J Nieto
  • 2008
Chromohalobacter salexigens, a Gammaproteobacterium belonging to the family Halomonadaceae, shows a broad salinity range for growth. Osmoprotection is achieved by the accumulation of compatible solutes either by transport (betaine, choline) or synthesis (mainly ectoine and hydroxyectoine). Ectoines can play additional roles as nutrients and, in the case of(More)
  • Cristina Fernandez-Aunión, Thouraya Ben Hamouda, Fernando Iglesias-Guerra, Montserrat Argandoña, Mercedes Reina-Bueno, Joaquín J Nieto +2 others
  • 2010
BACKGROUND Associated with appropriate crop and soil management, inoculation of legumes with microbial biofertilizers can improve food legume yield and soil fertility and reduce pollution by inorganic fertilizers. Rhizospheric bacteria are subjected to osmotic stress imposed by drought and/or NaCl, two abiotic constraints frequently found in semi-arid(More)
  • Mercedes Reina-Bueno, Montserrat Argandoña, Joaquín J Nieto, Alba Hidalgo-García, Fernando Iglesias-Guerra, María J Delgado +1 other
  • 2012
The compatible solute trehalose is involved in the osmostress response of Rhizobium etli, the microsymbiont of Phaseolus vulgaris. In this work, we reconstructed trehalose metabolism in R. etli, and investigated its role in cellular adaptation and survival to heat and desiccation stress under free living conditions. Besides trehalose as major compatible(More)
X-linked adrenoleukodystrophy (X-ALD) is the most frequent peroxisomal disorder that is characterized by progressive demyelination of the white matter, adrenal insufficiency, and accumulation of very long-chain fatty acids in body fluid and tissues. This disorder is clinically heterogeneous with seven different phenotypes in male patients and five(More)
  • Maria J. Torres, Montserrat Argandoña, Carmen Vargas, Eulogio J. Bedmar, Hans-Martin Fischer, Socorro Mesa +1 other
  • 2014
Bradyrhizobium japonicum RegSR regulatory proteins belong to the family of two-component regulatory systems, and orthologs are present in many Proteobacteria where they globally control gene expression mostly in a redox-responsive manner. In this work, we have performed a transcriptional profiling of wild-type and regR mutant cells grown under anoxic(More)
Burkholderia phymatum strain GR01 is a recently reported common bean (Phaseolus vulgaris) symbiont isolated from nodules of plants grown in semi-arid soils in Morocco. The osmotolerance of B. phymatum GR01N under free-living and in symbiotic association with P. vulgaris was investigated in this study. The osmotolerance of B. phymatum GR01N was checked by(More)