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Mostrando ítems 21-30 de 30
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Pollen-specific aquaporins NIP4;1 and NIP4;2 are required for pollen development and pollination in Arabidopsis thaliana
Perez Di Giorgio, Juliana Andrea; Bienert, Gerd Patrick; Ayub, Nicolás Daniel; Yaneff, Agustín; Barberini, María Laura; Mecchia, Martín Alejandro; Amodeo, Gabriela; Soto, Gabriela Cinthia; Muschietti, Jorge Prometeo (2016)In flowers with dry stigmas, pollen development, pollination, and pollen tube growth require spatial and temporal regulation of water and nutrient transport. To better understand the molecular mechanisms involved in ... -
Prediction of aquaporin function by integrating evolutionary and functional analyses
Perez Di Giorgio, Juliana Andrea; Soto, Gabriela Cinthia; Alleva, Karina Edith; Jozefkowicz, Cintia; Amodeo, Gabriela; Muschietti, Jorge Prometeo; Ayub, Nicolás Daniel (Springer, 2014-02)Aquaporins (AQPs) are a family of channel proteins, which transport water and/or small solutes across cell membranes. AQPs are present in Bacteria, Eukarya, and Archaea. The classical AQP evolution paradigm explains the ... -
Pseudomonas fluorescens Pf-5 genome-wide mutant screen for resistance to the antimicrobial peptide alfalfa snakin-1
Ayub, Nicolás Daniel; Fox, Ana Romina; Garcia, Araceli Nora; Mozzicafreddo, Matteo; Cuccioloni, Massimiliano; Angeletti, Mauro; Pagano, Elba Maria; Soto, Gabriela Cynthia (Oxford University Press, 2015-01)Snakin-1, a peptide produced by higher plants, has broad-spectrum antibiotic activity, inhibiting organisms ranging from Bacteria to Eukaryotes. However, the mode of action against target organisms is poorly understood. ... -
Root hydraulic conductivity and adjustments in stomatal conductance: hydraulic strategy in response to salt stress in a halotolerant species
Vitali, Victoria Andrea; Bellati, Jorge; Soto, Gabriela Cynthia; Ayub, Nicolás Daniel; Amodeo, Gabriela (Oxford University Press, 2015-11)Recent advances at the molecular level are introducing a new scenario that needs to be integrated into the analysis of plant hydraulic properties. Although it is not yet clear to what extent this scenario alters the current ... -
Selective pressure against horizontally acquired prokaryotic genes as a driving force of plastid evolution
Llorente, Briardo; de Souza, Flavio S. J.; Soto, Gabriela Cynthia; Meyer, Cristian; Alonso, Guillermo D.; Flawia, Mirtha M.; Bravo Almonacid, Fernando Felix; Ayub, Nicolás Daniel; Rodríguez-Concepción, Manuel (Springer Nature, 2016-01)The plastid organelle comprises a high proportion of nucleus-encoded proteins that were acquired from different prokaryotic donors via independent horizontal gene transfers following its primary endosymbiotic origin. What ... -
Stable symbiotic nitrogen fixation under water-deficit field conditions by a stress-tolerant alfalfa microsymbiont and its complete genome sequence : Short communication
Jozefkowicz, Cintia; Brambilla, Silvina Maricel; Frare, Romina Alejandra; Stritzler, Margarita; Piccinetti, Carlos Fabian; Puente, Mariana Laura; Berini, Carolina Andrea; Reyes Perez, Pedro Jose; Soto, Gabriela Cinthia; Ayub, Nicolás Daniel (2017-12)We here characterized the stress-tolerant alfalfa microsymbiont Sinorhizobium meliloti B401. B401-treated plants showed high nitrogen fixation rates under humid and semiarid environments. The production of glycine betaine ... -
Synthetic multi-antibiotic resistant plasmids in plant-associated bacteria from agricultural soils
Brambilla, Silvina Maricel; Frare, Romina Alejandra; Stritzler, Margarita; Soto, Gabriela Cynthia; Berini, Carolina Andrea; Jozefkowicz, Cintia; Ayub, Nicolás Daniel (Elsevier, 2020-09)Objectives: Unlike higher organisms such as domestic animals and cultivated plants, which display a robust reproductive isolation and limited dispersal ability, microbes exhibit an extremely promiscuous gene flow and can ... -
The ammonium channel NOD26 is the evolutionary innovation that drives the emergence, consolidation, and dissemination of nitrogen-fixing symbiosis in angiosperms
Frare, Romina Alejandra; Ayub, Nicolás Daniel; Alleva, Karina Edith; Soto, Gabriela Cinthia (Springer, 2018-10)Increasing evidence indicates that N-fixing symbiosis has evolved several times in the N-fixing clade of angiosperms and that this evolution is driven by a single evolutionary innovation. However, the genetics of this ... -
Understanding the intracellular-to-extracellular localization switch of polyhydroxybutyrate polymerase in pseudomonas backgrounds as a microevolutionary process
Stritzler, Margarita; Berini, Carolina Andrea; Jozefkowicz, Cintia; Soto, Gabriela Cinthia; Ayub, Nicolás Daniel (Elsevier, 2018-11)After gene duplication, paralogous genes evolve independently, and consequently, the new proteins encoded by these duplicated genes are exposed to changes in their subcellular location. Although there are increasing evidence ... -
Whole-Genome Resequencing of Spontaneous Oxidative Stress-Resistant Mutants Reveals an Antioxidant System of Bradyrhizobium japonicum Involved in Soybean Colonization
Liebrenz, Karen Ivana; Gomez, Maria Cristina; Brambilla, Silvina Maricel; Frare, Romina Alejandra; Stritzler, Margarita; Maguire, Vanina; Ruiz, Oscar; Soldini, Diego Omar; Pascuan, Cecilia Gabriela; Soto, Gabriela Cynthia; Ayub, Nicolás Daniel (Springer, 2021-11)Soybean is the most inoculant-consuming crop in the world, carrying strains belonging to the extremely related species Bradyrhizobium japonicum and Bradyrhizobium diazoefficiens. Currently, it is well known that B. japonicum ...