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Mostrando ítems 1-9 de 9
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Cooperativity in proton sensing by PIP aquaporins
Vitali, Victoria Andrea; Jozefkowicz, Cintia; Canessa Fortuna, Agustina; Soto, Gabriela Cinthia; Gonzalez Flecha, Francisco Luis; Alleva, Karina Edith (Wiley, 2019-03)One of the most intriguing properties of plasma membrane intrinsic protein (PIP) aquaporins (AQPs) is their ability to modulate water transport by sensing different levels of intracellular pH through the assembly of homo‐ ... -
Genome-wide data (ChIP-seq) enabled identification of cell wall-related and aquaporin genes as targets of tomato ASR1, a drought stress-responsive transcription factor
Ricardi, Martiniano María; González, Rodrigo Matías; Silin, Zhong; Dominguez, Pia Guadalupe; Duffy, Tomas; Turjanski, Pablo Guillermo; Salgado Salter, Juan David; Alleva, Karina Edith; Carrari, Fernando; Giovannoni, James J.; Estevez, Jose Manuel; Iusem, Norberto Daniel (BMC, 2014-01)Background: Identifying the target genes of transcription factors is important for unraveling regulatory networks in all types of organisms. Our interest was precisely to uncover the spectrum of loci regulated by a widespread ... -
Major cereal crops benefit from biological nitrogen fixation when inoculated with the nitrogen-fixing bacterium Pseudomonas protegens Pf-5 X940
Fox, Ana Romina; Soto, Gabriela Cinthia; Valverde, Claudio Fabián; Russo, Daniela Marta; Lagares, Antonio; Zorreguieta, Ángeles; Pascuan, Cecilia Gabriela; Frare, Romina Alejandra; Mercado Blanco, Jesús; Dixon, Ray; Ayub, Nicolás Daniel; Alleva, Karina Edith (2016)A main goal of biological nitrogen fixation research has been to expand the nitrogen-fixing ability to major cereal crops. In this work, we demonstrate the use of the efficient nitrogen-fixing rhizobacterium Pseudomonas ... -
mRNA biogenesis-related helicase eIF4AIII from Arabidopsis thaliana is an important factor for abiotic stress adaptation
Pascuan, Cecilia Gabriela; Frare, Romina Alejandra; Alleva, Karina Edith; Ayub, Nicolás Daniel; Soto, Gabriela Cinthia (2016)Similar to other plant species, Arabidopsis has a huge repertoire of predicted helicases, including the eIF4AIII factor, a putative component of the exon junction complex related to mRNA biogenesis. In this article, we ... -
PIP aquaporin pH sensing is regulated by the length and charge of the C-terminal region
Scochera, Florencia; Zerbetto De Palma, Gerardo; Canessa Fortuna, Agustina; Chevriau, Jonathan; Toriano, Roxana; Soto, Gabriela Cynthia; Zeida, Ari; Alleva, Karina Edith (Wiley, 2021-07)Plant PIP aquaporins play a central role in controlling plant water status. The current structural model for PIP pH-gating states that the main pH sensor is located in loopD and that all the mobile cytosolic elements ... -
Pip water transport and its pH dependence are regulated by tetramer stoichiometry
Jozefkowicz, Cintia; Sigaut, Lorena; Scochera, Florencia; Soto, Gabriela Cinthia; Ayub, Nicolás Daniel; Pietrasanta, Lía Isabel; Amodeo, Gabriela; Gonzalez Flecha, Francisco Luis; Alleva, Karina Edith (2016)Many plasma membrane channels form oligomeric assemblies, and heterooligomerization has been described as a distinctive feature of some protein families. In the particular case of plant plasma membrane aquaporins (PIPs), ... -
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 ... -
Retrotransposon and CRISPR/Cas9‑mediated knockout of NOD26 impairs the legume‑rhizobia symbiosis
Frare, Romina Alejandra; Stritzler, Margarita; Gomez, Maria Cristina; Tajima, Hiromi; Pascuan, Cecilia Gabriela; López Fernández, María Paula; Bottero, Ana Emilia; Nikel, Pablo I.; Alleva, Karina Edith; Ayub, Nicolás Daniel; Blumwald, Eduardo; Soto, Gabriela Cynthia (Springer, 2022-07)The multifunctional channel NOD26, identified and extensively studied (both biochemically and biophysically) in soybean, is a major protein component of the symbiosome membrane. The water and ammonia transport activities ... -
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 ...