Search Results - "Saavedra, Claudia P."

The ArcAB two-component regulatory system promotes resistance to reactive oxygen species and systemic infection by Salmonella Typhimurium by Pardo-Esté, Coral, Hidalgo, Alejandro A, Aguirre, Camila, Briones, Alan C, Cabezas, Carolina E, Castro-Severyn, Juan, Fuentes, Juan A, Opazo, Cecilia M, Riedel, Claudia A, Otero, Carolina, Pacheco, Rodrigo, Valvano, Miguel A, Saavedra, Claudia P

“…Salmonella enterica Serovar Typhimurium (S. Typhimurium) is an intracellular bacterium that overcomes host immune system barriers for successful infection. The…”
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Influence of Physical-Chemical Soil Parameters on Microbiota Composition and Diversity in a Deep Hyperarid Core of the Atacama Desert by Fuentes, Bárbara, Choque, Alessandra, Gómez, Francisco, Alarcón, Jaime, Castro-Nallar, Eduardo, Arenas, Franko, Contreras, Daniel, Mörchen, Ramona, Amelung, Wulf, Knief, Claudia, Moradi, Ghazal, Klumpp, Erwin, Saavedra, Claudia P, Prietzel, Jörg, Klysubun, Wantana, Remonsellez, Francisco, Bol, Roland

“…The extreme environmental conditions and lack of water on the soil surface in hyperarid deserts hamper microbial life, allowing only highly specialized…”
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Transcriptional regulator MarT negatively regulates MarT-regulated motility gene I, a new gene involved in invasion and virulence of Salmonella enterica by Jerez, Sebastián A, Mora, Aracely Y, Millanao, Ana R, Saavedra, Claudia P, Bucarey, Sergio A, Mora, Guido C, Villagra, Nicolás A, Hidalgo, Alejandro A

“…The speciation of occurred by acquisition of genomic islands from other bacterial species and continued to diverge into subspecies and serovars with diferent…”
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Mobile genetic elements drive the multidrug resistance and spread of Salmonella serotypes along a poultry meat production line by Krüger, Gabriel I, Pardo-Esté, Coral, Zepeda, Phillippi, Olivares-Pacheco, Jorge, Galleguillos, Nicolas, Suarez, Marcia, Castro-Severyn, Juan, Alvarez-Thon, Luis, Tello, Mario, Valdes, Jorge H, Saavedra, Claudia P

“…The presence of mobile genetic elements in isolated from a chicken farm constitutes a potential risk for the appearance of emerging bacteria present in the…”
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Biochemical, genomic and structural characteristics of the Acr3 pump in Exiguobacterium strains isolated from arsenic-rich Salar de Huasco sediments by Castro-Severyn, Juan, Pardo-Esté, Coral, Araya-Durán, Ingrid, Gariazzo, Valentina, Cabezas, Carolina, Valdés, Jorge, Remonsellez, Francisco, Saavedra, Claudia P.

“…Arsenic is a highly toxic metalloid of major concern for public safety. However, microorganisms have several resistance mechanisms, particularly the expression…”
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Characterization and Salt Response in Recurrent Halotolerant Exiguobacterium sp. SH31 Isolated From Sediments of Salar de Huasco, Chilean Altiplano by Remonsellez, Francisco, Castro-Severyn, Juan, Pardo-Esté, Coral, Aguilar, Pablo, Fortt, Jonathan, Salinas, Cesar, Barahona, Sergio, León, Joice, Fuentes, Bárbara, Areche, Carlos, Hernández, Klaudia L, Aguayo, Daniel, Saavedra, Claudia P

“…Poly-extremophiles microorganisms have the capacity to inhabit hostile environments and can survive several adverse conditions that include as variations in…”
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Living to the High Extreme: Unraveling the Composition, Structure, and Functional Insights of Bacterial Communities Thriving in the Arsenic-Rich Salar de Huasco Altiplanic Ecosystem by Castro-Severyn, Juan, Pardo-Esté, Coral, Mendez, Katterinne N, Fortt, Jonathan, Marquez, Sebastian, Molina, Franck, Castro-Nallar, Eduardo, Remonsellez, Francisco, Saavedra, Claudia P

“…Microbial communities inhabiting extreme environments such as Salar de Huasco (SH) in northern Chile are adapted to thrive while exposed to several abiotic…”
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Inactivation of Glutamine Synthetase-Coding Gene glnA Increases Susceptibility to Quinolones Through Increasing Outer Membrane Protein F in Salmonella enterica Serovar Typhi by Millanao, Ana R, Mora, Aracely Y, Saavedra, Claudia P, Villagra, Nicolás A, Mora, Guido C, Hidalgo, Alejandro A

“…Ciprofloxacin is the choice treatment for infections caused by Typhi, however, reduced susceptibility to ciprofloxacin has been reported for this pathogen…”
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Rhizospheric bacteria from the Atacama Desert hyper-arid core: cultured community dynamics and plant growth promotion by Castro-Severyn, Juan, Fortt, Jonathan, Sierralta, Mariela, Alegria, Paola, Donoso, Gabriel, Choque, Alessandra, Avellaneda, Andrea M, Pardo-Esté, Coral, Saavedra, Claudia P, Stoll, Alexandra, Remonsellez, Francisco

“…The Atacama Desert is the oldest and driest desert on Earth, encompassing great temperature variations, high ultraviolet radiation, drought, and high salinity,…”
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Genomic Variation and Arsenic Tolerance Emerged as Niche Specific Adaptations by Different Exiguobacterium Strains Isolated From the Extreme Salar de Huasco Environment in Chilean – Altiplano by Castro-Severyn, Juan, Pardo-Esté, Coral, Mendez, Katterinne N., Morales, Naiyulin, Marquez, Sebastián L., Molina, Franck, Remonsellez, Francisco, Castro-Nallar, Eduardo, Saavedra, Claudia P.

“…Polyextremophilic bacteria can thrive in environments with multiple stressors such as the Salar de Huasco (SH). Microbial communities in SH are exposed to low…”
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Comparative Genomics Analysis of a New Exiguobacterium Strain from Salar de Huasco Reveals a Repertoire of Stress-Related Genes and Arsenic Resistance by Castro-Severyn, Juan, Remonsellez, Francisco, Valenzuela, Sandro L, Salinas, Cesar, Fortt, Jonathan, Aguilar, Pablo, Pardo-Esté, Coral, Dorador, Cristina, Quatrini, Raquel, Molina, Franck, Aguayo, Daniel, Castro-Nallar, Eduardo, Saavedra, Claudia P

“…The Atacama Desert hosts diverse ecosystems including salt flats and shallow Andean lakes. Several heavy metals are found in the Atacama Desert, and…”
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Characterization of biofilm formation by Exiguobacterium strains in response to arsenic exposure by Pavez, Valentina B, Pacheco, Nicolás, Castro-Severyn, Juan, Pardo-Esté, Coral, Álvarez, Javiera, Zepeda, Phillippi, Krüger, Gabriel, Gallardo, Karem, Melo, Francisco, Vernal, Rolando, Aranda, Carlos, Remonsellez, Francisco, Saavedra, Claudia P

“…In this work, we characterized the composition, structure, and functional potential for biofilm formation of strains isolated from the Salar de Huasco in Chile…”
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Arsenic Response of Three Altiplanic Exiguobacterium Strains With Different Tolerance Levels Against the Metalloid Species: A Proteomics Study by Castro-Severyn, Juan, Pardo-Esté, Coral, Sulbaran, Yoelvis, Cabezas, Carolina, Gariazzo, Valentina, Briones, Alan, Morales, Naiyulin, Séveno, Martial, Decourcelle, Mathilde, Salvetat, Nicolas, Remonsellez, Francisco, Castro-Nallar, Eduardo, Molina, Franck, Molina, Laurence, Saavedra, Claudia P.

“…Exiguobacterium is a polyextremophile bacterial genus with a physiology that allows it to develop in different adverse environments. The Salar de Huasco is one…”
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Hypochlorous acid and hydrogen peroxide-induced negative regulation of Salmonella enterica serovar Typhimurium ompW by the response regulator ArcA by Morales, Eduardo H, Calderón, Iván L, Collao, Bernardo, Gil, Fernando, Porwollik, Steffen, McClelland, Michael, Saavedra, Claudia P

“…Hydrogen peroxide (H2O2) and hypochlorous acid (HOCl) are reactive oxygen species that are part of the oxidative burst encountered by Salmonella enterica…”
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Correction: The ArcAB two-component regulatory system promotes resistance to reactive oxygen species and systemic infection by Salmonella Typhimurium by Pardo-Esté, Coral, Hidalgo, Alejandro A, Aguirre, Camila, Inostroza, Ana, Briones, Alan C, Cabezas, Carolina E, Castro-Severyn, Juan, Fuentes, Juan A, Opazo, Cecilia M, Riedel, Claudia A, Otero, Carolina, Pacheco, Rodrigo, Valvano, Miguel A, Saavedra, Claudia P

“…[This corrects the article DOI: 10.1371/journal.pone.0203497.]…”
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Analysis of microbiota-host communication mediated by butyrate in Atlantic salmon by Vargas, Rodrigo A., Soto-Aguilera, Sarita, Parra, Mick, Herrera, Sebastian, Santibañez, Alvaro, Kossack, Camila, Saavedra, Claudia P., Mora, Oscar, Pineda, Mauricio, Gonzalez, Oscar, Gonzalez, Alex, Maisey, Kevin, Torres-Maravilla, Edgar, Bermúdez-Humarán, Luis G., Suárez-Villota, Elkin Y., Tello, Mario

“…Butyrate is a microbiota-produced metabolite, sensed by host short-chain fatty acid receptors FFAR2 (Gpr43), FFAR3 (Gpr41), HCAR2 (Gpr109A), and Histone…”
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The Transcription Factor ArcA Modulates Salmonella’s Metabolism in Response to Neutrophil Hypochlorous Acid-Mediated Stress by Pardo-Esté, Coral, Castro-Severyn, Juan, Krüger, Gabriel I., Cabezas, Carolina Elizabeth, Briones, Alan Cristóbal, Aguirre, Camila, Morales, Naiyulin, Baquedano, Maria Soledad, Sulbaran, Yoelvis Noe, Hidalgo, Alejandro A., Meneses, Claudio, Poblete-Castro, Ignacio, Castro-Nallar, Eduardo, Valvano, Miguel A., Saavedra, Claudia P.

“…Salmonella Typhimurium, a bacterial pathogen with high metabolic plasticity, can adapt to different environmental conditions; these traits enhance its…”
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Participation of the Salmonella OmpD porin in the infection of RAW264.7 macrophages and BALB/c mice by Ipinza, Francisco, Collao, Bernardo, Monsalva, Debbie, Bustamante, Victor H, Luraschi, Roberto, Alegría-Arcos, Melissa, Almonacid, Daniel E, Aguayo, Daniel, Calderón, Iván L, Gil, Fernando, Santiviago, Carlos A, Morales, Eduardo H, Calva, Edmundo, Saavedra, Claudia P

“…Salmonella Typhimurium is the etiological agent of gastroenteritis in humans and enteric fever in mice. Inside these hosts, Salmonella must overcome hostile…”
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Catalases are NAD(P)H-dependent tellurite reductases by Calderón, Iván L, Arenas, Felipe A, Pérez, José Manuel, Fuentes, Derie E, Araya, Manuel A, Saavedra, Claudia P, Tantaleán, Juan C, Pichuantes, Sergio E, Youderian, Philip A, Vásquez, Claudio C

“…Reactive oxygen species damage intracellular targets and are implicated in cancer, genetic disease, mutagenesis, and aging. Catalases are among the key…”
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Exploring the Influence of Small-Scale Geographical and Seasonal Variations Over the Microbial Diversity in a Poly-extreme Athalosaline Wetland by Pardo-Esté, Coral, Leiva, Sergio Guajardo, Remonsellez, Francisco, Castro-Nallar, Eduardo, Castro-Severyn, Juan, Saavedra, Claudia P.

“…Microorganisms are the most diverse life form on the planet and are critical for maintaining the geochemical cycles, especially in extreme environments…”
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