• C1 compounds shape the microbial community of an abandoned century-old oil exploration well 

      Rojas Gätjens, Diego; Fuentes Schweizer, Paola; Rojas Jiménez, Keilor Osvaldo; Pérez Pantoja, Danilo; Avendaño Vega, Roberto; Alpízar Mena, Randall; Coronado Ruiz, Carolina; Chavarría Vargas, Max (2020)
      The search for microorganisms that degrade hydrocarbons is highly relevant because it enables the bioremediation of these substances cheaply and without dangerous by-products. In this work, we studied the microbial communities ...
    • From dirt to industrial applications: Pseudomonas putida as a Synthetic Biology chassis for hosting harsh biochemical reactions 

      Nikel Mayer, Pablo Iván; Chavarría Vargas, Max; Danchin, Antoine; de Lorenzo, Víctor (2016-10)
      The soil bacterium Pseudomonas putida is endowed with a central carbon metabolic network capable of fulfilling high demands of reducing power. This situation arises from a unique metabolic architecture that encompasses the ...
    • Identificación de genes y proteínas relacionados con la producción de nanopartículas de selenio en Pseudomonas putida KT2440 

      Avendaño Vega, Roberto (2019)
      Existen múltiples bacterias que pueden metabolizar selenito a selenio, no obstante, en muchos casos no se conocen bien los mecanismos mediante los cuales estos microorganismos llevan a cabo este proceso, siendo Pseudomonas ...
    • Interplay of the PtsN (EIIANtr) protein of Pseudomonas putida with its target sensor kinase KdpD 

      Deuschle, M.; Limbrunner, S.; Rother, D.; Wahler, S.; Chavarría Vargas, Max; de Lorenzo, Víctor; Kremling, Andreas; Pflüger Grau, Katharina (2015-08-27)
      The nitrogen phosphotransferase system (PTSNtr) of Pseudomonas putida is a multi-component regulatory device that participates in controlling a variety of physiological processes in a post-translational fashion. A general ...
    • Production of selenium nanoparticles in Pseudomonas putida KT2440 

      Avendaño Vega, Roberto; Chaves Solano, Nefertiti; Fuentes Schweizer, Paola; Sánchez Chacón, Ethel; Jiménez, Jose Ignacio; Chavarría Vargas, Max (2016)
      Selenium (Se) is an essential element for the cell that has multiple applications in medicine and technology; microorganisms play an important role in Se transformations in the environment. Here we report the previously ...
    • Quantitative Physiology Approaches to Understand and Optimize Reducing Power Availability in Environmental Bacteria 

      Nikel Mayer, Pablo Iván; Chavarría Vargas, Max (2015-06-04)
      The understanding of how carbon fluxes are distributed through a metabolic network offers an overview of the pathways that a given microorganism uses to produce energy, reducing power, and biomass. These invaluable data ...
    • Redox stress reshapes carbon fluxes of Pseudomonas putida for cytosolic glucose oxidation and NADPH generation 

      Nikel Mayer, Pablo Iván; Fuhrer, Tobias; Chavarría Vargas, Max; Sánchez Pascuala, Alberto; Sauer, Uwe; de Lorenzo, Víctor (2020)
      The soil bacterium and metabolic engineering platform Pseudomonas putida tolerates high levels of endogenous and exogenous oxidative stress, yet the ultimate reason of such property remains unknown. To shed light on this ...
    • Streptomyces sp. M54: an actinobacteria associated with a neotropical social wasp with high potential for antibiotic production 

      Matarrita Carranza, Bernal; Murillo Cruz, Catalina; Avendaño Vega, Roberto; Ríos Marín, María Isabel; Chavarría Vargas, Max; Gómez Calvo, María Luisa; Tamayo Castillo, Giselle; Araya Barrantes, Juan José; Pinto Tomás, Adrián A. (2021-01-17)
      Abstract Streptomyces symbionts in insects have shown to be a valuable source of new antibiotics. Here, we report the genome sequence and the potential for antibiotic production of ‘‘Streptomyces sp. M54’’, an Actinobacteria ...
    • Temperature and elemental sulfur shape microbial communities in two extremely acidic aquatic volcanic environments 

      Rojas Gätjens, Diego; Arce Rodríguez, Alejandro; Puente Sánchez, Fernando; Avendaño Vega, Roberto; Libby Hernández, Eduardo; Mora Amador, Raúl Alberto; Rojas Jiménez, Keilor Osvaldo; Fuentes Schweizer, Paola; Pieper, Dietmar H.; Chavarría Vargas, Max (2021)
      Aquatic environments of volcanic origin provide an exceptional opportunity to study the adaptations of microbial communities to early planet life conditions such as high temperatures, high metal concentrations, and low pH. ...
    • Two new cellulolytic fungal species isolated from a 19th-century art collection 

      Coronado Ruiz, Carolina; Avendaño Vega, Roberto; Escudero Leyva, Efraín; Conejo Barboza, Geraldine; Chaverri Echandi, Priscila; Chavarría Vargas, Max (2018)
      The archive of the Universidad de Costa Rica maintains a nineteenth-century French collection of drawings and lithographs in which the biodeterioration by fungi is rampant. Because of nutritional conditions in which these ...
    • Visualizing the invisible: class excursions to ignite children’s enthusiasm for microbes 

      McGenity, Terry J.; Gessesse, Amare; Hallsworth, John E.; García Cela, Esther; Verheecke Vaessen, Carol; Wang, Fengping; Chavarría Vargas, Max; Haggblom, Max M.; Molin, Søren; Danchin, Antoine; Smid, Eddy J.; Lood, Cédric; Cockell, Charles S.; Whitby, Corinne; Liu, Shuang‐Jiang; Keller, Nancy P.; Stein, Lisa Y.; Bordenstein, Seth R.; Lal, Rup; Nunes, Olga C.; Gram, Lone; Singh, Brajesh K.; Webster, Nicole S.; Morris, Cindy; Sivinski, Sharon; Bindschedler, Saskia; Junier, Pilar; Antunes, André; Baxter, Bonnie K.; Scavone, Paola; Timmis, Kenneth N. (2020)
      We have recently argued that, because microbes have pervasive – often vital – influences on our lives, and that therefore their roles must be taken into account in many of the decisions we face, society must become ...