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dc.creatorRojas Gätjens, Diego
dc.creatorArce Rodríguez, Alejandro
dc.creatorPuente Sánchez, Fernando
dc.creatorAvendaño Vega, Roberto
dc.creatorLibby Hernández, Eduardo
dc.creatorConejo Barboza, Geraldine
dc.creatorMora Amador, Raúl Alberto
dc.creatorRojas Jiménez, Keilor
dc.creatorPieper, Dietmar H.
dc.creatorChavarría Vargas, Max
dc.description.abstractIn this work, we characterize the geochemistry and microbial community of Bajo las Peñas, a neutral (pH 6.5-7.4), hot spring (T = 62.0-68.0°C) located near Turrialba Volcano, Costa Rica. The microbiota at its two sources belongs mainly to the family Aquificae, comprising OTUs closely related to the genera Sulfurihydrogenibium, Thermosulfidibacter, Thermodesulfovibrio and Thermocrinis which is consistent with the presence of moderate levels of sulfate (243-284 mg/L) along the stream. We determined a dramatic shift in the microbial community just a few meters downstream of the sources of the hot spring (15-20 meters), with a change from sulfur related chemoautotrophic (e.g. Sulfurihydrogenibium and an OTU closely related to Thermodesulfovibrio) to chemoheterotrophic prokaryotes (e.g. Meiothermus, Nitrososphaera, Thermoflexus, Thermus). Thus, in this neutral hot spring, the first level of the trophic chain is associated with photosynthesis as well other anaerobic CO2 fixing bacteria. Then, thermotolerant chemoheterotrophic bacteria colonize the environment to degrade organic matter and use fermentative products from the first level of the trophic chain. Our data demonstrate how quickly the microbial community of an ecosystem can change in response to environmental variables and sheds light on the microbial ecology of less common circumneutral pH hot springs.es_ES
dc.description.sponsorshipUniversidad de Costa Rica/[809-B6-524]/UCR/Costa Ricaes_ES
dc.description.sponsorshipMinisterio de Ciencia, Tecnología y Telecomunicaciones/[FI-255B-17]/MICITT/Costa Ricaes_ES
dc.description.sponsorshipMinisterio Federal de Educación e Investigación/[FI-255B-17]/BMBF/Alemaniaes_ES
dc.description.sponsorshipEuropean Research Council/[ERC250350-IPBSL]/ERC/Unión Europeaes_ES
dc.description.sponsorshipMinisterio de Economía y Competitividad/[CTM2016-80095-C2-1-R]/MINECO/Españaes_ES
dc.sourceBioRxiv, pp.1-29es_ES
dc.subjectHot Springes_ES
dc.subjectCosta Ricaes_ES
dc.subjectMicrobial mates_ES
dc.titleRapid shift in microbial community structure in a neutral hydrothermal hot spring from Costa Ricaes_ES
dc.description.procedenceUCR::Vicerrectoría de Investigación::Unidades de Investigación::Ciencias Básicas::Centro de Investigaciones en Productos Naturales (CIPRONA)es_ES
dc.description.procedenceUCR::Vicerrectoría de Docencia::Ciencias Básicas::Facultad de Ciencias::Escuela de Químicaes_ES
dc.description.procedenceUCR::Vicerrectoría de Docencia::Ciencias Básicas::Facultad de Ciencias::Escuela Centroamericana de Geologíaes_ES
dc.description.procedenceUCR::Vicerrectoría de Docencia::Ciencias Básicas::Facultad de Ciencias::Escuela de Biologíaes_ES

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