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dc.contributor.author
Albarracín, Virginia Helena
dc.contributor.author
Kurth, Daniel German
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Ordoñez, Omar Federico
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Belfiore, Carolina
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Luccini, Eduardo Alfredo
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Salum, Graciela Marisa
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Piacentini, Ruben Dario Narciso
dc.contributor.author
Farias, Maria Eugenia
dc.date.available
2017-12-13T18:39:26Z
dc.date.issued
2015-12
dc.identifier.citation
Albarracín, Virginia Helena; Kurth, Daniel German; Ordoñez, Omar Federico; Belfiore, Carolina; Luccini, Eduardo Alfredo; et al.; High-Up: A Remote Reservoir of Microbial Extremophiles in Central Andean Wetlands; Frontiers Research Foundation; Frontiers in Microbiology; 6; 12-2015; 1-16
dc.identifier.issn
1664-302X
dc.identifier.uri
http://hdl.handle.net/11336/30502
dc.description.abstract
The Central Andes region displays unexplored ecosystems of shallow lakes and salt flats at mean altitudes of 3700 m. Being isolated and hostile, these so-called “High-Altitude Andean Lakes” (HAAL) are pristine and have been exposed to little human influence. HAAL proved to be a rich source of microbes showing interesting adaptations to life in extreme settings (poly-extremophiles) such as alkalinity, high concentrations of arsenic and dissolved salts, intense dryness, large daily ambient thermal amplitude, and extreme solar radiation levels. This work reviews HAAL microbiodiversity, taking into account different microbial niches, such as plankton, benthos, microbial mats and microbialites. The modern stromatolites and other microbialites discovered recently at HAAL are highlighted, as they provide unique modern—though quite imperfect—analogs of environments proxy for an earlier time in Earth's history (volcanic setting and profuse hydrothermal activity, low atmospheric O2 pressure, thin ozone layer and high UV exposure). Likewise, we stress the importance of HAAL microbes as model poly-extremophiles in the study of the molecular mechanisms underlying their resistance ability against UV and toxic or deleterious chemicals using genome mining and functional genomics. In future research directions, it will be necessary to exploit the full potential of HAAL poly-extremophiles in terms of their biotechnological applications. Current projects heading this way have yielded detailed molecular information and functional proof on novel extremoenzymes: i.e., DNA repair enzymes and arsenic efflux pumps for which medical and bioremediation applications, respectively, are envisaged. But still, much effort is required to unravel novel functions for this and other molecules that dwell in a unique biological treasure despite its being hidden high up, in the remote Andes.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Frontiers Research Foundation
dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by/2.5/ar/
dc.subject
Extremophiles
dc.subject
Astrobiology
dc.subject
Microbes
dc.subject
Microbialites
dc.subject
Stromatolites
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Central Andes
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Genomes
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Otras Ciencias Biológicas
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Ciencias Biológicas
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CIENCIAS NATURALES Y EXACTAS
dc.title
High-Up: A Remote Reservoir of Microbial Extremophiles in Central Andean Wetlands
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2017-11-10T14:24:42Z
dc.journal.volume
6
dc.journal.pagination
1-16
dc.journal.pais
Suiza
dc.journal.ciudad
Basilea
dc.description.fil
Fil: Albarracín, Virginia Helena. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tucuman. Planta Piloto de Procesos Industriales Microbiologicos; Argentina
dc.description.fil
Fil: Kurth, Daniel German. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tucuman. Planta Piloto de Procesos Industriales Microbiologicos; Argentina
dc.description.fil
Fil: Ordoñez, Omar Federico. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tucuman. Planta Piloto de Procesos Industriales Microbiologicos; Argentina
dc.description.fil
Fil: Belfiore, Carolina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tucuman. Planta Piloto de Procesos Industriales Microbiologicos; Argentina
dc.description.fil
Fil: Luccini, Eduardo Alfredo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba; Argentina. Pontificia Universidad Católica Argentina "Santa María de los Buenos Aires". Facultad de Química e Ingeniería-Rosario; Argentina
dc.description.fil
Fil: Salum, Graciela Marisa. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Rosario. Instituto de Física de Rosario. Universidad Nacional de Rosario. Instituto de Física de Rosario; Argentina
dc.description.fil
Fil: Piacentini, Ruben Dario Narciso. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Rosario. Instituto de Física de Rosario. Universidad Nacional de Rosario. Instituto de Física de Rosario; Argentina. Universidad Nacional de Rosario. Facultad de Ciencias Exactas, Ingeniería y Agrimensura; Argentina. Universidad Tecnológica Nacional. Facultad Regional Concepción del Uruguay; Argentina
dc.description.fil
Fil: Farias, Maria Eugenia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tucuman. Planta Piloto de Procesos Industriales Microbiologicos; Argentina
dc.journal.title
Frontiers in Microbiology
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/http://journal.frontiersin.org/article/10.3389/fmicb.2015.01404
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/https://doi.org/10.3389/fmicb.2015.01404
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