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dc.contributor.author
Farias, Maria Eugenia
dc.contributor.author
Rascovan, Nicolas
dc.contributor.author
Toneatti, Diego
dc.contributor.author
Albarracín, Virginia Helena
dc.contributor.author
Flores, María Regina
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Poiré, Daniel Gustavo
dc.contributor.author
Collavino, Mónica Mariana
dc.contributor.author
Aguilar, Orlando Mario
dc.contributor.author
Vazquez, Martin Pablo
dc.contributor.author
Polerecky, Lubos
dc.date.available
2015-10-06T20:59:47Z
dc.date.issued
2013-01-07
dc.identifier.citation
Farias, Maria Eugenia; Rascovan, Nicolas; Toneatti, Diego; Albarracín, Virginia Helena; Flores, María Regina; et al.; The discovery of stromatolites developing at 3570 m above sea level in a high-altitude volcanic lake Socompa, Argentinean Andes; Public Library Of Science; Plos One; 8; 1; 7-1-2013; 1-15
dc.identifier.issn
1932-6203
dc.identifier.uri
http://hdl.handle.net/11336/2379
dc.description.abstract
We describe stromatolites forming at an altitude of 3570 m at the shore of a volcanic lake Socompa, Argentinean Andes. The water at the site of stromatolites formation is alkaline, hypersaline, rich in inorganic nutrients, very rich in arsenic, and warm (20?24C) due to a hydrothermal input. The stromatolites do not lithify, but form broad, rounded and low-domed bioherms dominated by diatom frustules and aragonite micro-crystals agglutinated by extracellular substances. In comparison to other modern stromatolites, they harbour an atypical microbial community characterized by highly abundant representatives of Deinococcus-Thermus, Rhodobacteraceae, Desulfobacterales and Spirochaetes. Additionally, a high proportion of the sequences that could not be classified at phylum level showed less than 80% identity to the best hit in the NCBI database, suggesting the presence of novel distant lineages. The primary production in the stromatolites is generally high and likely dominated by Microcoleus sp. Through negative phototaxis, the location of these cyanobacteria in the stromatolites is controlled by UV light, which greatly influences their photosynthetic activity. Diatoms, dominated by Amphora sp., are abundant in the anoxic, sulfidic and essentially dark parts of the stromatolites. Although their origin in the stromatolites is unclear, they are possibly an important source of anaerobically degraded organic matter that induces in situ aragonite precipitation. To the best of our knowledge, this is so far the highest altitude with documented actively forming stromatolites. Their generally rich, diverse and to a large extent novel microbial community likely harbours valuable genetic and proteomic reserves, and thus deserves active protection. Furthermore, since the stromatolites flourish in an environment characterized by a multitude of extremes, including high exposure to UV radiation, they can be an excellent model system for studying microbial adaptations under conditions that, at least in part, resemble those during the early phase of life evolution on Earth.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Public Library Of Science
dc.rights
info:eu-repo/semantics/openAccess
dc.rights
Atribución-NoComercial-CompartirIgual 2.5 Argentina (CC BY-NC-SA 2.5 AR)
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
Extreme Environments
dc.subject
High-Altitude Lakes
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Stromatolites
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Diversity
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Bioquímica y Biología Molecular
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Ciencias Biológicas
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CIENCIAS NATURALES Y EXACTAS
dc.title
The discovery of stromatolites developing at 3570 m above sea level in a high-altitude volcanic lake Socompa, Argentinean Andes
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2016-03-30 10:35:44.97925-03
dc.journal.volume
8
dc.journal.number
1
dc.journal.pagination
1-15
dc.journal.pais
Estados Unidos
dc.journal.ciudad
San Francisco
dc.description.fil
Fil: Farias, Maria Eugenia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Tucumán. Planta Piloto de Procesos Industriales Microbiológicos (i); Argentina; Laboratorio de Investigaciones Microbiológicas de Lagunas Andinas - LIMLA; Argentina;
dc.description.fil
Fil: Rascovan, Nicolas. Instituto de Agrobiotecnología de Rosario; Argentina;
dc.description.fil
Fil: Toneatti, Diego. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Tucumán. Planta Piloto de Procesos Industriales Microbiológicos (i); Argentina; Laboratorio de Investigaciones Microbiológicas de Lagunas Andinas - LIMLA; Argentina;
dc.description.fil
Fil: Albarracín, Virginia Helena. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Tucumán. Planta Piloto de Procesos Industriales Microbiológicos (i); Argentina; Universidad Nacional de Tucumán. Facultad de Ciencias Naturales e Instituto Miguel Lillo; Argentina; Max-Planck Institute for Chemical Energy Conversion, Mülheim an der Ruhr; Alemania;
dc.description.fil
Fil: Flores, María Regina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Tucumán. Planta Piloto de Procesos Industriales Microbiológicos (i); Argentina; Laboratorio de Investigaciones Microbiológicas de Lagunas Andinas - LIMLA; Argentina;
dc.description.fil
Fil: Poiré, Daniel Gustavo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Cientifico Tecnológico La Plata; Argentina;
dc.description.fil
Fil: Collavino, Mónica Mariana. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico La Plata. Instituto de Biotecnología y Biología Molecular; Argentina;
dc.description.fil
Fil: Aguilar, Orlando Mario. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico La Plata. Instituto de Biotecnología y Biología Molecular; Argentina;
dc.description.fil
Fil: Vazquez, Martin Pablo. Instituto de Agrobiotecnología de Rosario; Argentina;
dc.description.fil
Fil: Polerecky, Lubos. Max-Planck Institute for Marine Microbiology, Bremen; Alemania;
dc.journal.title
Plos One
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/http://journals.plos.org/plosone/article?id=10.1371/journal.pone.0053497
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1371/journal.pone.0053497


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