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  Unique clusters of Archaea in Salar de Huasco, an athalassohaline evaporitic basin of the Chilean Altiplano

Dorador, C., Vila, I., Remonsellez, F., Imhoff, J. F., & Witzel, K.-P. (2010). Unique clusters of Archaea in Salar de Huasco, an athalassohaline evaporitic basin of the Chilean Altiplano. FEMS Microbiology Ecology, 73(2), 291-302. doi:10.1111/j.1574-6941.2010.00891.x.

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 Urheber:
Dorador, Cristina1, Autor           
Vila, Irma, Autor
Remonsellez, Francisco, Autor
Imhoff, Johannes F., Autor
Witzel, Karl-Paul1, Autor           
Affiliations:
1Department Ecophysiology, Max Planck Institute for Limnology, Max Planck Institute for Evolutionary Biology, Max Planck Society, ou_976547              

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Schlagwörter: archaeal diversity; 16S rRNA gene; archaeal amoA gene; Andean Altiplano; Chile
 Zusammenfassung: Analyses of clone libraries from water and sediments of different sites from Salar de Huasco, a high-altitude athalassohaline wetland in the Chilean Altiplano, revealed the presence of five unique clusters of uncultured Archaea that have not been previously reported or specifically assigned. These sequences were distantly related (83-96% sequence identity) to a limited number of other clone sequences and revealed no identity to cultured Archaea. The abundance of Archaea and Bacteria was estimated using qPCR and community composition was examined through the construction of clone libraries of archaeal 16S rRNA gene. Archaea were found to be dominant over Bacteria in sediments from two saline sites (sites H4: 6.31 x 10(4) and site H6: 1.37 x 10(4) mu S cm(-1)) and in one of the water samples (freshwater from site H0: 607 mu S cm(-1)). Euryarchaeotal sequences were more abundant than crenarchaeotal sequences. Many of the clone sequences (52%) were similar to uncultured archaeal groups found in marine ecosystems having identity values between 99% and 97%. A major fraction of the sequences (40%) were members of Methanobacteria, while others were included in the Marine Benthic Groups B and D, the Miscellaneous Crenarchaeotic Group, the Terrestrial Miscellaneous Euryarchaeotal Group, Marine Group I and Halobacteria. The presence of uncultured archaeal groups in Salar de Huasco extends their known distribution in inland waters, providing new clues about their possible function in the environment.

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Sprache(n): eng - English
 Datum: 2010-08
 Publikationsstatus: Erschienen
 Seiten: -
 Ort, Verlag, Ausgabe: -
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 Identifikatoren: eDoc: 480023
DOI: 10.1111/j.1574-6941.2010.00891.x
Anderer: 2764/S 39096
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Titel: FEMS Microbiology Ecology
  Alternativer Titel : FEMS Microbiol Ecol
Genre der Quelle: Zeitschrift
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Seiten: - Band / Heft: 73 (2) Artikelnummer: - Start- / Endseite: 291 - 302 Identifikator: ISSN: 0168-6496 (print)
ISSN: 1574-6941 (online)