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  Bacterial and archaeal diversity in high altitude wetlands of the Chilean Altiplano

Dorador, C., Vila, I., Witzel, K.-P., & Imhoff, J. F. (2013). Bacterial and archaeal diversity in high altitude wetlands of the Chilean Altiplano. Fundamental and Applied Limnology Archiv für Hydrobiologie, 182(2), 135-159. doi:10.1127/1863-9135/2013/0393.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-000E-FF34-0 Version Permalink: http://hdl.handle.net/11858/00-001M-0000-000E-FF35-E
Genre: Journal Article

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 Creators:
Dorador, Cristina1, Author              
Vila, Irma, Author
Witzel, Karl-Paul1, Author              
Imhoff, Johannes F., Author
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1Department Ecophysiology, Max Planck Institute for Limnology, Max Planck Institute for Evolutionary Biology, Max Planck Society, ou_976547              

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Free keywords: microbial diversity; 16 S rDNA; Chungara Lake; Parinacota wetland; Piacota Lake; Salar de Huasco; Salar de Ascotan; Roseobacter clade
 Abstract: The microbial diversity of five unconnected high altitude (≥ 3800 m a.s.l.) wetlands from the Chilean Altiplano was analyzed by a culture-independent approach, using 16 S rRNA gene sequences of different microbial groups. The wetlands (Chungara Lake, Parinacota wetland, Piacota Lake, Salar de Huasco and Salar de Ascotan) differed in terms of habitat type and physicochemical properties. The bacterial communities of these systems were dominated by Bacteroidetes (24–94 % of the clones) and Proteobacteria (Alpha, Beta, Gamma and Delta subgroups) with smaller contributions by the Firmicutes, Actinobacteria, Planctomycetes, Verrucomicrobia, Chloroflexi, Cyanobacteria, Acidobacteria, Deinococcus-Thermus and Candidate Division WS3. Fourteen phylotypes matching Alphaproteobacteria were part of the marine Roseobacter clade, representing new clusters of this group. Archaeal diversity was much lower than that seen for bacteria, and was dominated by Euryarchaeota; however Crenarchaeota were also present. Considering the large differences in microbial community composition between sites and samples, the presence of eleven phylotypes common to two or more habitats is highlighted. The frequent presence of new taxa in different phylogenetic groups in the altiplanic wetlands studied here revealed the unique characteristics of Bacteria and Archaea in these fragile Andean ecosystems.

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Language(s): eng - English
 Dates: 2013-02
 Publication Status: Published in print
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 Identifiers: DOI: 10.1127/1863-9135/2013/0393
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Title: Fundamental and Applied Limnology Archiv für Hydrobiologie
Source Genre: Journal
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Publ. Info: Stuttgart : E. Schweizerbart'sche Verlagsbuchhandlung (Nägele u. Obermiller)
Pages: - Volume / Issue: 182 (2) Sequence Number: - Start / End Page: 135 - 159 Identifier: ISSN: 1863-9135
CoNE: /journals/resource/954925381014