Cited by 142Microbial Community Ecology and PhysiologyPolar Research and EcologyGenomics and Phylogenetic Studies

Diversity of Bacteroidetes in high‐altitude saline evaporitic basins in northern Chile

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Dorador, Cristina, Meneses, Daniela, Urtuvia, Viviana, Demergasso, Cecilia, Vila, Irma, Witzel, Karl‐Paul, Imhoff, Johannes F.·2009·Journal of Geophysical Research: Biogeosciences

Abstract

The phylum Bacteroidetes represents one of the most abundant bacterial groups of marine and freshwater bacterioplankton. We investigated the diversity of Bacteroidetes in water and sediment samples from three evaporitic basins located in the highlands of northern Chile. We used both 16S rRNA gene clone libraries created with targeted Bacteroidetes‐specific primers and separation of specifically amplified gene fragments by denaturing gradient gel electrophoresis (DGGE). DGGE analysis revealed a reduced richness of these organisms in samples from Salar de Huasco (two to four DGGE bands) increasing in Salar de Ascotán (two to seven DGGE bands) and Laguna Tebenquiche at Salar de Atacama (four to eight DGGE bands). Cluster analysis (WPGMA) of DGGE bands showed that bands from Salar de Huasco and Salar de Ascotán grouped together and samples from Salar de Atacama formed separate clusters in water and sediment samples, reflecting different Bacteroidetes communities between sites. Most of the sequences analyzed belonged to the family Flavobacteriaceae and clustered with the genera Psychroflexus, Gillisia, Maribacter, Muricauda, Flavobacterium, and Salegentibacter. The most abundant phylotype was highly related to Psychroflexus spp. and was recovered from all three study sites. The similarity of the analyzed sequences with their closest relatives in GenBank was typically <97% and notably lower when compared with type strains, demonstrating the unique character of these sequences. Culture efforts will be necessary to get a better description of the diversity of this group in saline evaporitic basins of northern Chile.

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Crossref · 10.1029/2008jg000837

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  • Salt flats are fragile ecosystems characterized by unique biodiversity, including birds in conservation categories and benthonic microorganisms fundamental to trophic chains.

    “Salt flats are fragile ecosystems characterized by unique biodiversity, including birds in the conservation category, such as flamingos, and benthonic microorganisms fundamental to the tropic chains.”

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Authors
Dorador, C., Meneses, D., Urtuvia, V., Demergasso, C., Vila, I., Witzel, K., & Imhoff, J. F.
Affiliations
  • Max Planck Society (DE)
  • Universidad Católica del Norte (CL)
  • University of Chile (CL)
  • Max Planck Institute for Evolutionary Biology (DE)
  • GEOMAR Helmholtz Centre for Ocean Research Kiel (DE)
Venue
Journal of Geophysical Research: Biogeosciences
Published
2009-06
Volume
114
Issue
G2
ISSN
0148-0227 (ISSN-L)
OpenAlex
W2072582771
Cited by
142
References
59
Citations by year
2026: 3 · 2025: 4 · 2024: 22 · 2023: 42 · 2022: 2 · 2021: 7 · 2020: 12 · 2019: 5 · 2018: 9 · 2017: 6 · 2016: 8 · 2015: 9 · 2014: 2 · 2013: 4 · 2012: 1
FWCI
2.04
Type
journal article
Language
en
Open access
Locations
  • Journal of Geophysical Research Atmospheres (publishedVersion)
  • Helmholtz Centre for Ocean Research Kiel (GEOMAR) (acceptedVersion, other-oa)
  • Max Planck Institute for Plasma Physics (submittedVersion)
  • MPG.PuRe (Max Planck Society) (submittedVersion)
Funders
  • Deutscher Akademischer Austauschdienst
  • Comisión Nacional de Investigación Científica y Tecnológica
Topics
  • Physical Sciences › Environmental Science › Ecology › Microbial Community Ecology and Physiology
  • Physical Sciences › Environmental Science › Ecology › Polar Research and Ecology
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Genomics and Phylogenetic Studies
Keywords
Bacteroidetes, bacterial diversity, high-altitude lakes, Salar de Atacama, Flavobacteriaceae, bacterial communities, 16S rRNA gene, saline lakes, northern Chile

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