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Bacterial and eukaryotic biodiversity patterns in terrestrial and aquatic habitats in the Sor Rondane Mountains, Dronning Maud Land, East Antarctica

Author
Organization
Project
UGent BOF 0J28410
Project
DELAQUA (InBev-Baillet Latour Fund)
Project
BELDIVA (BelSPO EA/XX/05)
Project
CCAMBIO (BelSPO SD/BA/03)
Project
ANTARIMPACT (BelSPO SD/BA/853)
Abstract
The bacterial and microeukaryotic biodiversity were studied using pyrosequencing analysis on a 454 GS FLX+ platform of partial SSU rRNA genes in terrestrial and aquatic habitats of the Sor Rondane Mountains, including soils, on mosses, endolithic communities, cryoconite holes and supraglacial and subglacial meltwater lenses. This inventory was complemented with Denaturing Gradient Gel Electrophoresis targeting Chlorophyta and Cyanobacteria. OTUs belonging to the Rotifera, Chlorophyta, Tardigrada, Ciliophora, Cercozoa, Fungi, Bryophyta, Bacillariophyta, Collembola and Nematoda were present with a relative abundance of at least 0.1% in the eukaryotic communities. Cyanobacteria, Proteobacteria, Bacteroidetes, Acidobacteria, FBP and Actinobacteria were the most abundant bacterial phyla. Multivariate analyses of the pyrosequencing data revealed a general lack of differentiation of both eukaryotes and prokaryotes according to habitat type. However, the bacterial community structure in the aquatic habitats was dominated by the filamentous cyanobacteria Leptolyngbya and appeared to be significantly different compared with those in dry soils, on mosses, and in endolithic habitats. A striking feature in all datasets was the detection of a relatively large amount of sequences new to science, which underscores the need for additional biodiversity assessments in Antarctic inland locations.
Keywords
MICROBIAL DIVERSITY, CYANOBACTERIAL DIVERSITY, RIBOSOMAL-RNA SEQUENCES, TRANSANTARCTIC MOUNTAINS, LIVINGSTON ISLAND, ICE-FREE, SOUTH, DRY VALLEY SOILS, WATER, cyanobacteria, bacteria, green algae, COMMUNITY STRUCTURE, eukaryotes, terrestrial biodiversity, Antarctica

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Citation

Please use this url to cite or link to this publication:

Chicago
Obbels, Dagmar, Elie Verleyen, Marie-José Mano, Zorigto Namsaraev, Maxime Sweetlove, Bjorn Tytgat, Rafael Fernandez-Carazo, et al. 2016. “Bacterial and Eukaryotic Biodiversity Patterns in Terrestrial and Aquatic Habitats in the Sor Rondane Mountains, Dronning Maud Land, East Antarctica.” Fems Microbiology Ecology 92 (6).
APA
Obbels, D., Verleyen, E., Mano, M.-J., Namsaraev, Z., Sweetlove, M., Tytgat, B., Fernandez-Carazo, R., et al. (2016). Bacterial and eukaryotic biodiversity patterns in terrestrial and aquatic habitats in the Sor Rondane Mountains, Dronning Maud Land, East Antarctica. FEMS MICROBIOLOGY ECOLOGY, 92(6).
Vancouver
1.
Obbels D, Verleyen E, Mano M-J, Namsaraev Z, Sweetlove M, Tytgat B, et al. Bacterial and eukaryotic biodiversity patterns in terrestrial and aquatic habitats in the Sor Rondane Mountains, Dronning Maud Land, East Antarctica. FEMS MICROBIOLOGY ECOLOGY. 2016;92(6).
MLA
Obbels, Dagmar, Elie Verleyen, Marie-José Mano, et al. “Bacterial and Eukaryotic Biodiversity Patterns in Terrestrial and Aquatic Habitats in the Sor Rondane Mountains, Dronning Maud Land, East Antarctica.” FEMS MICROBIOLOGY ECOLOGY 92.6 (2016): n. pag. Print.
@article{8068406,
  abstract     = {The bacterial and microeukaryotic biodiversity were studied using pyrosequencing analysis on a 454 GS FLX+ platform of partial SSU rRNA genes in terrestrial and aquatic habitats of the Sor Rondane Mountains, including soils, on mosses, endolithic communities, cryoconite holes and supraglacial and subglacial meltwater lenses. This inventory was complemented with Denaturing Gradient Gel Electrophoresis targeting Chlorophyta and Cyanobacteria. OTUs belonging to the Rotifera, Chlorophyta, Tardigrada, Ciliophora, Cercozoa, Fungi, Bryophyta, Bacillariophyta, Collembola and Nematoda were present with a relative abundance of at least 0.1\% in the eukaryotic communities. Cyanobacteria, Proteobacteria, Bacteroidetes, Acidobacteria, FBP and Actinobacteria were the most abundant bacterial phyla. Multivariate analyses of the pyrosequencing data revealed a general lack of differentiation of both eukaryotes and prokaryotes according to habitat type. However, the bacterial community structure in the aquatic habitats was dominated by the filamentous cyanobacteria Leptolyngbya and appeared to be significantly different compared with those in dry soils, on mosses, and in endolithic habitats. A striking feature in all datasets was the detection of a relatively large amount of sequences new to science, which underscores the need for additional biodiversity assessments in Antarctic inland locations.},
  articleno    = {fiw041},
  author       = {Obbels, Dagmar and Verleyen, Elie and Mano, Marie-Jos{\'e} and Namsaraev, Zorigto and Sweetlove, Maxime and Tytgat, Bjorn and Fernandez-Carazo, Rafael and De Wever, Aaike and D'hondt, Sofie and Ertz, Damien and Elster, Josef and Sabbe, Koen and Willems, Anne and Wilmotte, Annick and Vyverman, Wim},
  issn         = {0168-6496},
  journal      = {FEMS MICROBIOLOGY ECOLOGY},
  language     = {eng},
  number       = {6},
  pages        = {13},
  title        = {Bacterial and eukaryotic biodiversity patterns in terrestrial and aquatic habitats in the Sor Rondane Mountains, Dronning Maud Land, East Antarctica},
  url          = {http://dx.doi.org/10.1093/femsec/fiw041},
  volume       = {92},
  year         = {2016},
}

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