The Biodiversity and Geochemistry of Cryoconite Holes in Queen Maud Land, East Antarctica
Cryoconite holes are oases of microbial diversity on ice surfaces. In contrast to the Arctic, where during the summer most cryoconite holes are ‘open’, in Continental Antarctica they are most often ‘lidded’ or completely frozen year-round. Thus, they represent ideal systems for the study of microbia...
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ftfuberlin:oai:refubium.fu-berlin.de:fub188/25215 2023-05-15T13:53:47+02:00 The Biodiversity and Geochemistry of Cryoconite Holes in Queen Maud Land, East Antarctica Lutz, Stefanie Ziolkowski, Lori A. Benning, Liane G. 2019 16 Seiten application/pdf https://refubium.fu-berlin.de/handle/fub188/25215 https://doi.org/10.17169/refubium-3920 https://doi.org/10.3390/microorganisms7060160 eng eng https://refubium.fu-berlin.de/handle/fub188/25215 http://dx.doi.org/10.17169/refubium-3920 doi:10.3390/microorganisms7060160 https://creativecommons.org/licenses/by/4.0/ CC-BY cryoconite holes Antarctica high-throughput sequencing bacteria eukaryotes carbon 14C 13C ddc:540 ddc:550 doc-type:article 2019 ftfuberlin https://doi.org/10.17169/refubium-3920 https://doi.org/10.3390/microorganisms7060160 2022-05-15T20:45:42Z Cryoconite holes are oases of microbial diversity on ice surfaces. In contrast to the Arctic, where during the summer most cryoconite holes are ‘open’, in Continental Antarctica they are most often ‘lidded’ or completely frozen year-round. Thus, they represent ideal systems for the study of microbial community assemblies as well as carbon accumulation, since individual cryoconite holes can be isolated from external inputs for years. Here, we use high-throughput sequencing of the 16S and 18S rRNA genes to describe the bacterial and eukaryotic community compositions in cryoconite holes and surrounding lake, snow, soil and rock samples in Queen Maud Land. We cross correlate our findings with a broad range of geochemical data including for the first time 13C and 14C analyses of Antarctic cryoconites. We show that the geographic location has a larger effect on the distribution of the bacterial community compared to the eukaryotic community. Cryoconite holes are distinct from the local soils in both 13C and 14C and their isotopic composition is different from similar samples from the Arctic. Carbon contents were generally low (≤0.2%) and older (6–10 ky) than the surrounding soils, suggesting that the cryoconite holes are much more isolated from the atmosphere than the soils. Article in Journal/Newspaper Antarc* Antarctic Antarctica Arctic East Antarctica Queen Maud Land Freie Universität Berlin: Refubium (FU Berlin) Antarctic Arctic East Antarctica Queen Maud Land ENVELOPE(12.000,12.000,-72.500,-72.500) |
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Open Polar |
collection |
Freie Universität Berlin: Refubium (FU Berlin) |
op_collection_id |
ftfuberlin |
language |
English |
topic |
cryoconite holes Antarctica high-throughput sequencing bacteria eukaryotes carbon 14C 13C ddc:540 ddc:550 |
spellingShingle |
cryoconite holes Antarctica high-throughput sequencing bacteria eukaryotes carbon 14C 13C ddc:540 ddc:550 Lutz, Stefanie Ziolkowski, Lori A. Benning, Liane G. The Biodiversity and Geochemistry of Cryoconite Holes in Queen Maud Land, East Antarctica |
topic_facet |
cryoconite holes Antarctica high-throughput sequencing bacteria eukaryotes carbon 14C 13C ddc:540 ddc:550 |
description |
Cryoconite holes are oases of microbial diversity on ice surfaces. In contrast to the Arctic, where during the summer most cryoconite holes are ‘open’, in Continental Antarctica they are most often ‘lidded’ or completely frozen year-round. Thus, they represent ideal systems for the study of microbial community assemblies as well as carbon accumulation, since individual cryoconite holes can be isolated from external inputs for years. Here, we use high-throughput sequencing of the 16S and 18S rRNA genes to describe the bacterial and eukaryotic community compositions in cryoconite holes and surrounding lake, snow, soil and rock samples in Queen Maud Land. We cross correlate our findings with a broad range of geochemical data including for the first time 13C and 14C analyses of Antarctic cryoconites. We show that the geographic location has a larger effect on the distribution of the bacterial community compared to the eukaryotic community. Cryoconite holes are distinct from the local soils in both 13C and 14C and their isotopic composition is different from similar samples from the Arctic. Carbon contents were generally low (≤0.2%) and older (6–10 ky) than the surrounding soils, suggesting that the cryoconite holes are much more isolated from the atmosphere than the soils. |
format |
Article in Journal/Newspaper |
author |
Lutz, Stefanie Ziolkowski, Lori A. Benning, Liane G. |
author_facet |
Lutz, Stefanie Ziolkowski, Lori A. Benning, Liane G. |
author_sort |
Lutz, Stefanie |
title |
The Biodiversity and Geochemistry of Cryoconite Holes in Queen Maud Land, East Antarctica |
title_short |
The Biodiversity and Geochemistry of Cryoconite Holes in Queen Maud Land, East Antarctica |
title_full |
The Biodiversity and Geochemistry of Cryoconite Holes in Queen Maud Land, East Antarctica |
title_fullStr |
The Biodiversity and Geochemistry of Cryoconite Holes in Queen Maud Land, East Antarctica |
title_full_unstemmed |
The Biodiversity and Geochemistry of Cryoconite Holes in Queen Maud Land, East Antarctica |
title_sort |
biodiversity and geochemistry of cryoconite holes in queen maud land, east antarctica |
publishDate |
2019 |
url |
https://refubium.fu-berlin.de/handle/fub188/25215 https://doi.org/10.17169/refubium-3920 https://doi.org/10.3390/microorganisms7060160 |
long_lat |
ENVELOPE(12.000,12.000,-72.500,-72.500) |
geographic |
Antarctic Arctic East Antarctica Queen Maud Land |
geographic_facet |
Antarctic Arctic East Antarctica Queen Maud Land |
genre |
Antarc* Antarctic Antarctica Arctic East Antarctica Queen Maud Land |
genre_facet |
Antarc* Antarctic Antarctica Arctic East Antarctica Queen Maud Land |
op_relation |
https://refubium.fu-berlin.de/handle/fub188/25215 http://dx.doi.org/10.17169/refubium-3920 doi:10.3390/microorganisms7060160 |
op_rights |
https://creativecommons.org/licenses/by/4.0/ |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.17169/refubium-3920 https://doi.org/10.3390/microorganisms7060160 |
_version_ |
1766259229839065088 |