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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ftdatacite:10.17169/refubium-3920 2023-05-15T13:40:16+02:00 The Biodiversity and Geochemistry of Cryoconite Holes in Queen Maud Land, East Antarctica Lutz, Stefanie Ziolkowski, Lori A. Benning, Liane G. 2019 https://dx.doi.org/10.17169/refubium-3920 https://refubium.fu-berlin.de/handle/fub188/25215 unknown Freie Universität Berlin https://doi.org/10.3390/microorganisms7060160 https://dx.doi.org/10.3390/microorganisms7060160 https://doi.org/10.3390/microorganisms7060160 Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/legalcode cc-by-4.0 CC-BY cryoconite holes Antarctica high-throughput sequencing bacteria eukaryotes carbon 14C 13C 500 Naturwissenschaften und Mathematik540 Chemie540 Chemie und zugeordnete Wissenschaften 500 Naturwissenschaften und Mathematik550 Geowissenschaften, Geologie550 Geowissenschaften Text article-journal Wissenschaftlicher Artikel ScholarlyArticle 2019 ftdatacite https://doi.org/10.17169/refubium-3920 https://doi.org/10.3390/microorganisms7060160 2021-11-05T12:55:41Z 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. Text Antarc* Antarctic Antarctica Arctic East Antarctica Queen Maud Land DataCite Metadata Store (German National Library of Science and Technology) Antarctic Arctic East Antarctica Queen Maud Land ENVELOPE(12.000,12.000,-72.500,-72.500) |
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collection |
DataCite Metadata Store (German National Library of Science and Technology) |
op_collection_id |
ftdatacite |
language |
unknown |
topic |
cryoconite holes Antarctica high-throughput sequencing bacteria eukaryotes carbon 14C 13C 500 Naturwissenschaften und Mathematik540 Chemie540 Chemie und zugeordnete Wissenschaften 500 Naturwissenschaften und Mathematik550 Geowissenschaften, Geologie550 Geowissenschaften |
spellingShingle |
cryoconite holes Antarctica high-throughput sequencing bacteria eukaryotes carbon 14C 13C 500 Naturwissenschaften und Mathematik540 Chemie540 Chemie und zugeordnete Wissenschaften 500 Naturwissenschaften und Mathematik550 Geowissenschaften, Geologie550 Geowissenschaften 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 500 Naturwissenschaften und Mathematik540 Chemie540 Chemie und zugeordnete Wissenschaften 500 Naturwissenschaften und Mathematik550 Geowissenschaften, Geologie550 Geowissenschaften |
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 |
Text |
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 |
publisher |
Freie Universität Berlin |
publishDate |
2019 |
url |
https://dx.doi.org/10.17169/refubium-3920 https://refubium.fu-berlin.de/handle/fub188/25215 |
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://doi.org/10.3390/microorganisms7060160 https://dx.doi.org/10.3390/microorganisms7060160 https://doi.org/10.3390/microorganisms7060160 |
op_rights |
Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/legalcode cc-by-4.0 |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.17169/refubium-3920 https://doi.org/10.3390/microorganisms7060160 |
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1766131591492403200 |