The impacts of deglaciation and human activity on the taxonomic structure of prokaryotic communities in Antarctic soils on King George Island
Abstract The soil microbiome was investigated at environmentally distinct locations on King George Island in the South Shetland Islands (Antarctic Peninsula) using 16 S rRNA gene pyrosequencing. The taxonomic composition of the soil prokaryotes (bacteria and archaea) was evaluated at three sites rep...
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crcambridgeupr:10.1017/s095410201800024x 2024-09-15T17:43:16+00:00 The impacts of deglaciation and human activity on the taxonomic structure of prokaryotic communities in Antarctic soils on King George Island Pershina, E.V. Ivanova, E.A. Abakumov, E.V. Andronov, E.E. 2018 http://dx.doi.org/10.1017/s095410201800024x https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S095410201800024X en eng Cambridge University Press (CUP) https://www.cambridge.org/core/terms https://www.cambridge.org/core/terms Antarctic Science volume 30, issue 5, page 278-288 ISSN 0954-1020 1365-2079 journal-article 2018 crcambridgeupr https://doi.org/10.1017/s095410201800024x 2024-07-03T04:03:46Z Abstract The soil microbiome was investigated at environmentally distinct locations on King George Island in the South Shetland Islands (Antarctic Peninsula) using 16 S rRNA gene pyrosequencing. The taxonomic composition of the soil prokaryotes (bacteria and archaea) was evaluated at three sites representing human-disturbed soils (Bellingshausen Station) and soils undergoing different stages of deglaciation (fresh and old moraines located near Ecology Glacier). The taxonomic analysis revealed 20 bacterial and archaeal phyla, among which Proteobacteria (29.6%), Actinobacteria (25.3%), Bacteroidetes (15.8%), Cyanobacteria (11.2%), Acidobacteria (4.9%) and Verrucomicrobia (4.5%) comprised most of the microbiome. In a beta-diversity analysis, the samples formed separate clusters. The Bellingshausen Station samples were characterized by an increased amount of Nostoc sp. and Janibacter sp. Although the deglaciation history had less of an effect on the soil microbiome, the early stages of deglaciation (Sample 1) had a higher proportion of bacteria belonging to the families Xanthomonadaceae, Sphingomonadaceae and Nocardioidaceae, whereas the older moraines (Sample 2) were enriched with Chthoniobacteriacae and N1423WL. Solirubrobacteriales, Gaiellaceae and Chitinophagaceae bacteria were present in both stages of deglaciation, characterized by genus-level differences. Taxonomic analysis of the abundant operational taxonomic units (OTUs) revealed both endemic ( Marisediminicola antarctica , Hymenobacter glaciei ) and cosmopolitan bacterial species in the microbiomes. Article in Journal/Newspaper Antarc* Antarctic Antarctic Peninsula Antarctic Science Antarctica King George Island South Shetland Islands Cambridge University Press Antarctic Science 30 5 278 288 |
institution |
Open Polar |
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Cambridge University Press |
op_collection_id |
crcambridgeupr |
language |
English |
description |
Abstract The soil microbiome was investigated at environmentally distinct locations on King George Island in the South Shetland Islands (Antarctic Peninsula) using 16 S rRNA gene pyrosequencing. The taxonomic composition of the soil prokaryotes (bacteria and archaea) was evaluated at three sites representing human-disturbed soils (Bellingshausen Station) and soils undergoing different stages of deglaciation (fresh and old moraines located near Ecology Glacier). The taxonomic analysis revealed 20 bacterial and archaeal phyla, among which Proteobacteria (29.6%), Actinobacteria (25.3%), Bacteroidetes (15.8%), Cyanobacteria (11.2%), Acidobacteria (4.9%) and Verrucomicrobia (4.5%) comprised most of the microbiome. In a beta-diversity analysis, the samples formed separate clusters. The Bellingshausen Station samples were characterized by an increased amount of Nostoc sp. and Janibacter sp. Although the deglaciation history had less of an effect on the soil microbiome, the early stages of deglaciation (Sample 1) had a higher proportion of bacteria belonging to the families Xanthomonadaceae, Sphingomonadaceae and Nocardioidaceae, whereas the older moraines (Sample 2) were enriched with Chthoniobacteriacae and N1423WL. Solirubrobacteriales, Gaiellaceae and Chitinophagaceae bacteria were present in both stages of deglaciation, characterized by genus-level differences. Taxonomic analysis of the abundant operational taxonomic units (OTUs) revealed both endemic ( Marisediminicola antarctica , Hymenobacter glaciei ) and cosmopolitan bacterial species in the microbiomes. |
format |
Article in Journal/Newspaper |
author |
Pershina, E.V. Ivanova, E.A. Abakumov, E.V. Andronov, E.E. |
spellingShingle |
Pershina, E.V. Ivanova, E.A. Abakumov, E.V. Andronov, E.E. The impacts of deglaciation and human activity on the taxonomic structure of prokaryotic communities in Antarctic soils on King George Island |
author_facet |
Pershina, E.V. Ivanova, E.A. Abakumov, E.V. Andronov, E.E. |
author_sort |
Pershina, E.V. |
title |
The impacts of deglaciation and human activity on the taxonomic structure of prokaryotic communities in Antarctic soils on King George Island |
title_short |
The impacts of deglaciation and human activity on the taxonomic structure of prokaryotic communities in Antarctic soils on King George Island |
title_full |
The impacts of deglaciation and human activity on the taxonomic structure of prokaryotic communities in Antarctic soils on King George Island |
title_fullStr |
The impacts of deglaciation and human activity on the taxonomic structure of prokaryotic communities in Antarctic soils on King George Island |
title_full_unstemmed |
The impacts of deglaciation and human activity on the taxonomic structure of prokaryotic communities in Antarctic soils on King George Island |
title_sort |
impacts of deglaciation and human activity on the taxonomic structure of prokaryotic communities in antarctic soils on king george island |
publisher |
Cambridge University Press (CUP) |
publishDate |
2018 |
url |
http://dx.doi.org/10.1017/s095410201800024x https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S095410201800024X |
genre |
Antarc* Antarctic Antarctic Peninsula Antarctic Science Antarctica King George Island South Shetland Islands |
genre_facet |
Antarc* Antarctic Antarctic Peninsula Antarctic Science Antarctica King George Island South Shetland Islands |
op_source |
Antarctic Science volume 30, issue 5, page 278-288 ISSN 0954-1020 1365-2079 |
op_rights |
https://www.cambridge.org/core/terms https://www.cambridge.org/core/terms |
op_doi |
https://doi.org/10.1017/s095410201800024x |
container_title |
Antarctic Science |
container_volume |
30 |
container_issue |
5 |
container_start_page |
278 |
op_container_end_page |
288 |
_version_ |
1810490137406078976 |