Subglacial Lake Vostok (Antarctica) Accretion Ice Contains a Diverse Set of Sequences from Aquatic, Marine and Sediment-Inhabiting Bacteria and Eukarya
Lake Vostok, the 7th largest (by volume) and 4th deepest lake on Earth, is covered by more than 3,700 m of ice, making it the largest subglacial lake known. The combination of cold, heat (from possible hydrothermal activity), pressure (from the overriding glacier), limited nutrients and complete dar...
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Online Access: | https://doi.org/10.1371/journal.pone.0067221 https://avesis.deu.edu.tr/publication/details/919450cb-478c-4e8e-bd60-1929beb1d964/oai |
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ftdokuzeylueluni:919450cb-478c-4e8e-bd60-1929beb1d964 2023-05-15T13:43:29+02:00 Subglacial Lake Vostok (Antarctica) Accretion Ice Contains a Diverse Set of Sequences from Aquatic, Marine and Sediment-Inhabiting Bacteria and Eukarya D'Elia, Tom Edgar, Robyn Shtarkman, Yury M. KOÇER, ZEYNEP AHSEN Veerapaneni, Ram S. Rogers, Scott O. Morris, Paul F. 2013-07-01T00:00:00Z https://doi.org/10.1371/journal.pone.0067221 https://avesis.deu.edu.tr/publication/details/919450cb-478c-4e8e-bd60-1929beb1d964/oai eng eng 919450cb-478c-4e8e-bd60-1929beb1d964 doi:10.1371/journal.pone.0067221 https://avesis.deu.edu.tr/publication/details/919450cb-478c-4e8e-bd60-1929beb1d964/oai info:eu-repo/semantics/closedAccess info:eu-repo/semantics/article 2013 ftdokuzeylueluni https://doi.org/10.1371/journal.pone.0067221 2022-06-01T07:03:00Z Lake Vostok, the 7th largest (by volume) and 4th deepest lake on Earth, is covered by more than 3,700 m of ice, making it the largest subglacial lake known. The combination of cold, heat (from possible hydrothermal activity), pressure (from the overriding glacier), limited nutrients and complete darkness presents extreme challenges to life. Here, we report metagenomic/metatranscriptomic sequence analyses from four accretion ice sections from the Vostok 5G ice core. Two sections accreted in the vicinity of an embayment on the southwestern end of the lake, and the other two represented part of the southern main basin. We obtained 3,507 unique gene sequences from concentrates of 500 ml of 0.22 mu m-filtered accretion ice meltwater. Taxonomic classifications (to genus and/or species) were possible for 1,623 of the sequences. Species determinations in combination with mRNA gene sequence results allowed deduction of the metabolic pathways represented in the accretion ice and, by extension, in the lake. Approximately 94% of the sequences were from Bacteria and 6% were from Eukarya. Only two sequences were from Archaea. In general, the taxa were similar to organisms previously described from lakes, brackish water, marine environments, soil, glaciers, ice, lake sediments, deep-sea sediments, deep-sea thermal vents, animals and plants. Sequences from aerobic, anaerobic, psychrophilic, thermophilic, halophilic, alkaliphilic, acidophilic, desiccation-resistant, autotrophic and heterotrophic organisms were present, including a number from multicellular eukaryotes. Article in Journal/Newspaper Antarc* Antarctica ice core Dokuz Eylül University Research Information System Lake Vostok ENVELOPE(106.000,106.000,-77.500,-77.500) PLoS ONE 8 7 e67221 |
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Open Polar |
collection |
Dokuz Eylül University Research Information System |
op_collection_id |
ftdokuzeylueluni |
language |
English |
description |
Lake Vostok, the 7th largest (by volume) and 4th deepest lake on Earth, is covered by more than 3,700 m of ice, making it the largest subglacial lake known. The combination of cold, heat (from possible hydrothermal activity), pressure (from the overriding glacier), limited nutrients and complete darkness presents extreme challenges to life. Here, we report metagenomic/metatranscriptomic sequence analyses from four accretion ice sections from the Vostok 5G ice core. Two sections accreted in the vicinity of an embayment on the southwestern end of the lake, and the other two represented part of the southern main basin. We obtained 3,507 unique gene sequences from concentrates of 500 ml of 0.22 mu m-filtered accretion ice meltwater. Taxonomic classifications (to genus and/or species) were possible for 1,623 of the sequences. Species determinations in combination with mRNA gene sequence results allowed deduction of the metabolic pathways represented in the accretion ice and, by extension, in the lake. Approximately 94% of the sequences were from Bacteria and 6% were from Eukarya. Only two sequences were from Archaea. In general, the taxa were similar to organisms previously described from lakes, brackish water, marine environments, soil, glaciers, ice, lake sediments, deep-sea sediments, deep-sea thermal vents, animals and plants. Sequences from aerobic, anaerobic, psychrophilic, thermophilic, halophilic, alkaliphilic, acidophilic, desiccation-resistant, autotrophic and heterotrophic organisms were present, including a number from multicellular eukaryotes. |
format |
Article in Journal/Newspaper |
author |
D'Elia, Tom Edgar, Robyn Shtarkman, Yury M. KOÇER, ZEYNEP AHSEN Veerapaneni, Ram S. Rogers, Scott O. Morris, Paul F. |
spellingShingle |
D'Elia, Tom Edgar, Robyn Shtarkman, Yury M. KOÇER, ZEYNEP AHSEN Veerapaneni, Ram S. Rogers, Scott O. Morris, Paul F. Subglacial Lake Vostok (Antarctica) Accretion Ice Contains a Diverse Set of Sequences from Aquatic, Marine and Sediment-Inhabiting Bacteria and Eukarya |
author_facet |
D'Elia, Tom Edgar, Robyn Shtarkman, Yury M. KOÇER, ZEYNEP AHSEN Veerapaneni, Ram S. Rogers, Scott O. Morris, Paul F. |
author_sort |
D'Elia, Tom |
title |
Subglacial Lake Vostok (Antarctica) Accretion Ice Contains a Diverse Set of Sequences from Aquatic, Marine and Sediment-Inhabiting Bacteria and Eukarya |
title_short |
Subglacial Lake Vostok (Antarctica) Accretion Ice Contains a Diverse Set of Sequences from Aquatic, Marine and Sediment-Inhabiting Bacteria and Eukarya |
title_full |
Subglacial Lake Vostok (Antarctica) Accretion Ice Contains a Diverse Set of Sequences from Aquatic, Marine and Sediment-Inhabiting Bacteria and Eukarya |
title_fullStr |
Subglacial Lake Vostok (Antarctica) Accretion Ice Contains a Diverse Set of Sequences from Aquatic, Marine and Sediment-Inhabiting Bacteria and Eukarya |
title_full_unstemmed |
Subglacial Lake Vostok (Antarctica) Accretion Ice Contains a Diverse Set of Sequences from Aquatic, Marine and Sediment-Inhabiting Bacteria and Eukarya |
title_sort |
subglacial lake vostok (antarctica) accretion ice contains a diverse set of sequences from aquatic, marine and sediment-inhabiting bacteria and eukarya |
publishDate |
2013 |
url |
https://doi.org/10.1371/journal.pone.0067221 https://avesis.deu.edu.tr/publication/details/919450cb-478c-4e8e-bd60-1929beb1d964/oai |
long_lat |
ENVELOPE(106.000,106.000,-77.500,-77.500) |
geographic |
Lake Vostok |
geographic_facet |
Lake Vostok |
genre |
Antarc* Antarctica ice core |
genre_facet |
Antarc* Antarctica ice core |
op_relation |
919450cb-478c-4e8e-bd60-1929beb1d964 doi:10.1371/journal.pone.0067221 https://avesis.deu.edu.tr/publication/details/919450cb-478c-4e8e-bd60-1929beb1d964/oai |
op_rights |
info:eu-repo/semantics/closedAccess |
op_doi |
https://doi.org/10.1371/journal.pone.0067221 |
container_title |
PLoS ONE |
container_volume |
8 |
container_issue |
7 |
container_start_page |
e67221 |
_version_ |
1766189604641177600 |