Subglacial Lake Vostok (Antarctica) accretion ice contains a diverse set of sequences from aquatic, marine and sediment-inhabiting bacteria and eukarya.
Lake Vostok, the 7(th) largest (by volume) and 4(th) 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...
Published in: | PLoS ONE |
---|---|
Main Authors: | , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Public Library of Science (PLoS)
2013
|
Subjects: | |
Online Access: | https://doi.org/10.1371/journal.pone.0067221 https://doaj.org/article/00b4e0ce474f43768dd2d1df6adf8f30 |
id |
ftdoajarticles:oai:doaj.org/article:00b4e0ce474f43768dd2d1df6adf8f30 |
---|---|
record_format |
openpolar |
spelling |
ftdoajarticles:oai:doaj.org/article:00b4e0ce474f43768dd2d1df6adf8f30 2023-05-15T13:55:29+02:00 Subglacial Lake Vostok (Antarctica) accretion ice contains a diverse set of sequences from aquatic, marine and sediment-inhabiting bacteria and eukarya. Yury M Shtarkman Zeynep A Koçer Robyn Edgar Ram S Veerapaneni Tom D'Elia Paul F Morris Scott O Rogers 2013-01-01T00:00:00Z https://doi.org/10.1371/journal.pone.0067221 https://doaj.org/article/00b4e0ce474f43768dd2d1df6adf8f30 EN eng Public Library of Science (PLoS) https://www.ncbi.nlm.nih.gov/pmc/articles/pmid/23843994/?tool=EBI https://doaj.org/toc/1932-6203 1932-6203 doi:10.1371/journal.pone.0067221 https://doaj.org/article/00b4e0ce474f43768dd2d1df6adf8f30 PLoS ONE, Vol 8, Iss 7, p e67221 (2013) Medicine R Science Q article 2013 ftdoajarticles https://doi.org/10.1371/journal.pone.0067221 2022-12-31T07:25:27Z Lake Vostok, the 7(th) largest (by volume) and 4(th) 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 µm-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 Directory of Open Access Journals: DOAJ Articles Lake Vostok ENVELOPE(106.000,106.000,-77.500,-77.500) PLoS ONE 8 7 e67221 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Medicine R Science Q |
spellingShingle |
Medicine R Science Q Yury M Shtarkman Zeynep A Koçer Robyn Edgar Ram S Veerapaneni Tom D'Elia Paul F Morris Scott O Rogers Subglacial Lake Vostok (Antarctica) accretion ice contains a diverse set of sequences from aquatic, marine and sediment-inhabiting bacteria and eukarya. |
topic_facet |
Medicine R Science Q |
description |
Lake Vostok, the 7(th) largest (by volume) and 4(th) 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 µm-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 |
Yury M Shtarkman Zeynep A Koçer Robyn Edgar Ram S Veerapaneni Tom D'Elia Paul F Morris Scott O Rogers |
author_facet |
Yury M Shtarkman Zeynep A Koçer Robyn Edgar Ram S Veerapaneni Tom D'Elia Paul F Morris Scott O Rogers |
author_sort |
Yury M Shtarkman |
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. |
publisher |
Public Library of Science (PLoS) |
publishDate |
2013 |
url |
https://doi.org/10.1371/journal.pone.0067221 https://doaj.org/article/00b4e0ce474f43768dd2d1df6adf8f30 |
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_source |
PLoS ONE, Vol 8, Iss 7, p e67221 (2013) |
op_relation |
https://www.ncbi.nlm.nih.gov/pmc/articles/pmid/23843994/?tool=EBI https://doaj.org/toc/1932-6203 1932-6203 doi:10.1371/journal.pone.0067221 https://doaj.org/article/00b4e0ce474f43768dd2d1df6adf8f30 |
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_ |
1766262144120127488 |