Heterotrophic Microbiota from the Oligotrophic Waters of Lake Vostok, Antarctica
Lake Vostok is the deepest lake of Antarctica but has poor accessibility for study due to a thick glacial cover, however, water samples of this lake have become available for study just recently. Previously, only the microbiome of the ice cover samples was characterized. Here we report results of ba...
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ftpubmed:oai:pubmedcentral.nih.gov:8998000 2023-05-15T13:40:18+02:00 Heterotrophic Microbiota from the Oligotrophic Waters of Lake Vostok, Antarctica Epova, Ekaterina Y. Shevelev, Alexei B. Akbayev, Ramazan M. Biryukova, Yulia K. Zylkova, Marina V. Bogdanova, Elena S. Guseva, Marina A. Tynio, Yaroslav Y. Egorov, Vladislav V. 2022-03-29 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC8998000/ http://www.ncbi.nlm.nih.gov/pubmed/35409708 https://doi.org/10.3390/ijerph19074025 en eng MDPI http://www.ncbi.nlm.nih.gov/pmc/articles/PMC8998000/ http://www.ncbi.nlm.nih.gov/pubmed/35409708 http://dx.doi.org/10.3390/ijerph19074025 © 2022 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). CC-BY Int J Environ Res Public Health Article Text 2022 ftpubmed https://doi.org/10.3390/ijerph19074025 2022-04-17T00:57:18Z Lake Vostok is the deepest lake of Antarctica but has poor accessibility for study due to a thick glacial cover, however, water samples of this lake have become available for study just recently. Previously, only the microbiome of the ice cover samples was characterized. Here we report results of bacteriological seeding with subsequent identification of the heterotrophic microorganisms (bacteria and micellar fungi) present by 16S rDNA sequencing as well as results of a direct molecular study of the water microbiome. Surprisingly, the data obtained gave evidence of a predominant occurrence of common chemoorganotrophs that were rather psychrotolerant than psychrophilic. We isolated and described strains belonging to eight heterotrophic microbial species able to grow in a rich medium: six bacterial strains belonging to the species Microbacterium testaceum and Microbacterium trichothecenolyticum, Brevundimonas diminuta, Sphingomonas oligophenolica, Sphingomonas sp. and Sphingobium limneticum; and two fungal strains belonging to Dendryphion sp. and Cladosporium fusiforme. Direct study of 16S rDNA purified water samples confirmed the predominance of the Brevundimonas, Microbacterium, Bradyrhizobium, and Bacillus (Bacillus cereus) genera. Text Antarc* Antarctica PubMed Central (PMC) Lake Vostok ENVELOPE(106.000,106.000,-77.500,-77.500) International Journal of Environmental Research and Public Health 19 7 4025 |
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Open Polar |
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PubMed Central (PMC) |
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ftpubmed |
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English |
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Article |
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Article Epova, Ekaterina Y. Shevelev, Alexei B. Akbayev, Ramazan M. Biryukova, Yulia K. Zylkova, Marina V. Bogdanova, Elena S. Guseva, Marina A. Tynio, Yaroslav Y. Egorov, Vladislav V. Heterotrophic Microbiota from the Oligotrophic Waters of Lake Vostok, Antarctica |
topic_facet |
Article |
description |
Lake Vostok is the deepest lake of Antarctica but has poor accessibility for study due to a thick glacial cover, however, water samples of this lake have become available for study just recently. Previously, only the microbiome of the ice cover samples was characterized. Here we report results of bacteriological seeding with subsequent identification of the heterotrophic microorganisms (bacteria and micellar fungi) present by 16S rDNA sequencing as well as results of a direct molecular study of the water microbiome. Surprisingly, the data obtained gave evidence of a predominant occurrence of common chemoorganotrophs that were rather psychrotolerant than psychrophilic. We isolated and described strains belonging to eight heterotrophic microbial species able to grow in a rich medium: six bacterial strains belonging to the species Microbacterium testaceum and Microbacterium trichothecenolyticum, Brevundimonas diminuta, Sphingomonas oligophenolica, Sphingomonas sp. and Sphingobium limneticum; and two fungal strains belonging to Dendryphion sp. and Cladosporium fusiforme. Direct study of 16S rDNA purified water samples confirmed the predominance of the Brevundimonas, Microbacterium, Bradyrhizobium, and Bacillus (Bacillus cereus) genera. |
format |
Text |
author |
Epova, Ekaterina Y. Shevelev, Alexei B. Akbayev, Ramazan M. Biryukova, Yulia K. Zylkova, Marina V. Bogdanova, Elena S. Guseva, Marina A. Tynio, Yaroslav Y. Egorov, Vladislav V. |
author_facet |
Epova, Ekaterina Y. Shevelev, Alexei B. Akbayev, Ramazan M. Biryukova, Yulia K. Zylkova, Marina V. Bogdanova, Elena S. Guseva, Marina A. Tynio, Yaroslav Y. Egorov, Vladislav V. |
author_sort |
Epova, Ekaterina Y. |
title |
Heterotrophic Microbiota from the Oligotrophic Waters of Lake Vostok, Antarctica |
title_short |
Heterotrophic Microbiota from the Oligotrophic Waters of Lake Vostok, Antarctica |
title_full |
Heterotrophic Microbiota from the Oligotrophic Waters of Lake Vostok, Antarctica |
title_fullStr |
Heterotrophic Microbiota from the Oligotrophic Waters of Lake Vostok, Antarctica |
title_full_unstemmed |
Heterotrophic Microbiota from the Oligotrophic Waters of Lake Vostok, Antarctica |
title_sort |
heterotrophic microbiota from the oligotrophic waters of lake vostok, antarctica |
publisher |
MDPI |
publishDate |
2022 |
url |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC8998000/ http://www.ncbi.nlm.nih.gov/pubmed/35409708 https://doi.org/10.3390/ijerph19074025 |
long_lat |
ENVELOPE(106.000,106.000,-77.500,-77.500) |
geographic |
Lake Vostok |
geographic_facet |
Lake Vostok |
genre |
Antarc* Antarctica |
genre_facet |
Antarc* Antarctica |
op_source |
Int J Environ Res Public Health |
op_relation |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC8998000/ http://www.ncbi.nlm.nih.gov/pubmed/35409708 http://dx.doi.org/10.3390/ijerph19074025 |
op_rights |
© 2022 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.3390/ijerph19074025 |
container_title |
International Journal of Environmental Research and Public Health |
container_volume |
19 |
container_issue |
7 |
container_start_page |
4025 |
_version_ |
1766131921722540032 |