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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Online Access: | https://doi.org/10.3390/ijerph19074025 https://doaj.org/article/f5cfba23cc0c4608b8d1a78f54c512a7 |
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ftdoajarticles:oai:doaj.org/article:f5cfba23cc0c4608b8d1a78f54c512a7 2023-05-15T13:43:41+02:00 Heterotrophic Microbiota from the Oligotrophic Waters of Lake Vostok, Antarctica Ekaterina Y. Epova Alexei B. Shevelev Ramazan M. Akbayev Yulia K. Biryukova Marina V. Zylkova Elena S. Bogdanova Marina A. Guseva Yaroslav Y. Tynio Vladislav V. Egorov 2022-03-01T00:00:00Z https://doi.org/10.3390/ijerph19074025 https://doaj.org/article/f5cfba23cc0c4608b8d1a78f54c512a7 EN eng MDPI AG https://www.mdpi.com/1660-4601/19/7/4025 https://doaj.org/toc/1661-7827 https://doaj.org/toc/1660-4601 doi:10.3390/ijerph19074025 1660-4601 1661-7827 https://doaj.org/article/f5cfba23cc0c4608b8d1a78f54c512a7 International Journal of Environmental Research and Public Health, Vol 19, Iss 4025, p 4025 (2022) Antarctica lake fresh water microbiota 16S rDNA chemoorganotrophs Medicine R article 2022 ftdoajarticles https://doi.org/10.3390/ijerph19074025 2022-12-30T23:42:22Z 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 . Article in Journal/Newspaper Antarc* Antarctica Directory of Open Access Journals: DOAJ Articles Lake Vostok ENVELOPE(106.000,106.000,-77.500,-77.500) International Journal of Environmental Research and Public Health 19 7 4025 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Antarctica lake fresh water microbiota 16S rDNA chemoorganotrophs Medicine R |
spellingShingle |
Antarctica lake fresh water microbiota 16S rDNA chemoorganotrophs Medicine R Ekaterina Y. Epova Alexei B. Shevelev Ramazan M. Akbayev Yulia K. Biryukova Marina V. Zylkova Elena S. Bogdanova Marina A. Guseva Yaroslav Y. Tynio Vladislav V. Egorov Heterotrophic Microbiota from the Oligotrophic Waters of Lake Vostok, Antarctica |
topic_facet |
Antarctica lake fresh water microbiota 16S rDNA chemoorganotrophs Medicine R |
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 |
Article in Journal/Newspaper |
author |
Ekaterina Y. Epova Alexei B. Shevelev Ramazan M. Akbayev Yulia K. Biryukova Marina V. Zylkova Elena S. Bogdanova Marina A. Guseva Yaroslav Y. Tynio Vladislav V. Egorov |
author_facet |
Ekaterina Y. Epova Alexei B. Shevelev Ramazan M. Akbayev Yulia K. Biryukova Marina V. Zylkova Elena S. Bogdanova Marina A. Guseva Yaroslav Y. Tynio Vladislav V. Egorov |
author_sort |
Ekaterina Y. Epova |
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 AG |
publishDate |
2022 |
url |
https://doi.org/10.3390/ijerph19074025 https://doaj.org/article/f5cfba23cc0c4608b8d1a78f54c512a7 |
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 |
International Journal of Environmental Research and Public Health, Vol 19, Iss 4025, p 4025 (2022) |
op_relation |
https://www.mdpi.com/1660-4601/19/7/4025 https://doaj.org/toc/1661-7827 https://doaj.org/toc/1660-4601 doi:10.3390/ijerph19074025 1660-4601 1661-7827 https://doaj.org/article/f5cfba23cc0c4608b8d1a78f54c512a7 |
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_ |
1766191845062213632 |