Community Structures of Bacteria, Archaea, and Eukaryotic Microbes in the Freshwater Glacier Lake Yukidori-Ike in Langhovde, East Antarctica
Since most studies about community structures of microorganisms in Antarctic terrestrial lakes using molecular biological tools are mainly focused on bacteria, limited information is available about archaeal and eukaryotic microbial diversity. In this study, the biodiversity of microorganisms belong...
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ftdoajarticles:oai:doaj.org/article:a1678c77a3d545cbaf481916fa671f99 2023-05-15T14:02:16+02:00 Community Structures of Bacteria, Archaea, and Eukaryotic Microbes in the Freshwater Glacier Lake Yukidori-Ike in Langhovde, East Antarctica Aoi Chaya Norio Kurosawa Akinori Kawamata Makiko Kosugi Satoshi Imura 2019-07-01T00:00:00Z https://doi.org/10.3390/d11070105 https://doaj.org/article/a1678c77a3d545cbaf481916fa671f99 EN eng MDPI AG https://www.mdpi.com/1424-2818/11/7/105 https://doaj.org/toc/1424-2818 1424-2818 doi:10.3390/d11070105 https://doaj.org/article/a1678c77a3d545cbaf481916fa671f99 Diversity, Vol 11, Iss 7, p 105 (2019) Antarctica freshwater lake Yukidori-Ike bacteria archaea eukaryotic microorganism SSU rRNA gene clone library analysis Biology (General) QH301-705.5 article 2019 ftdoajarticles https://doi.org/10.3390/d11070105 2022-12-30T20:10:26Z Since most studies about community structures of microorganisms in Antarctic terrestrial lakes using molecular biological tools are mainly focused on bacteria, limited information is available about archaeal and eukaryotic microbial diversity. In this study, the biodiversity of microorganisms belonging to all three domains in a typical Antarctic freshwater glacier lake (Yukidori-Ike) was revealed using small subunit ribosomal RNA (SSU rRNA) clone library analysis. The bacterial clones were grouped into 102 operational taxonomic units (OTUs) and showed significant biodiversity. Betaproteobacteria were most frequently detected, followed by Cyanobacteria, Bacteroidetes, and Firmicutes as major lineages. In contrast to the bacterial diversity, much lower archaeal diversity, consisting of only two OTUs of methanogens, was observed. In the eukaryotic microbial community consisting of 20 OTUs, Tardigradal DNA was remarkably frequently detected. Genera affiliated with the phyla Ciliophora, Cryptomycota, Chlorophyta, Bacillariophyta, and Apusozoa were also detected. The biodiversity and species compositions of the whole microbial community of Lake Yukidori-Ike are similar to those of freshwater environments in temperate regions but are different from saline lakes in Antarctica, indicating that the salinity seems to affect the microbial composition more than the temperature. Article in Journal/Newspaper Antarc* Antarctic Antarctica East Antarctica Directory of Open Access Journals: DOAJ Articles Antarctic East Antarctica Langhovde ENVELOPE(39.733,39.733,-69.217,-69.217) Yukidori Ike ENVELOPE(39.769,39.769,-69.240,-69.240) Diversity 11 7 105 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Antarctica freshwater lake Yukidori-Ike bacteria archaea eukaryotic microorganism SSU rRNA gene clone library analysis Biology (General) QH301-705.5 |
spellingShingle |
Antarctica freshwater lake Yukidori-Ike bacteria archaea eukaryotic microorganism SSU rRNA gene clone library analysis Biology (General) QH301-705.5 Aoi Chaya Norio Kurosawa Akinori Kawamata Makiko Kosugi Satoshi Imura Community Structures of Bacteria, Archaea, and Eukaryotic Microbes in the Freshwater Glacier Lake Yukidori-Ike in Langhovde, East Antarctica |
topic_facet |
Antarctica freshwater lake Yukidori-Ike bacteria archaea eukaryotic microorganism SSU rRNA gene clone library analysis Biology (General) QH301-705.5 |
description |
Since most studies about community structures of microorganisms in Antarctic terrestrial lakes using molecular biological tools are mainly focused on bacteria, limited information is available about archaeal and eukaryotic microbial diversity. In this study, the biodiversity of microorganisms belonging to all three domains in a typical Antarctic freshwater glacier lake (Yukidori-Ike) was revealed using small subunit ribosomal RNA (SSU rRNA) clone library analysis. The bacterial clones were grouped into 102 operational taxonomic units (OTUs) and showed significant biodiversity. Betaproteobacteria were most frequently detected, followed by Cyanobacteria, Bacteroidetes, and Firmicutes as major lineages. In contrast to the bacterial diversity, much lower archaeal diversity, consisting of only two OTUs of methanogens, was observed. In the eukaryotic microbial community consisting of 20 OTUs, Tardigradal DNA was remarkably frequently detected. Genera affiliated with the phyla Ciliophora, Cryptomycota, Chlorophyta, Bacillariophyta, and Apusozoa were also detected. The biodiversity and species compositions of the whole microbial community of Lake Yukidori-Ike are similar to those of freshwater environments in temperate regions but are different from saline lakes in Antarctica, indicating that the salinity seems to affect the microbial composition more than the temperature. |
format |
Article in Journal/Newspaper |
author |
Aoi Chaya Norio Kurosawa Akinori Kawamata Makiko Kosugi Satoshi Imura |
author_facet |
Aoi Chaya Norio Kurosawa Akinori Kawamata Makiko Kosugi Satoshi Imura |
author_sort |
Aoi Chaya |
title |
Community Structures of Bacteria, Archaea, and Eukaryotic Microbes in the Freshwater Glacier Lake Yukidori-Ike in Langhovde, East Antarctica |
title_short |
Community Structures of Bacteria, Archaea, and Eukaryotic Microbes in the Freshwater Glacier Lake Yukidori-Ike in Langhovde, East Antarctica |
title_full |
Community Structures of Bacteria, Archaea, and Eukaryotic Microbes in the Freshwater Glacier Lake Yukidori-Ike in Langhovde, East Antarctica |
title_fullStr |
Community Structures of Bacteria, Archaea, and Eukaryotic Microbes in the Freshwater Glacier Lake Yukidori-Ike in Langhovde, East Antarctica |
title_full_unstemmed |
Community Structures of Bacteria, Archaea, and Eukaryotic Microbes in the Freshwater Glacier Lake Yukidori-Ike in Langhovde, East Antarctica |
title_sort |
community structures of bacteria, archaea, and eukaryotic microbes in the freshwater glacier lake yukidori-ike in langhovde, east antarctica |
publisher |
MDPI AG |
publishDate |
2019 |
url |
https://doi.org/10.3390/d11070105 https://doaj.org/article/a1678c77a3d545cbaf481916fa671f99 |
long_lat |
ENVELOPE(39.733,39.733,-69.217,-69.217) ENVELOPE(39.769,39.769,-69.240,-69.240) |
geographic |
Antarctic East Antarctica Langhovde Yukidori Ike |
geographic_facet |
Antarctic East Antarctica Langhovde Yukidori Ike |
genre |
Antarc* Antarctic Antarctica East Antarctica |
genre_facet |
Antarc* Antarctic Antarctica East Antarctica |
op_source |
Diversity, Vol 11, Iss 7, p 105 (2019) |
op_relation |
https://www.mdpi.com/1424-2818/11/7/105 https://doaj.org/toc/1424-2818 1424-2818 doi:10.3390/d11070105 https://doaj.org/article/a1678c77a3d545cbaf481916fa671f99 |
op_doi |
https://doi.org/10.3390/d11070105 |
container_title |
Diversity |
container_volume |
11 |
container_issue |
7 |
container_start_page |
105 |
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1766272428510543872 |