Table_1_Microbial Diversity of Pinnacle and Conical Microbial Mats in the Perennially Ice-Covered Lake Untersee, East Antarctica.XLSX
Antarctic perennially ice-covered lakes provide a stable low-disturbance environment where complex microbially mediated structures can grow. Lake Untersee, an ultra-oligotrophic lake in East Antarctica, has the lake floor covered in benthic microbial mat communities, where laminated organo-sedimenta...
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ftfrontimediafig:oai:figshare.com:article/13359986 2023-05-15T13:30:57+02:00 Table_1_Microbial Diversity of Pinnacle and Conical Microbial Mats in the Perennially Ice-Covered Lake Untersee, East Antarctica.XLSX Carla Greco Dale T. Andersen Ian Hawes Alexander M. C. Bowles Marian L. Yallop Gary Barker Anne D. Jungblut 2020-12-10T14:15:34Z https://doi.org/10.3389/fmicb.2020.607251.s001 https://figshare.com/articles/dataset/Table_1_Microbial_Diversity_of_Pinnacle_and_Conical_Microbial_Mats_in_the_Perennially_Ice-Covered_Lake_Untersee_East_Antarctica_XLSX/13359986 unknown doi:10.3389/fmicb.2020.607251.s001 https://figshare.com/articles/dataset/Table_1_Microbial_Diversity_of_Pinnacle_and_Conical_Microbial_Mats_in_the_Perennially_Ice-Covered_Lake_Untersee_East_Antarctica_XLSX/13359986 CC BY 4.0 CC-BY Microbiology Microbial Genetics Microbial Ecology Mycology 16S rRNA gene 18S rRNA gene microbial mat pinnacles cones stromatolite lake Antarctica Dataset 2020 ftfrontimediafig https://doi.org/10.3389/fmicb.2020.607251.s001 2020-12-16T23:59:14Z Antarctic perennially ice-covered lakes provide a stable low-disturbance environment where complex microbially mediated structures can grow. Lake Untersee, an ultra-oligotrophic lake in East Antarctica, has the lake floor covered in benthic microbial mat communities, where laminated organo-sedimentary structures form with three distinct, sympatric morphologies: small, elongated cuspate pinnacles, large complex cones and flat mats. We examined the diversity of prokaryotes and eukaryotes in pinnacles, cones and flat microbial mats using high-throughput sequencing of 16S and 18S rRNA genes and assessed how microbial composition may underpin the formation of these distinct macroscopic mat morphologies under the same environmental conditions. Our analysis identified distinct clustering of microbial communities according to mat morphology. The prokaryotic communities were dominated by Cyanobacteria, Proteobacteria, Verrucomicrobia, Planctomycetes, and Actinobacteria. While filamentous Tychonema cyanobacteria were common in all mat types, Leptolyngbya showed an increased relative abundance in the pinnacle structures only. Our study provides the first report of the eukaryotic community structure of Lake Untersee benthic mats, which was dominated by Ciliophora, Chlorophyta, Fungi, Cercozoa, and Discicristata. The eukaryote richness was lower than for prokaryote assemblages and no distinct clustering was observed between mat morphologies. These findings suggest that cyanobacterial assemblages and potentially other bacteria and eukaryotes may influence structure morphogenesis, allowing distinct structures to form across a small spatial scale. Dataset Antarc* Antarctic Antarctica East Antarctica Frontiers: Figshare Antarctic East Antarctica Untersee ENVELOPE(13.467,13.467,-71.350,-71.350) Pinnacle ENVELOPE(-54.900,-54.900,-61.067,-61.067) |
institution |
Open Polar |
collection |
Frontiers: Figshare |
op_collection_id |
ftfrontimediafig |
language |
unknown |
topic |
Microbiology Microbial Genetics Microbial Ecology Mycology 16S rRNA gene 18S rRNA gene microbial mat pinnacles cones stromatolite lake Antarctica |
spellingShingle |
Microbiology Microbial Genetics Microbial Ecology Mycology 16S rRNA gene 18S rRNA gene microbial mat pinnacles cones stromatolite lake Antarctica Carla Greco Dale T. Andersen Ian Hawes Alexander M. C. Bowles Marian L. Yallop Gary Barker Anne D. Jungblut Table_1_Microbial Diversity of Pinnacle and Conical Microbial Mats in the Perennially Ice-Covered Lake Untersee, East Antarctica.XLSX |
topic_facet |
Microbiology Microbial Genetics Microbial Ecology Mycology 16S rRNA gene 18S rRNA gene microbial mat pinnacles cones stromatolite lake Antarctica |
description |
Antarctic perennially ice-covered lakes provide a stable low-disturbance environment where complex microbially mediated structures can grow. Lake Untersee, an ultra-oligotrophic lake in East Antarctica, has the lake floor covered in benthic microbial mat communities, where laminated organo-sedimentary structures form with three distinct, sympatric morphologies: small, elongated cuspate pinnacles, large complex cones and flat mats. We examined the diversity of prokaryotes and eukaryotes in pinnacles, cones and flat microbial mats using high-throughput sequencing of 16S and 18S rRNA genes and assessed how microbial composition may underpin the formation of these distinct macroscopic mat morphologies under the same environmental conditions. Our analysis identified distinct clustering of microbial communities according to mat morphology. The prokaryotic communities were dominated by Cyanobacteria, Proteobacteria, Verrucomicrobia, Planctomycetes, and Actinobacteria. While filamentous Tychonema cyanobacteria were common in all mat types, Leptolyngbya showed an increased relative abundance in the pinnacle structures only. Our study provides the first report of the eukaryotic community structure of Lake Untersee benthic mats, which was dominated by Ciliophora, Chlorophyta, Fungi, Cercozoa, and Discicristata. The eukaryote richness was lower than for prokaryote assemblages and no distinct clustering was observed between mat morphologies. These findings suggest that cyanobacterial assemblages and potentially other bacteria and eukaryotes may influence structure morphogenesis, allowing distinct structures to form across a small spatial scale. |
format |
Dataset |
author |
Carla Greco Dale T. Andersen Ian Hawes Alexander M. C. Bowles Marian L. Yallop Gary Barker Anne D. Jungblut |
author_facet |
Carla Greco Dale T. Andersen Ian Hawes Alexander M. C. Bowles Marian L. Yallop Gary Barker Anne D. Jungblut |
author_sort |
Carla Greco |
title |
Table_1_Microbial Diversity of Pinnacle and Conical Microbial Mats in the Perennially Ice-Covered Lake Untersee, East Antarctica.XLSX |
title_short |
Table_1_Microbial Diversity of Pinnacle and Conical Microbial Mats in the Perennially Ice-Covered Lake Untersee, East Antarctica.XLSX |
title_full |
Table_1_Microbial Diversity of Pinnacle and Conical Microbial Mats in the Perennially Ice-Covered Lake Untersee, East Antarctica.XLSX |
title_fullStr |
Table_1_Microbial Diversity of Pinnacle and Conical Microbial Mats in the Perennially Ice-Covered Lake Untersee, East Antarctica.XLSX |
title_full_unstemmed |
Table_1_Microbial Diversity of Pinnacle and Conical Microbial Mats in the Perennially Ice-Covered Lake Untersee, East Antarctica.XLSX |
title_sort |
table_1_microbial diversity of pinnacle and conical microbial mats in the perennially ice-covered lake untersee, east antarctica.xlsx |
publishDate |
2020 |
url |
https://doi.org/10.3389/fmicb.2020.607251.s001 https://figshare.com/articles/dataset/Table_1_Microbial_Diversity_of_Pinnacle_and_Conical_Microbial_Mats_in_the_Perennially_Ice-Covered_Lake_Untersee_East_Antarctica_XLSX/13359986 |
long_lat |
ENVELOPE(13.467,13.467,-71.350,-71.350) ENVELOPE(-54.900,-54.900,-61.067,-61.067) |
geographic |
Antarctic East Antarctica Untersee Pinnacle |
geographic_facet |
Antarctic East Antarctica Untersee Pinnacle |
genre |
Antarc* Antarctic Antarctica East Antarctica |
genre_facet |
Antarc* Antarctic Antarctica East Antarctica |
op_relation |
doi:10.3389/fmicb.2020.607251.s001 https://figshare.com/articles/dataset/Table_1_Microbial_Diversity_of_Pinnacle_and_Conical_Microbial_Mats_in_the_Perennially_Ice-Covered_Lake_Untersee_East_Antarctica_XLSX/13359986 |
op_rights |
CC BY 4.0 |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.3389/fmicb.2020.607251.s001 |
_version_ |
1766014479213002752 |