Discovery of a novel bacterial class with the capacity to drive sulfur cycling and microbiome structure in a paleo-ocean analog
Abstract Uncultivated microbial taxa represent a large fraction of global microbial diversity and likely drive numerous biogeochemical transformations in natural ecosystems. Geographically isolated, polar ecosystems are complex microbial biomes and refuges of underexplored taxonomic and functional b...
Published in: | ISME Communications |
---|---|
Main Authors: | , , |
Other Authors: | , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Oxford University Press (OUP)
2023
|
Subjects: | |
Online Access: | http://dx.doi.org/10.1038/s43705-023-00287-9 https://www.nature.com/articles/s43705-023-00287-9.pdf https://www.nature.com/articles/s43705-023-00287-9 https://academic.oup.com/ismecommun/article-pdf/3/1/82/56376446/43705_2023_article_287.pdf |
id |
croxfordunivpr:10.1038/s43705-023-00287-9 |
---|---|
record_format |
openpolar |
spelling |
croxfordunivpr:10.1038/s43705-023-00287-9 2024-04-07T07:49:48+00:00 Discovery of a novel bacterial class with the capacity to drive sulfur cycling and microbiome structure in a paleo-ocean analog Vigneron, Adrien Vincent, Warwick F Lovejoy, Connie Canada First Research Excellence Fund Gouvernement du Canada | Natural Sciences and Engineering Research Council of Canada Gouvernement du Canada | Réseaux de centres d'excellence | AUTO21 Network of Centres of Excellence Canada First Research Excellence Fund Gouvernement du Canada | Natural Sciences and Engineering Research Council of Canada Gouvernement du Canada | Réseaux de centres d'excellence | AUTO21 Network of Centres of Excellence Canada First Research Excellence Fund Canada First Research Excellence Fund Gouvernement du Canada | Réseaux de centres d'excellence | AUTO21 Network of Centres of Excellence 2023 http://dx.doi.org/10.1038/s43705-023-00287-9 https://www.nature.com/articles/s43705-023-00287-9.pdf https://www.nature.com/articles/s43705-023-00287-9 https://academic.oup.com/ismecommun/article-pdf/3/1/82/56376446/43705_2023_article_287.pdf en eng Oxford University Press (OUP) https://creativecommons.org/licenses/by/4.0/ https://creativecommons.org/licenses/by/4.0 https://creativecommons.org/licenses/by/4.0 ISME Communications volume 3, issue 1 ISSN 2730-6151 General Medicine journal-article 2023 croxfordunivpr https://doi.org/10.1038/s43705-023-00287-9 2024-03-08T02:58:30Z Abstract Uncultivated microbial taxa represent a large fraction of global microbial diversity and likely drive numerous biogeochemical transformations in natural ecosystems. Geographically isolated, polar ecosystems are complex microbial biomes and refuges of underexplored taxonomic and functional biodiversity. Combining amplicon sequencing with genome-centric metagenomic analysis of samples from one of the world’s northernmost lakes (Lake A, Ellesmere Island, Canadian High Arctic), we identified a novel bacterial taxon that dominates in the bottom layer of anoxic, sulfidic, relict sea water that was isolated from the Arctic Ocean some 3000 years ago. Based on phylogenomic comparative analyses, we propose that these bacteria represent a new Class within the poorly described Electryoneota/AABM5-125-24 candidate phylum. This novel class, for which we propose the name Tariuqbacteria, may be either a relict of ancient ocean conditions or endemic to this High Arctic system, provisionally providing a rare example of high-taxonomy level endemism. Consistent with the geochemistry of the bottom water, the genetic composition of the Candidatus Tariuqbacter genome revealed a strictly anaerobic lifestyle with the potential for sulfate and sulfur reduction, a versatile carbon metabolism and the capability to eliminate competing bacteria through methylarsenite production, suggesting an allelochemical influence on microbiome structure by this planktonic microbe. Article in Journal/Newspaper Arctic Arctic Ocean Ellesmere Island Oxford University Press Arctic Arctic Ocean Ellesmere Island ISME Communications 3 1 |
institution |
Open Polar |
collection |
Oxford University Press |
op_collection_id |
croxfordunivpr |
language |
English |
topic |
General Medicine |
spellingShingle |
General Medicine Vigneron, Adrien Vincent, Warwick F Lovejoy, Connie Discovery of a novel bacterial class with the capacity to drive sulfur cycling and microbiome structure in a paleo-ocean analog |
topic_facet |
General Medicine |
description |
Abstract Uncultivated microbial taxa represent a large fraction of global microbial diversity and likely drive numerous biogeochemical transformations in natural ecosystems. Geographically isolated, polar ecosystems are complex microbial biomes and refuges of underexplored taxonomic and functional biodiversity. Combining amplicon sequencing with genome-centric metagenomic analysis of samples from one of the world’s northernmost lakes (Lake A, Ellesmere Island, Canadian High Arctic), we identified a novel bacterial taxon that dominates in the bottom layer of anoxic, sulfidic, relict sea water that was isolated from the Arctic Ocean some 3000 years ago. Based on phylogenomic comparative analyses, we propose that these bacteria represent a new Class within the poorly described Electryoneota/AABM5-125-24 candidate phylum. This novel class, for which we propose the name Tariuqbacteria, may be either a relict of ancient ocean conditions or endemic to this High Arctic system, provisionally providing a rare example of high-taxonomy level endemism. Consistent with the geochemistry of the bottom water, the genetic composition of the Candidatus Tariuqbacter genome revealed a strictly anaerobic lifestyle with the potential for sulfate and sulfur reduction, a versatile carbon metabolism and the capability to eliminate competing bacteria through methylarsenite production, suggesting an allelochemical influence on microbiome structure by this planktonic microbe. |
author2 |
Canada First Research Excellence Fund Gouvernement du Canada | Natural Sciences and Engineering Research Council of Canada Gouvernement du Canada | Réseaux de centres d'excellence | AUTO21 Network of Centres of Excellence Canada First Research Excellence Fund Gouvernement du Canada | Natural Sciences and Engineering Research Council of Canada Gouvernement du Canada | Réseaux de centres d'excellence | AUTO21 Network of Centres of Excellence Canada First Research Excellence Fund Canada First Research Excellence Fund Gouvernement du Canada | Réseaux de centres d'excellence | AUTO21 Network of Centres of Excellence |
format |
Article in Journal/Newspaper |
author |
Vigneron, Adrien Vincent, Warwick F Lovejoy, Connie |
author_facet |
Vigneron, Adrien Vincent, Warwick F Lovejoy, Connie |
author_sort |
Vigneron, Adrien |
title |
Discovery of a novel bacterial class with the capacity to drive sulfur cycling and microbiome structure in a paleo-ocean analog |
title_short |
Discovery of a novel bacterial class with the capacity to drive sulfur cycling and microbiome structure in a paleo-ocean analog |
title_full |
Discovery of a novel bacterial class with the capacity to drive sulfur cycling and microbiome structure in a paleo-ocean analog |
title_fullStr |
Discovery of a novel bacterial class with the capacity to drive sulfur cycling and microbiome structure in a paleo-ocean analog |
title_full_unstemmed |
Discovery of a novel bacterial class with the capacity to drive sulfur cycling and microbiome structure in a paleo-ocean analog |
title_sort |
discovery of a novel bacterial class with the capacity to drive sulfur cycling and microbiome structure in a paleo-ocean analog |
publisher |
Oxford University Press (OUP) |
publishDate |
2023 |
url |
http://dx.doi.org/10.1038/s43705-023-00287-9 https://www.nature.com/articles/s43705-023-00287-9.pdf https://www.nature.com/articles/s43705-023-00287-9 https://academic.oup.com/ismecommun/article-pdf/3/1/82/56376446/43705_2023_article_287.pdf |
geographic |
Arctic Arctic Ocean Ellesmere Island |
geographic_facet |
Arctic Arctic Ocean Ellesmere Island |
genre |
Arctic Arctic Ocean Ellesmere Island |
genre_facet |
Arctic Arctic Ocean Ellesmere Island |
op_source |
ISME Communications volume 3, issue 1 ISSN 2730-6151 |
op_rights |
https://creativecommons.org/licenses/by/4.0/ https://creativecommons.org/licenses/by/4.0 https://creativecommons.org/licenses/by/4.0 |
op_doi |
https://doi.org/10.1038/s43705-023-00287-9 |
container_title |
ISME Communications |
container_volume |
3 |
container_issue |
1 |
_version_ |
1795664309577056256 |