Metagenomic analysis reveals that modern microbialites and polar microbial mats have similar taxonomic and functional potential
Within the subarctic climate of Clinton Creek, Yukon, Canada, lies an abandoned and flooded open-pit asbestos mine that harbors rapidly growing microbialites. To understand their formation we completed a metagenomic community profile of the microbialites and their surrounding sediments. Assembled me...
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ftdoajarticles:oai:doaj.org/article:8e61f28eac364951b94527f183a9fab0 2023-05-15T13:53:49+02:00 Metagenomic analysis reveals that modern microbialites and polar microbial mats have similar taxonomic and functional potential Richard Allen White III Ian Malcolm Power Gregory M Dipple Gordon eSoutham Curtis A Suttle 2015-09-01T00:00:00Z https://doi.org/10.3389/fmicb.2015.00966 https://doaj.org/article/8e61f28eac364951b94527f183a9fab0 EN eng Frontiers Media S.A. http://journal.frontiersin.org/Journal/10.3389/fmicb.2015.00966/full https://doaj.org/toc/1664-302X 1664-302X doi:10.3389/fmicb.2015.00966 https://doaj.org/article/8e61f28eac364951b94527f183a9fab0 Frontiers in Microbiology, Vol 6 (2015) Carbon Sequestration Cyanobacteria Microbialites Gemmatimonadetes Metagenomic Assembly Non-lifthying microbial mats Microbiology QR1-502 article 2015 ftdoajarticles https://doi.org/10.3389/fmicb.2015.00966 2022-12-30T22:15:14Z Within the subarctic climate of Clinton Creek, Yukon, Canada, lies an abandoned and flooded open-pit asbestos mine that harbors rapidly growing microbialites. To understand their formation we completed a metagenomic community profile of the microbialites and their surrounding sediments. Assembled metagenomic data revealed that bacteria within the phylum Proteobacteria numerically dominated this system, although the relative abundances of taxa within the phylum varied among environments. Bacteria belonging to Alphaproteobacteria and Gammaproteobacteria were dominant in the microbialites and sediments, respectively. The microbialites were also home to many other groups associated with microbialite formation including filamentous cyanobacteria and dissimilatory sulfate-reducing Deltaproteobacteria, consistent with the idea of a shared global microbialite microbiome. Other members were present that are typically not associated with microbialites including Gemmatimonadetes and iron-oxidizing Betaproteobacteria, which participate in carbon metabolism and iron cycling. Compared to the sediments, the microbialite microbiome has significantly more genes associated with photosynthetic processes (e.g., photosystem II reaction centers, carotenoid and chlorophyll biosynthesis) and carbon fixation (e.g., CO dehydrogenase). The Clinton Creek microbialite communities had strikingly similar functional potentials to non-lithifying microbial mats from the Canadian High Arctic and Antarctica, but are functionally distinct, from non-lithifying mats or biofilms from Yellowstone. Clinton Creek microbialites also share metabolic genes (R2 < 0.750) with freshwater microbial mats from Cuatro CiƩnegas, Mexico, but are more similar to polar Arctic mats (R2 > 0.900). These metagenomic profiles from an anthropogenic microbialite-forming ecosystem provide context to microbialite formation on a human-relevant timescale. Article in Journal/Newspaper Antarc* Antarctica Arctic Subarctic Yukon Directory of Open Access Journals: DOAJ Articles Arctic Yukon Canada Clinton Creek ENVELOPE(-140.605,-140.605,64.401,64.401) Frontiers in Microbiology 6 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Carbon Sequestration Cyanobacteria Microbialites Gemmatimonadetes Metagenomic Assembly Non-lifthying microbial mats Microbiology QR1-502 |
spellingShingle |
Carbon Sequestration Cyanobacteria Microbialites Gemmatimonadetes Metagenomic Assembly Non-lifthying microbial mats Microbiology QR1-502 Richard Allen White III Ian Malcolm Power Gregory M Dipple Gordon eSoutham Curtis A Suttle Metagenomic analysis reveals that modern microbialites and polar microbial mats have similar taxonomic and functional potential |
topic_facet |
Carbon Sequestration Cyanobacteria Microbialites Gemmatimonadetes Metagenomic Assembly Non-lifthying microbial mats Microbiology QR1-502 |
description |
Within the subarctic climate of Clinton Creek, Yukon, Canada, lies an abandoned and flooded open-pit asbestos mine that harbors rapidly growing microbialites. To understand their formation we completed a metagenomic community profile of the microbialites and their surrounding sediments. Assembled metagenomic data revealed that bacteria within the phylum Proteobacteria numerically dominated this system, although the relative abundances of taxa within the phylum varied among environments. Bacteria belonging to Alphaproteobacteria and Gammaproteobacteria were dominant in the microbialites and sediments, respectively. The microbialites were also home to many other groups associated with microbialite formation including filamentous cyanobacteria and dissimilatory sulfate-reducing Deltaproteobacteria, consistent with the idea of a shared global microbialite microbiome. Other members were present that are typically not associated with microbialites including Gemmatimonadetes and iron-oxidizing Betaproteobacteria, which participate in carbon metabolism and iron cycling. Compared to the sediments, the microbialite microbiome has significantly more genes associated with photosynthetic processes (e.g., photosystem II reaction centers, carotenoid and chlorophyll biosynthesis) and carbon fixation (e.g., CO dehydrogenase). The Clinton Creek microbialite communities had strikingly similar functional potentials to non-lithifying microbial mats from the Canadian High Arctic and Antarctica, but are functionally distinct, from non-lithifying mats or biofilms from Yellowstone. Clinton Creek microbialites also share metabolic genes (R2 < 0.750) with freshwater microbial mats from Cuatro CiƩnegas, Mexico, but are more similar to polar Arctic mats (R2 > 0.900). These metagenomic profiles from an anthropogenic microbialite-forming ecosystem provide context to microbialite formation on a human-relevant timescale. |
format |
Article in Journal/Newspaper |
author |
Richard Allen White III Ian Malcolm Power Gregory M Dipple Gordon eSoutham Curtis A Suttle |
author_facet |
Richard Allen White III Ian Malcolm Power Gregory M Dipple Gordon eSoutham Curtis A Suttle |
author_sort |
Richard Allen White III |
title |
Metagenomic analysis reveals that modern microbialites and polar microbial mats have similar taxonomic and functional potential |
title_short |
Metagenomic analysis reveals that modern microbialites and polar microbial mats have similar taxonomic and functional potential |
title_full |
Metagenomic analysis reveals that modern microbialites and polar microbial mats have similar taxonomic and functional potential |
title_fullStr |
Metagenomic analysis reveals that modern microbialites and polar microbial mats have similar taxonomic and functional potential |
title_full_unstemmed |
Metagenomic analysis reveals that modern microbialites and polar microbial mats have similar taxonomic and functional potential |
title_sort |
metagenomic analysis reveals that modern microbialites and polar microbial mats have similar taxonomic and functional potential |
publisher |
Frontiers Media S.A. |
publishDate |
2015 |
url |
https://doi.org/10.3389/fmicb.2015.00966 https://doaj.org/article/8e61f28eac364951b94527f183a9fab0 |
long_lat |
ENVELOPE(-140.605,-140.605,64.401,64.401) |
geographic |
Arctic Yukon Canada Clinton Creek |
geographic_facet |
Arctic Yukon Canada Clinton Creek |
genre |
Antarc* Antarctica Arctic Subarctic Yukon |
genre_facet |
Antarc* Antarctica Arctic Subarctic Yukon |
op_source |
Frontiers in Microbiology, Vol 6 (2015) |
op_relation |
http://journal.frontiersin.org/Journal/10.3389/fmicb.2015.00966/full https://doaj.org/toc/1664-302X 1664-302X doi:10.3389/fmicb.2015.00966 https://doaj.org/article/8e61f28eac364951b94527f183a9fab0 |
op_doi |
https://doi.org/10.3389/fmicb.2015.00966 |
container_title |
Frontiers in Microbiology |
container_volume |
6 |
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1766259269763596288 |