Comparative Analysis of Microbial Diversity Across Temperature Gradients in Hot Springs From Yellowstone and Iceland
Geothermal hot springs are a natural setting to study microbial adaptation to a wide range of temperatures reaching up to boiling. Temperature gradients lead to distinct microbial communities that inhabit their optimum niches. We sampled three alkaline, high temperature (80–100°C) hot springs in Yel...
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ftdoajarticles:oai:doaj.org/article:9af78c83bbc84e288e1a882ae03160ec 2023-05-15T16:46:19+02:00 Comparative Analysis of Microbial Diversity Across Temperature Gradients in Hot Springs From Yellowstone and Iceland Peter T. Podar Zamin Yang Snædís H. Björnsdóttir Mircea Podar 2020-07-01T00:00:00Z https://doi.org/10.3389/fmicb.2020.01625 https://doaj.org/article/9af78c83bbc84e288e1a882ae03160ec EN eng Frontiers Media S.A. https://www.frontiersin.org/article/10.3389/fmicb.2020.01625/full https://doaj.org/toc/1664-302X 1664-302X doi:10.3389/fmicb.2020.01625 https://doaj.org/article/9af78c83bbc84e288e1a882ae03160ec Frontiers in Microbiology, Vol 11 (2020) hot springs thermophiles microbial ecology rRNA amplicons biogeography Microbiology QR1-502 article 2020 ftdoajarticles https://doi.org/10.3389/fmicb.2020.01625 2022-12-31T14:21:47Z Geothermal hot springs are a natural setting to study microbial adaptation to a wide range of temperatures reaching up to boiling. Temperature gradients lead to distinct microbial communities that inhabit their optimum niches. We sampled three alkaline, high temperature (80–100°C) hot springs in Yellowstone and Iceland that had cooling outflows and whose microbial communities had not been studied previously. The microbial composition in sediments and mats was determined by DNA sequencing of rRNA gene amplicons. Over three dozen phyla of Archaea and Bacteria were identified, representing over 1700 distinct organisms. We observed a significant non-linear reduction in the number of microbial taxa as the temperature increased from warm (38°C) to boiling. At high taxonomic levels, the community structure was similar between the Yellowstone and Iceland hot springs. We identified potential endemism at the genus level, especially in thermophilic phototrophs, which may have been potentially driven by distinct environmental conditions and dispersal limitations. Article in Journal/Newspaper Iceland Directory of Open Access Journals: DOAJ Articles Frontiers in Microbiology 11 |
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Open Polar |
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Directory of Open Access Journals: DOAJ Articles |
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ftdoajarticles |
language |
English |
topic |
hot springs thermophiles microbial ecology rRNA amplicons biogeography Microbiology QR1-502 |
spellingShingle |
hot springs thermophiles microbial ecology rRNA amplicons biogeography Microbiology QR1-502 Peter T. Podar Zamin Yang Snædís H. Björnsdóttir Mircea Podar Comparative Analysis of Microbial Diversity Across Temperature Gradients in Hot Springs From Yellowstone and Iceland |
topic_facet |
hot springs thermophiles microbial ecology rRNA amplicons biogeography Microbiology QR1-502 |
description |
Geothermal hot springs are a natural setting to study microbial adaptation to a wide range of temperatures reaching up to boiling. Temperature gradients lead to distinct microbial communities that inhabit their optimum niches. We sampled three alkaline, high temperature (80–100°C) hot springs in Yellowstone and Iceland that had cooling outflows and whose microbial communities had not been studied previously. The microbial composition in sediments and mats was determined by DNA sequencing of rRNA gene amplicons. Over three dozen phyla of Archaea and Bacteria were identified, representing over 1700 distinct organisms. We observed a significant non-linear reduction in the number of microbial taxa as the temperature increased from warm (38°C) to boiling. At high taxonomic levels, the community structure was similar between the Yellowstone and Iceland hot springs. We identified potential endemism at the genus level, especially in thermophilic phototrophs, which may have been potentially driven by distinct environmental conditions and dispersal limitations. |
format |
Article in Journal/Newspaper |
author |
Peter T. Podar Zamin Yang Snædís H. Björnsdóttir Mircea Podar |
author_facet |
Peter T. Podar Zamin Yang Snædís H. Björnsdóttir Mircea Podar |
author_sort |
Peter T. Podar |
title |
Comparative Analysis of Microbial Diversity Across Temperature Gradients in Hot Springs From Yellowstone and Iceland |
title_short |
Comparative Analysis of Microbial Diversity Across Temperature Gradients in Hot Springs From Yellowstone and Iceland |
title_full |
Comparative Analysis of Microbial Diversity Across Temperature Gradients in Hot Springs From Yellowstone and Iceland |
title_fullStr |
Comparative Analysis of Microbial Diversity Across Temperature Gradients in Hot Springs From Yellowstone and Iceland |
title_full_unstemmed |
Comparative Analysis of Microbial Diversity Across Temperature Gradients in Hot Springs From Yellowstone and Iceland |
title_sort |
comparative analysis of microbial diversity across temperature gradients in hot springs from yellowstone and iceland |
publisher |
Frontiers Media S.A. |
publishDate |
2020 |
url |
https://doi.org/10.3389/fmicb.2020.01625 https://doaj.org/article/9af78c83bbc84e288e1a882ae03160ec |
genre |
Iceland |
genre_facet |
Iceland |
op_source |
Frontiers in Microbiology, Vol 11 (2020) |
op_relation |
https://www.frontiersin.org/article/10.3389/fmicb.2020.01625/full https://doaj.org/toc/1664-302X 1664-302X doi:10.3389/fmicb.2020.01625 https://doaj.org/article/9af78c83bbc84e288e1a882ae03160ec |
op_doi |
https://doi.org/10.3389/fmicb.2020.01625 |
container_title |
Frontiers in Microbiology |
container_volume |
11 |
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1766036409977667584 |