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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ftosti:oai:osti.gov:1649416 2023-07-30T04:04:19+02:00 Comparative Analysis of Microbial Diversity Across Temperature Gradients in Hot Springs From Yellowstone and Iceland Podar, Peter T. Yang, Zamin Koo Björnsdóttir, Snædís H. Podar, Mircea 2023-07-03 application/pdf http://www.osti.gov/servlets/purl/1649416 https://www.osti.gov/biblio/1649416 https://doi.org/10.3389/fmicb.2020.01625 unknown http://www.osti.gov/servlets/purl/1649416 https://www.osti.gov/biblio/1649416 https://doi.org/10.3389/fmicb.2020.01625 doi:10.3389/fmicb.2020.01625 59 BASIC BIOLOGICAL SCIENCES 2023 ftosti https://doi.org/10.3389/fmicb.2020.01625 2023-07-11T09:45:20Z 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. Other/Unknown Material Iceland SciTec Connect (Office of Scientific and Technical Information - OSTI, U.S. Department of Energy) Frontiers in Microbiology 11 |
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SciTec Connect (Office of Scientific and Technical Information - OSTI, U.S. Department of Energy) |
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59 BASIC BIOLOGICAL SCIENCES |
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59 BASIC BIOLOGICAL SCIENCES Podar, Peter T. Yang, Zamin Koo Björnsdóttir, Snædís H. Podar, Mircea Comparative Analysis of Microbial Diversity Across Temperature Gradients in Hot Springs From Yellowstone and Iceland |
topic_facet |
59 BASIC BIOLOGICAL SCIENCES |
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. |
author |
Podar, Peter T. Yang, Zamin Koo Björnsdóttir, Snædís H. Podar, Mircea |
author_facet |
Podar, Peter T. Yang, Zamin Koo Björnsdóttir, Snædís H. Podar, Mircea |
author_sort |
Podar, Peter T. |
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 |
publishDate |
2023 |
url |
http://www.osti.gov/servlets/purl/1649416 https://www.osti.gov/biblio/1649416 https://doi.org/10.3389/fmicb.2020.01625 |
genre |
Iceland |
genre_facet |
Iceland |
op_relation |
http://www.osti.gov/servlets/purl/1649416 https://www.osti.gov/biblio/1649416 https://doi.org/10.3389/fmicb.2020.01625 doi:10.3389/fmicb.2020.01625 |
op_doi |
https://doi.org/10.3389/fmicb.2020.01625 |
container_title |
Frontiers in Microbiology |
container_volume |
11 |
_version_ |
1772815684955275264 |