Microbial Community Structures of Novel Icelandic Hot Spring Systems Revealed by PhyloChip G3 Analysis
Microbial community profiles of recently formed hot spring systems ranging in temperatures from 57°C to 100°C and pH values from 2 to 4 in Hveragerði (Iceland) were analyzed with PhyloChip G3 technology. In total, 1173 bacterial operational taxonomic units (OTUs) spanning 576 subfamilies and 38 a...
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Mary Ann Liebert
2014
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ftcaltechauth:oai:authors.library.caltech.edu:gx574-1ad12 2024-06-23T07:53:57+00:00 Microbial Community Structures of Novel Icelandic Hot Spring Systems Revealed by PhyloChip G3 Analysis Krebs, Jorden E. Vaishampayan, Parag Probst, Alexander J. Tom, Lauren M. Marteinsson, Viggó Thór Andersen, Gary L. Venkateswaran, Kasthuri 2014-03-03 https://doi.org/10.1089/ast.2013.1008 unknown Mary Ann Liebert https://doi.org/10.1089/ast.2013.1008 oai:authors.library.caltech.edu:gx574-1ad12 eprintid:44214 resolverid:CaltechAUTHORS:20140310-095530421 info:eu-repo/semantics/openAccess Other Astrobiology, 14(3), (2014-03-03) info:eu-repo/semantics/article 2014 ftcaltechauth https://doi.org/10.1089/ast.2013.1008 2024-06-12T04:12:11Z Microbial community profiles of recently formed hot spring systems ranging in temperatures from 57°C to 100°C and pH values from 2 to 4 in Hveragerði (Iceland) were analyzed with PhyloChip G3 technology. In total, 1173 bacterial operational taxonomic units (OTUs) spanning 576 subfamilies and 38 archaeal OTUs covering 32 subfamilies were observed. As expected, the hyperthermophilic (100°C) spring system exhibited both low microbial biomass and diversity when compared to thermophilic (60°C) springs. Ordination analysis revealed distinct bacterial and archaeal diversity in geographically distinct hot springs. Slight variations in temperature (from 57°C to 64°C) within the interconnected pools led to a marked fluctuation in microbial abundance and diversity. Correlation and PERMANOVA tests provided evidence that temperature was the key environmental factor responsible for microbial community dynamics, while pH, H_(2)S, and SO_2 influenced the abundance of specific microbial groups. When archaeal community composition was analyzed, the majority of detected OTUs correlated negatively with temperature, and few correlated positively with pH. Key Words: Microbial diversity—PhyloChip G3—Acidophilic—Thermophilic—Hot springs—Iceland. Astrobiology 14, xxx–xxx. © 2014 Mary Ann Liebert, Inc. Online Ahead of Print: March 3, 2014. Part of the research described in this study was carried out at the Jet Propulsion Laboratory, California Institute of Technology, under contract with the National Aeronautics and Space Administration. A. Probst's contribution was supported by the German National Academic Foundation (Studienstiftung des deutschen Volkes). J. Krebs's participation was funded by a Caltech Amgen Scholars Fellowship awarded in 2011. The authors are grateful to the Coordination Action for Research Activities on life in Extreme Environments (CAREX) project funded by the European Commission. A special thanks to N. Walter, European Science Federation, for supporting P. Vaishampayan's travel to Iceland. We ... Article in Journal/Newspaper Iceland Caltech Authors (California Institute of Technology) Astrobiology 14 3 229 240 |
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Caltech Authors (California Institute of Technology) |
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Microbial community profiles of recently formed hot spring systems ranging in temperatures from 57°C to 100°C and pH values from 2 to 4 in Hveragerði (Iceland) were analyzed with PhyloChip G3 technology. In total, 1173 bacterial operational taxonomic units (OTUs) spanning 576 subfamilies and 38 archaeal OTUs covering 32 subfamilies were observed. As expected, the hyperthermophilic (100°C) spring system exhibited both low microbial biomass and diversity when compared to thermophilic (60°C) springs. Ordination analysis revealed distinct bacterial and archaeal diversity in geographically distinct hot springs. Slight variations in temperature (from 57°C to 64°C) within the interconnected pools led to a marked fluctuation in microbial abundance and diversity. Correlation and PERMANOVA tests provided evidence that temperature was the key environmental factor responsible for microbial community dynamics, while pH, H_(2)S, and SO_2 influenced the abundance of specific microbial groups. When archaeal community composition was analyzed, the majority of detected OTUs correlated negatively with temperature, and few correlated positively with pH. Key Words: Microbial diversity—PhyloChip G3—Acidophilic—Thermophilic—Hot springs—Iceland. Astrobiology 14, xxx–xxx. © 2014 Mary Ann Liebert, Inc. Online Ahead of Print: March 3, 2014. Part of the research described in this study was carried out at the Jet Propulsion Laboratory, California Institute of Technology, under contract with the National Aeronautics and Space Administration. A. Probst's contribution was supported by the German National Academic Foundation (Studienstiftung des deutschen Volkes). J. Krebs's participation was funded by a Caltech Amgen Scholars Fellowship awarded in 2011. The authors are grateful to the Coordination Action for Research Activities on life in Extreme Environments (CAREX) project funded by the European Commission. A special thanks to N. Walter, European Science Federation, for supporting P. Vaishampayan's travel to Iceland. We ... |
format |
Article in Journal/Newspaper |
author |
Krebs, Jorden E. Vaishampayan, Parag Probst, Alexander J. Tom, Lauren M. Marteinsson, Viggó Thór Andersen, Gary L. Venkateswaran, Kasthuri |
spellingShingle |
Krebs, Jorden E. Vaishampayan, Parag Probst, Alexander J. Tom, Lauren M. Marteinsson, Viggó Thór Andersen, Gary L. Venkateswaran, Kasthuri Microbial Community Structures of Novel Icelandic Hot Spring Systems Revealed by PhyloChip G3 Analysis |
author_facet |
Krebs, Jorden E. Vaishampayan, Parag Probst, Alexander J. Tom, Lauren M. Marteinsson, Viggó Thór Andersen, Gary L. Venkateswaran, Kasthuri |
author_sort |
Krebs, Jorden E. |
title |
Microbial Community Structures of Novel Icelandic Hot Spring Systems Revealed by PhyloChip G3 Analysis |
title_short |
Microbial Community Structures of Novel Icelandic Hot Spring Systems Revealed by PhyloChip G3 Analysis |
title_full |
Microbial Community Structures of Novel Icelandic Hot Spring Systems Revealed by PhyloChip G3 Analysis |
title_fullStr |
Microbial Community Structures of Novel Icelandic Hot Spring Systems Revealed by PhyloChip G3 Analysis |
title_full_unstemmed |
Microbial Community Structures of Novel Icelandic Hot Spring Systems Revealed by PhyloChip G3 Analysis |
title_sort |
microbial community structures of novel icelandic hot spring systems revealed by phylochip g3 analysis |
publisher |
Mary Ann Liebert |
publishDate |
2014 |
url |
https://doi.org/10.1089/ast.2013.1008 |
genre |
Iceland |
genre_facet |
Iceland |
op_source |
Astrobiology, 14(3), (2014-03-03) |
op_relation |
https://doi.org/10.1089/ast.2013.1008 oai:authors.library.caltech.edu:gx574-1ad12 eprintid:44214 resolverid:CaltechAUTHORS:20140310-095530421 |
op_rights |
info:eu-repo/semantics/openAccess Other |
op_doi |
https://doi.org/10.1089/ast.2013.1008 |
container_title |
Astrobiology |
container_volume |
14 |
container_issue |
3 |
container_start_page |
229 |
op_container_end_page |
240 |
_version_ |
1802645864583266304 |