Understanding Permafrost Dynamics Using Metagenomics and Systems Biology
Permafrost underlies 25% of earth's land surface. As temperatures warm, particularly in Alaska and across the Arctic, permafrost will thaw, dramatically altering landscapes and ecosystems. As permafrost thaws, soil microbes activate and through their metabolic processes, release carbon back int...
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ftpubmed:oai:pubmedcentral.nih.gov:6938125 2023-05-15T15:02:41+02:00 Understanding Permafrost Dynamics Using Metagenomics and Systems Biology Barbato, Robyn A. 2019-12 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6938125/ en eng Association of Biomolecular Resource Facilities http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6938125/ © Association of Biomolecular Resource Facilities Scientific Session Abstracts Text 2019 ftpubmed 2020-01-05T01:50:12Z Permafrost underlies 25% of earth's land surface. As temperatures warm, particularly in Alaska and across the Arctic, permafrost will thaw, dramatically altering landscapes and ecosystems. As permafrost thaws, soil microbes activate and through their metabolic processes, release carbon back into the atmosphere. In the laboratory, we subjected Alaskan permafrost samples to warming temperatures to mimic thaw. DNA was extracted from samples across the thaw regime and sequenced on an Illumina HiSeq. Shotgun sequencing revealed that the composition of microbes from the frozen state were different from those in the thawed state. Furthermore, the temperature, rather than the starting inoculum, influenced the thawed community composition. This has important implications for predictions of biochemical processes under warming conditions because different sets of permafrost will likely respond differently and these trajectories should be accounted for in the current models. Text Arctic permafrost Alaska PubMed Central (PMC) Arctic |
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Scientific Session Abstracts |
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Scientific Session Abstracts Barbato, Robyn A. Understanding Permafrost Dynamics Using Metagenomics and Systems Biology |
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Scientific Session Abstracts |
description |
Permafrost underlies 25% of earth's land surface. As temperatures warm, particularly in Alaska and across the Arctic, permafrost will thaw, dramatically altering landscapes and ecosystems. As permafrost thaws, soil microbes activate and through their metabolic processes, release carbon back into the atmosphere. In the laboratory, we subjected Alaskan permafrost samples to warming temperatures to mimic thaw. DNA was extracted from samples across the thaw regime and sequenced on an Illumina HiSeq. Shotgun sequencing revealed that the composition of microbes from the frozen state were different from those in the thawed state. Furthermore, the temperature, rather than the starting inoculum, influenced the thawed community composition. This has important implications for predictions of biochemical processes under warming conditions because different sets of permafrost will likely respond differently and these trajectories should be accounted for in the current models. |
format |
Text |
author |
Barbato, Robyn A. |
author_facet |
Barbato, Robyn A. |
author_sort |
Barbato, Robyn A. |
title |
Understanding Permafrost Dynamics Using Metagenomics and Systems Biology |
title_short |
Understanding Permafrost Dynamics Using Metagenomics and Systems Biology |
title_full |
Understanding Permafrost Dynamics Using Metagenomics and Systems Biology |
title_fullStr |
Understanding Permafrost Dynamics Using Metagenomics and Systems Biology |
title_full_unstemmed |
Understanding Permafrost Dynamics Using Metagenomics and Systems Biology |
title_sort |
understanding permafrost dynamics using metagenomics and systems biology |
publisher |
Association of Biomolecular Resource Facilities |
publishDate |
2019 |
url |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6938125/ |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic permafrost Alaska |
genre_facet |
Arctic permafrost Alaska |
op_relation |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6938125/ |
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© Association of Biomolecular Resource Facilities |
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