Microbes in High Arctic Snow and Implications for the Cold Biosphere ▿ †
We applied molecular, microscopic, and culture techniques to characterize the microbial communities in snow and air at remote sites in the Canadian High Arctic (Ward Hunt Island, Ellesmere Island, and Cornwallis Island, latitudes 74 to 83oN). Members of the Bacteria and Eukarya were prevalent in the...
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Online Access: | http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3126466 http://www.ncbi.nlm.nih.gov/pubmed/21460114 https://doi.org/10.1128/AEM.02611-10 |
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ftpubmed:oai:pubmedcentral.nih.gov:3126466 2023-05-15T13:32:03+02:00 Microbes in High Arctic Snow and Implications for the Cold Biosphere ▿ † Harding, Tommy Jungblut, Anne D. Lovejoy, Connie Vincent, Warwick F. 2011-05 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3126466 http://www.ncbi.nlm.nih.gov/pubmed/21460114 https://doi.org/10.1128/AEM.02611-10 en eng American Society for Microbiology http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3126466 http://www.ncbi.nlm.nih.gov/pubmed/21460114 http://dx.doi.org/10.1128/AEM.02611-10 Copyright © 2011, American Society for Microbiology Environmental Microbiology Text 2011 ftpubmed https://doi.org/10.1128/AEM.02611-10 2013-09-03T16:43:25Z We applied molecular, microscopic, and culture techniques to characterize the microbial communities in snow and air at remote sites in the Canadian High Arctic (Ward Hunt Island, Ellesmere Island, and Cornwallis Island, latitudes 74 to 83oN). Members of the Bacteria and Eukarya were prevalent in the snow, and their small subunit (SSU) rRNA gene signatures indicated strong local aerial transport within the region over the preceding 8 months of winter snowpack accumulation. Many of the operational taxonomic units (OTUs) were similar to previously reported SSU rRNA gene sequences from the Arctic Ocean, suggesting the importance of local aerial transport processes for marine microbiota. More than 47% of the cyanobacterial OTUs in the snow have been previously found in microbial mats in the region, indicating that this group was also substantially derived from local sources. Viable cyanobacteria isolated from the snow indicated free exchange between the snow and adjacent mat communities. Other sequences were most similar to those found outside the Canadian Arctic but were from snow, lake and sea ice, glaciers and permafrost, alpine regions, Antarctica, and other regions of the Arctic, supporting the concept of global distribution of microbial ecotypes throughout the cold biosphere. Text Antarc* Antarctica Arctic Arctic Ocean Cornwallis Island Ellesmere Island Ice permafrost Sea ice Ward Hunt Island PubMed Central (PMC) Arctic Arctic Ocean Ellesmere Island Cornwallis ENVELOPE(-54.464,-54.464,-61.072,-61.072) Ward Hunt Island ENVELOPE(-74.161,-74.161,83.102,83.102) Cornwallis Island ENVELOPE(-95.001,-95.001,75.135,75.135) Hunt Island ENVELOPE(-100.601,-100.601,58.788,58.788) Applied and Environmental Microbiology 77 10 3234 3243 |
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English |
topic |
Environmental Microbiology |
spellingShingle |
Environmental Microbiology Harding, Tommy Jungblut, Anne D. Lovejoy, Connie Vincent, Warwick F. Microbes in High Arctic Snow and Implications for the Cold Biosphere ▿ † |
topic_facet |
Environmental Microbiology |
description |
We applied molecular, microscopic, and culture techniques to characterize the microbial communities in snow and air at remote sites in the Canadian High Arctic (Ward Hunt Island, Ellesmere Island, and Cornwallis Island, latitudes 74 to 83oN). Members of the Bacteria and Eukarya were prevalent in the snow, and their small subunit (SSU) rRNA gene signatures indicated strong local aerial transport within the region over the preceding 8 months of winter snowpack accumulation. Many of the operational taxonomic units (OTUs) were similar to previously reported SSU rRNA gene sequences from the Arctic Ocean, suggesting the importance of local aerial transport processes for marine microbiota. More than 47% of the cyanobacterial OTUs in the snow have been previously found in microbial mats in the region, indicating that this group was also substantially derived from local sources. Viable cyanobacteria isolated from the snow indicated free exchange between the snow and adjacent mat communities. Other sequences were most similar to those found outside the Canadian Arctic but were from snow, lake and sea ice, glaciers and permafrost, alpine regions, Antarctica, and other regions of the Arctic, supporting the concept of global distribution of microbial ecotypes throughout the cold biosphere. |
format |
Text |
author |
Harding, Tommy Jungblut, Anne D. Lovejoy, Connie Vincent, Warwick F. |
author_facet |
Harding, Tommy Jungblut, Anne D. Lovejoy, Connie Vincent, Warwick F. |
author_sort |
Harding, Tommy |
title |
Microbes in High Arctic Snow and Implications for the Cold Biosphere ▿ † |
title_short |
Microbes in High Arctic Snow and Implications for the Cold Biosphere ▿ † |
title_full |
Microbes in High Arctic Snow and Implications for the Cold Biosphere ▿ † |
title_fullStr |
Microbes in High Arctic Snow and Implications for the Cold Biosphere ▿ † |
title_full_unstemmed |
Microbes in High Arctic Snow and Implications for the Cold Biosphere ▿ † |
title_sort |
microbes in high arctic snow and implications for the cold biosphere ▿ † |
publisher |
American Society for Microbiology |
publishDate |
2011 |
url |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3126466 http://www.ncbi.nlm.nih.gov/pubmed/21460114 https://doi.org/10.1128/AEM.02611-10 |
long_lat |
ENVELOPE(-54.464,-54.464,-61.072,-61.072) ENVELOPE(-74.161,-74.161,83.102,83.102) ENVELOPE(-95.001,-95.001,75.135,75.135) ENVELOPE(-100.601,-100.601,58.788,58.788) |
geographic |
Arctic Arctic Ocean Ellesmere Island Cornwallis Ward Hunt Island Cornwallis Island Hunt Island |
geographic_facet |
Arctic Arctic Ocean Ellesmere Island Cornwallis Ward Hunt Island Cornwallis Island Hunt Island |
genre |
Antarc* Antarctica Arctic Arctic Ocean Cornwallis Island Ellesmere Island Ice permafrost Sea ice Ward Hunt Island |
genre_facet |
Antarc* Antarctica Arctic Arctic Ocean Cornwallis Island Ellesmere Island Ice permafrost Sea ice Ward Hunt Island |
op_relation |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3126466 http://www.ncbi.nlm.nih.gov/pubmed/21460114 http://dx.doi.org/10.1128/AEM.02611-10 |
op_rights |
Copyright © 2011, American Society for Microbiology |
op_doi |
https://doi.org/10.1128/AEM.02611-10 |
container_title |
Applied and Environmental Microbiology |
container_volume |
77 |
container_issue |
10 |
container_start_page |
3234 |
op_container_end_page |
3243 |
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1766023868090155008 |