The dynamic bacterial communities of a melting High Arctic glacier snowpack
Snow environments can occupy over a third of land surface area, but little is known about the dynamics of snowpack bacteria. The effect of snow melt on bacterial community structure and diversity of surface environments of a Svalbard glacier was examined using analyses of 16S rRNA genes via T-RFLP,...
Published in: | The ISME Journal |
---|---|
Main Authors: | , , , , , , , |
Format: | Text |
Language: | English |
Published: |
Nature Publishing Group
2013
|
Subjects: | |
Online Access: | http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3749494 http://www.ncbi.nlm.nih.gov/pubmed/23552623 https://doi.org/10.1038/ismej.2013.51 |
id |
ftpubmed:oai:pubmedcentral.nih.gov:3749494 |
---|---|
record_format |
openpolar |
spelling |
ftpubmed:oai:pubmedcentral.nih.gov:3749494 2023-05-15T15:07:06+02:00 The dynamic bacterial communities of a melting High Arctic glacier snowpack Hell, Katherina Edwards, Arwyn Zarsky, Jakub Podmirseg, Sabine M Girdwood, Susan Pachebat, Justin A Insam, Heribert Sattler, Birgit 2013-09 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3749494 http://www.ncbi.nlm.nih.gov/pubmed/23552623 https://doi.org/10.1038/ismej.2013.51 en eng Nature Publishing Group http://www.ncbi.nlm.nih.gov/pmc/articles/PMC http://www.ncbi.nlm.nih.gov/pubmed/23552623 http://dx.doi.org/10.1038/ismej.2013.51 Copyright © 2013 International Society for Microbial Ecology Original Article Text 2013 ftpubmed https://doi.org/10.1038/ismej.2013.51 2014-09-07T00:49:35Z Snow environments can occupy over a third of land surface area, but little is known about the dynamics of snowpack bacteria. The effect of snow melt on bacterial community structure and diversity of surface environments of a Svalbard glacier was examined using analyses of 16S rRNA genes via T-RFLP, qPCR and 454 pyrosequencing. Distinct community structures were found in different habitat types, with changes over 1 week apparent, in particular for the dominant bacterial class present, Betaproteobacteria. The differences observed were consistent with influences from depositional mode (snowfall vs aeolian dusts), contrasting snow with dust-rich snow layers and near-surface ice. Contrary to that, slush as the decompositional product of snow harboured distinct lineages of bacteria, further implying post-depositional changes in community structure. Taxa affiliated to the betaproteobacterial genus Polaromonas were particularly dynamic, and evidence for the presence of betaproteobacterial ammonia-oxidizing bacteria was uncovered, inviting the prospect that the dynamic bacterial communities associated with snowpacks may be active in supraglacial nitrogen cycling and capable of rapid responses to changes induced by snowmelt. Furthermore the potential of supraglacial snowpack ecosystems to respond to transient yet spatially extensive melting episodes such as that observed across most of Greenland's ice sheet in 2012 merits further investigation. Text Arctic glacier Ice Sheet Svalbard PubMed Central (PMC) Arctic Svalbard The ISME Journal 7 9 1814 1826 |
institution |
Open Polar |
collection |
PubMed Central (PMC) |
op_collection_id |
ftpubmed |
language |
English |
topic |
Original Article |
spellingShingle |
Original Article Hell, Katherina Edwards, Arwyn Zarsky, Jakub Podmirseg, Sabine M Girdwood, Susan Pachebat, Justin A Insam, Heribert Sattler, Birgit The dynamic bacterial communities of a melting High Arctic glacier snowpack |
topic_facet |
Original Article |
description |
Snow environments can occupy over a third of land surface area, but little is known about the dynamics of snowpack bacteria. The effect of snow melt on bacterial community structure and diversity of surface environments of a Svalbard glacier was examined using analyses of 16S rRNA genes via T-RFLP, qPCR and 454 pyrosequencing. Distinct community structures were found in different habitat types, with changes over 1 week apparent, in particular for the dominant bacterial class present, Betaproteobacteria. The differences observed were consistent with influences from depositional mode (snowfall vs aeolian dusts), contrasting snow with dust-rich snow layers and near-surface ice. Contrary to that, slush as the decompositional product of snow harboured distinct lineages of bacteria, further implying post-depositional changes in community structure. Taxa affiliated to the betaproteobacterial genus Polaromonas were particularly dynamic, and evidence for the presence of betaproteobacterial ammonia-oxidizing bacteria was uncovered, inviting the prospect that the dynamic bacterial communities associated with snowpacks may be active in supraglacial nitrogen cycling and capable of rapid responses to changes induced by snowmelt. Furthermore the potential of supraglacial snowpack ecosystems to respond to transient yet spatially extensive melting episodes such as that observed across most of Greenland's ice sheet in 2012 merits further investigation. |
format |
Text |
author |
Hell, Katherina Edwards, Arwyn Zarsky, Jakub Podmirseg, Sabine M Girdwood, Susan Pachebat, Justin A Insam, Heribert Sattler, Birgit |
author_facet |
Hell, Katherina Edwards, Arwyn Zarsky, Jakub Podmirseg, Sabine M Girdwood, Susan Pachebat, Justin A Insam, Heribert Sattler, Birgit |
author_sort |
Hell, Katherina |
title |
The dynamic bacterial communities of a melting High Arctic glacier snowpack |
title_short |
The dynamic bacterial communities of a melting High Arctic glacier snowpack |
title_full |
The dynamic bacterial communities of a melting High Arctic glacier snowpack |
title_fullStr |
The dynamic bacterial communities of a melting High Arctic glacier snowpack |
title_full_unstemmed |
The dynamic bacterial communities of a melting High Arctic glacier snowpack |
title_sort |
dynamic bacterial communities of a melting high arctic glacier snowpack |
publisher |
Nature Publishing Group |
publishDate |
2013 |
url |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3749494 http://www.ncbi.nlm.nih.gov/pubmed/23552623 https://doi.org/10.1038/ismej.2013.51 |
geographic |
Arctic Svalbard |
geographic_facet |
Arctic Svalbard |
genre |
Arctic glacier Ice Sheet Svalbard |
genre_facet |
Arctic glacier Ice Sheet Svalbard |
op_relation |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC http://www.ncbi.nlm.nih.gov/pubmed/23552623 http://dx.doi.org/10.1038/ismej.2013.51 |
op_rights |
Copyright © 2013 International Society for Microbial Ecology |
op_doi |
https://doi.org/10.1038/ismej.2013.51 |
container_title |
The ISME Journal |
container_volume |
7 |
container_issue |
9 |
container_start_page |
1814 |
op_container_end_page |
1826 |
_version_ |
1766338661207506944 |