Changes of the Bacterial Abundance and Communities in Shallow Ice Cores from Dunde and Muztagata Glaciers, Western China
In this study, six bacterial community structures were analyzed from the Dunde ice core (9.5-m-long) using 16S rRNA gene cloning library technology. Compared to the Muztagata mountain ice core (37-m-long), the Dunde ice core has different dominant community structures, with five genus-related groups...
Published in: | Frontiers in Microbiology |
---|---|
Main Authors: | , , , , , |
Format: | Text |
Language: | English |
Published: |
Frontiers Media S.A.
2016
|
Subjects: | |
Online Access: | http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5088206/ http://www.ncbi.nlm.nih.gov/pubmed/27847503 https://doi.org/10.3389/fmicb.2016.01716 |
id |
ftpubmed:oai:pubmedcentral.nih.gov:5088206 |
---|---|
record_format |
openpolar |
spelling |
ftpubmed:oai:pubmedcentral.nih.gov:5088206 2023-05-15T16:38:39+02:00 Changes of the Bacterial Abundance and Communities in Shallow Ice Cores from Dunde and Muztagata Glaciers, Western China Chen, Yong Li, Xiang-Kai Si, Jing Wu, Guang-Jian Tian, Li-De Xiang, Shu-Rong 2016-11-01 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5088206/ http://www.ncbi.nlm.nih.gov/pubmed/27847503 https://doi.org/10.3389/fmicb.2016.01716 en eng Frontiers Media S.A. http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5088206/ http://www.ncbi.nlm.nih.gov/pubmed/27847503 http://dx.doi.org/10.3389/fmicb.2016.01716 Copyright © 2016 Chen, Li, Si, Wu, Tian and Xiang. http://creativecommons.org/licenses/by/4.0/ This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms. CC-BY Microbiology Text 2016 ftpubmed https://doi.org/10.3389/fmicb.2016.01716 2016-11-20T01:06:31Z In this study, six bacterial community structures were analyzed from the Dunde ice core (9.5-m-long) using 16S rRNA gene cloning library technology. Compared to the Muztagata mountain ice core (37-m-long), the Dunde ice core has different dominant community structures, with five genus-related groups Blastococcus sp./Propionibacterium, Cryobacterium-related., Flavobacterium sp., Pedobacter sp., and Polaromas sp. that are frequently found in the six tested ice layers from 1990 to 2000. Live and total microbial density patterns were examined and related to the dynamics of physical-chemical parameters, mineral particle concentrations, and stable isotopic ratios in the precipitations collected from both Muztagata and Dunde ice cores. The Muztagata ice core revealed seasonal response patterns for both live and total cell density, with high cell density occurring in the warming spring and summer months indicated by the proxy value of the stable isotopic ratios. Seasonal analysis of live cell density for the Dunde ice core was not successful due to the limitations of sampling resolution. Both ice cores showed that the cell density peaks were frequently associated with high concentrations of particles. A comparison of microbial communities in the Dunde and Muztagata glaciers showed that similar taxonomic members exist in the related ice cores, but the composition of the prevalent genus-related groups is largely different between the two geographically different glaciers. This indicates that the micro-biogeography associated with geographic differences was mainly influenced by a few dominant taxonomic groups. Text ice core PubMed Central (PMC) Frontiers in Microbiology 7 |
institution |
Open Polar |
collection |
PubMed Central (PMC) |
op_collection_id |
ftpubmed |
language |
English |
topic |
Microbiology |
spellingShingle |
Microbiology Chen, Yong Li, Xiang-Kai Si, Jing Wu, Guang-Jian Tian, Li-De Xiang, Shu-Rong Changes of the Bacterial Abundance and Communities in Shallow Ice Cores from Dunde and Muztagata Glaciers, Western China |
topic_facet |
Microbiology |
description |
In this study, six bacterial community structures were analyzed from the Dunde ice core (9.5-m-long) using 16S rRNA gene cloning library technology. Compared to the Muztagata mountain ice core (37-m-long), the Dunde ice core has different dominant community structures, with five genus-related groups Blastococcus sp./Propionibacterium, Cryobacterium-related., Flavobacterium sp., Pedobacter sp., and Polaromas sp. that are frequently found in the six tested ice layers from 1990 to 2000. Live and total microbial density patterns were examined and related to the dynamics of physical-chemical parameters, mineral particle concentrations, and stable isotopic ratios in the precipitations collected from both Muztagata and Dunde ice cores. The Muztagata ice core revealed seasonal response patterns for both live and total cell density, with high cell density occurring in the warming spring and summer months indicated by the proxy value of the stable isotopic ratios. Seasonal analysis of live cell density for the Dunde ice core was not successful due to the limitations of sampling resolution. Both ice cores showed that the cell density peaks were frequently associated with high concentrations of particles. A comparison of microbial communities in the Dunde and Muztagata glaciers showed that similar taxonomic members exist in the related ice cores, but the composition of the prevalent genus-related groups is largely different between the two geographically different glaciers. This indicates that the micro-biogeography associated with geographic differences was mainly influenced by a few dominant taxonomic groups. |
format |
Text |
author |
Chen, Yong Li, Xiang-Kai Si, Jing Wu, Guang-Jian Tian, Li-De Xiang, Shu-Rong |
author_facet |
Chen, Yong Li, Xiang-Kai Si, Jing Wu, Guang-Jian Tian, Li-De Xiang, Shu-Rong |
author_sort |
Chen, Yong |
title |
Changes of the Bacterial Abundance and Communities in Shallow Ice Cores from Dunde and Muztagata Glaciers, Western China |
title_short |
Changes of the Bacterial Abundance and Communities in Shallow Ice Cores from Dunde and Muztagata Glaciers, Western China |
title_full |
Changes of the Bacterial Abundance and Communities in Shallow Ice Cores from Dunde and Muztagata Glaciers, Western China |
title_fullStr |
Changes of the Bacterial Abundance and Communities in Shallow Ice Cores from Dunde and Muztagata Glaciers, Western China |
title_full_unstemmed |
Changes of the Bacterial Abundance and Communities in Shallow Ice Cores from Dunde and Muztagata Glaciers, Western China |
title_sort |
changes of the bacterial abundance and communities in shallow ice cores from dunde and muztagata glaciers, western china |
publisher |
Frontiers Media S.A. |
publishDate |
2016 |
url |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5088206/ http://www.ncbi.nlm.nih.gov/pubmed/27847503 https://doi.org/10.3389/fmicb.2016.01716 |
genre |
ice core |
genre_facet |
ice core |
op_relation |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5088206/ http://www.ncbi.nlm.nih.gov/pubmed/27847503 http://dx.doi.org/10.3389/fmicb.2016.01716 |
op_rights |
Copyright © 2016 Chen, Li, Si, Wu, Tian and Xiang. http://creativecommons.org/licenses/by/4.0/ This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms. |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.3389/fmicb.2016.01716 |
container_title |
Frontiers in Microbiology |
container_volume |
7 |
_version_ |
1766028970064609280 |