Diversity and Assembling Processes of Bacterial Communities in Cryoconite Holes of a Karakoram Glacier
Cryoconite holes are small ponds that form on the surface of glaciers that contain a dark debris, the cryoconite, at the bottom and host active ecological communities. Differences in the structure of bacterial communities have been documented among Arctic and mountain glaciers, and among glaciers in...
Published in: | Microbial Ecology |
---|---|
Main Authors: | , , , , , , , , , , , |
Other Authors: | , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Springer New York LLC
2017
|
Subjects: | |
Online Access: | http://hdl.handle.net/10281/150559 https://doi.org/10.1007/s00248-016-0914-6 |
id |
ftunivmilanobic:oai:boa.unimib.it:10281/150559 |
---|---|
record_format |
openpolar |
spelling |
ftunivmilanobic:oai:boa.unimib.it:10281/150559 2024-04-14T08:08:08+00:00 Diversity and Assembling Processes of Bacterial Communities in Cryoconite Holes of a Karakoram Glacier AMBROSINI, ROBERTO MUSITELLI, FEDERICA Navarra, F Tagliaferri, I GANDOLFI, ISABELLA BESTETTI, GIUSEPPINA Mayer, C Minora, U Azzoni, R Diolaiuti, G Smiraglia, C FRANZETTI, ANDREA Ambrosini, R Musitelli, F Navarra, F Tagliaferri, I Gandolfi, I Bestetti, G Mayer, C Minora, U Azzoni, R Diolaiuti, G Smiraglia, C Franzetti, A 2017 http://hdl.handle.net/10281/150559 https://doi.org/10.1007/s00248-016-0914-6 eng eng Springer New York LLC country:US info:eu-repo/semantics/altIdentifier/pmid/27999874 info:eu-repo/semantics/altIdentifier/wos/WOS:000401565700007 volume:73 issue:4 firstpage:827 lastpage:837 numberofpages:11 journal:MICROBIAL ECOLOGY http://hdl.handle.net/10281/150559 doi:10.1007/s00248-016-0914-6 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-85008247458 link.springer.de/link/service/journals/00248/index.htm Bacterial communitie Baltoro glacier Cryoconite Cryosphere Dispersal Ecology Evolution Behavior and Systematic Soil Science info:eu-repo/semantics/article 2017 ftunivmilanobic https://doi.org/10.1007/s00248-016-0914-6 2024-03-28T01:14:50Z Cryoconite holes are small ponds that form on the surface of glaciers that contain a dark debris, the cryoconite, at the bottom and host active ecological communities. Differences in the structure of bacterial communities have been documented among Arctic and mountain glaciers, and among glaciers in different areas of the world. In this study, we investigated the structure of bacterial communities of cryoconite holes of Baltoro Glacier, a large (62 km in length and 524 km2 of surface) glacier of the Karakoram, by high-throughput sequencing of the V5-V6 hypervariable regions of the 16S rRNA gene. We found that Betaproteobacteria dominated bacterial communities, with large abundance of genera Polaromonas, probably thanks to its highly versatile metabolism, and Limnohabitans, which may have been favoured by the presence of supraglacial lakes in the area where cryoconite holes were sampled. Variation in bacterial communities among different sampling areas of the glacier could be explained by divergent selective processes driven by variation in environmental conditions, particularly pH, which was the only environmental variable that significantly affected the structure of bacterial communities. This variability may be due to both temporal and spatial patterns of variation in environmental conditions. Article in Journal/Newspaper Arctic Università degli Studi di Milano-Bicocca: BOA (Bicocca Open Archive) Arctic Microbial Ecology 73 4 827 837 |
institution |
Open Polar |
collection |
Università degli Studi di Milano-Bicocca: BOA (Bicocca Open Archive) |
op_collection_id |
ftunivmilanobic |
language |
English |
topic |
Bacterial communitie Baltoro glacier Cryoconite Cryosphere Dispersal Ecology Evolution Behavior and Systematic Soil Science |
spellingShingle |
Bacterial communitie Baltoro glacier Cryoconite Cryosphere Dispersal Ecology Evolution Behavior and Systematic Soil Science AMBROSINI, ROBERTO MUSITELLI, FEDERICA Navarra, F Tagliaferri, I GANDOLFI, ISABELLA BESTETTI, GIUSEPPINA Mayer, C Minora, U Azzoni, R Diolaiuti, G Smiraglia, C FRANZETTI, ANDREA Diversity and Assembling Processes of Bacterial Communities in Cryoconite Holes of a Karakoram Glacier |
topic_facet |
Bacterial communitie Baltoro glacier Cryoconite Cryosphere Dispersal Ecology Evolution Behavior and Systematic Soil Science |
description |
Cryoconite holes are small ponds that form on the surface of glaciers that contain a dark debris, the cryoconite, at the bottom and host active ecological communities. Differences in the structure of bacterial communities have been documented among Arctic and mountain glaciers, and among glaciers in different areas of the world. In this study, we investigated the structure of bacterial communities of cryoconite holes of Baltoro Glacier, a large (62 km in length and 524 km2 of surface) glacier of the Karakoram, by high-throughput sequencing of the V5-V6 hypervariable regions of the 16S rRNA gene. We found that Betaproteobacteria dominated bacterial communities, with large abundance of genera Polaromonas, probably thanks to its highly versatile metabolism, and Limnohabitans, which may have been favoured by the presence of supraglacial lakes in the area where cryoconite holes were sampled. Variation in bacterial communities among different sampling areas of the glacier could be explained by divergent selective processes driven by variation in environmental conditions, particularly pH, which was the only environmental variable that significantly affected the structure of bacterial communities. This variability may be due to both temporal and spatial patterns of variation in environmental conditions. |
author2 |
Ambrosini, R Musitelli, F Navarra, F Tagliaferri, I Gandolfi, I Bestetti, G Mayer, C Minora, U Azzoni, R Diolaiuti, G Smiraglia, C Franzetti, A |
format |
Article in Journal/Newspaper |
author |
AMBROSINI, ROBERTO MUSITELLI, FEDERICA Navarra, F Tagliaferri, I GANDOLFI, ISABELLA BESTETTI, GIUSEPPINA Mayer, C Minora, U Azzoni, R Diolaiuti, G Smiraglia, C FRANZETTI, ANDREA |
author_facet |
AMBROSINI, ROBERTO MUSITELLI, FEDERICA Navarra, F Tagliaferri, I GANDOLFI, ISABELLA BESTETTI, GIUSEPPINA Mayer, C Minora, U Azzoni, R Diolaiuti, G Smiraglia, C FRANZETTI, ANDREA |
author_sort |
AMBROSINI, ROBERTO |
title |
Diversity and Assembling Processes of Bacterial Communities in Cryoconite Holes of a Karakoram Glacier |
title_short |
Diversity and Assembling Processes of Bacterial Communities in Cryoconite Holes of a Karakoram Glacier |
title_full |
Diversity and Assembling Processes of Bacterial Communities in Cryoconite Holes of a Karakoram Glacier |
title_fullStr |
Diversity and Assembling Processes of Bacterial Communities in Cryoconite Holes of a Karakoram Glacier |
title_full_unstemmed |
Diversity and Assembling Processes of Bacterial Communities in Cryoconite Holes of a Karakoram Glacier |
title_sort |
diversity and assembling processes of bacterial communities in cryoconite holes of a karakoram glacier |
publisher |
Springer New York LLC |
publishDate |
2017 |
url |
http://hdl.handle.net/10281/150559 https://doi.org/10.1007/s00248-016-0914-6 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic |
genre_facet |
Arctic |
op_relation |
info:eu-repo/semantics/altIdentifier/pmid/27999874 info:eu-repo/semantics/altIdentifier/wos/WOS:000401565700007 volume:73 issue:4 firstpage:827 lastpage:837 numberofpages:11 journal:MICROBIAL ECOLOGY http://hdl.handle.net/10281/150559 doi:10.1007/s00248-016-0914-6 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-85008247458 link.springer.de/link/service/journals/00248/index.htm |
op_doi |
https://doi.org/10.1007/s00248-016-0914-6 |
container_title |
Microbial Ecology |
container_volume |
73 |
container_issue |
4 |
container_start_page |
827 |
op_container_end_page |
837 |
_version_ |
1796305565313400832 |