Biogeography of bacterial communities exposed to progressive long-term environmental change
The response of microbial communities to long-term environmental change is poorly understood. Here, we study bacterioplankton communities in a unique system of coastal Antarctic lakes that were exposed to progressive long-term environmental change, using 454 pyrosequencing of the 16S rDNA gene (V3-V...
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ftulundlup:oai:lup.lub.lu.se:cb94c7a0-0530-48f2-bec3-0699551146dd 2023-05-15T13:50:27+02:00 Biogeography of bacterial communities exposed to progressive long-term environmental change Logares, Ramiro Lindstrom, Eva S. Langenheder, Silke Logue, Jürg Brendan Paterson, Harriet Laybourn-Parry, Johanna Rengefors, Karin Tranvik, Lars Bertilsson, Stefan 2013 https://lup.lub.lu.se/record/3853633 https://doi.org/10.1038/ismej.2012.168 eng eng Nature Publishing Group https://lup.lub.lu.se/record/3853633 http://dx.doi.org/10.1038/ismej.2012.168 wos:000317963300005 scopus:84876822224 pmid:23254515 The Isme Journal; 7(5), pp 937-948 (2013) ISSN: 1751-7362 Ecology Antarctica Bacteria environmental change long-term pyrosequencing salinity contributiontojournal/article info:eu-repo/semantics/article text 2013 ftulundlup https://doi.org/10.1038/ismej.2012.168 2023-02-01T23:29:05Z The response of microbial communities to long-term environmental change is poorly understood. Here, we study bacterioplankton communities in a unique system of coastal Antarctic lakes that were exposed to progressive long-term environmental change, using 454 pyrosequencing of the 16S rDNA gene (V3-V4 regions). At the time of formation, most of the studied lakes harbored marine-coastal microbial communities, as they were connected to the sea. During the past 20 000 years, most lakes isolated from the sea, and subsequently they experienced a gradual, but strong, salinity change that eventually developed into a gradient ranging from freshwater (salinity 0) to hypersaline (salinity 100). Our results indicated that present bacterioplankton community composition was strongly correlated with salinity and weakly correlated with geographical distance between lakes. A few abundant taxa were shared between some lakes and coastal marine communities. Nevertheless, lakes contained a large number of taxa that were not detected in the adjacent sea. Abundant and rare taxa within saline communities presented similar biogeography, suggesting that these groups have comparable environmental sensitivity. Habitat specialists and generalists were detected among abundant and rare taxa, with specialists being relatively more abundant at the extremes of the salinity gradient. Altogether, progressive long-term salinity change appears to have promoted the diversification of bacterioplankton communities by modifying the composition of ancestral communities and by allowing the establishment of new taxa. The ISME Journal (2013) 7, 937-948; doi:10.1038/ismej.2012.168; published online 20 December 2012 Article in Journal/Newspaper Antarc* Antarctic Antarctica Lund University Publications (LUP) Antarctic The ISME Journal 7 5 937 948 |
institution |
Open Polar |
collection |
Lund University Publications (LUP) |
op_collection_id |
ftulundlup |
language |
English |
topic |
Ecology Antarctica Bacteria environmental change long-term pyrosequencing salinity |
spellingShingle |
Ecology Antarctica Bacteria environmental change long-term pyrosequencing salinity Logares, Ramiro Lindstrom, Eva S. Langenheder, Silke Logue, Jürg Brendan Paterson, Harriet Laybourn-Parry, Johanna Rengefors, Karin Tranvik, Lars Bertilsson, Stefan Biogeography of bacterial communities exposed to progressive long-term environmental change |
topic_facet |
Ecology Antarctica Bacteria environmental change long-term pyrosequencing salinity |
description |
The response of microbial communities to long-term environmental change is poorly understood. Here, we study bacterioplankton communities in a unique system of coastal Antarctic lakes that were exposed to progressive long-term environmental change, using 454 pyrosequencing of the 16S rDNA gene (V3-V4 regions). At the time of formation, most of the studied lakes harbored marine-coastal microbial communities, as they were connected to the sea. During the past 20 000 years, most lakes isolated from the sea, and subsequently they experienced a gradual, but strong, salinity change that eventually developed into a gradient ranging from freshwater (salinity 0) to hypersaline (salinity 100). Our results indicated that present bacterioplankton community composition was strongly correlated with salinity and weakly correlated with geographical distance between lakes. A few abundant taxa were shared between some lakes and coastal marine communities. Nevertheless, lakes contained a large number of taxa that were not detected in the adjacent sea. Abundant and rare taxa within saline communities presented similar biogeography, suggesting that these groups have comparable environmental sensitivity. Habitat specialists and generalists were detected among abundant and rare taxa, with specialists being relatively more abundant at the extremes of the salinity gradient. Altogether, progressive long-term salinity change appears to have promoted the diversification of bacterioplankton communities by modifying the composition of ancestral communities and by allowing the establishment of new taxa. The ISME Journal (2013) 7, 937-948; doi:10.1038/ismej.2012.168; published online 20 December 2012 |
format |
Article in Journal/Newspaper |
author |
Logares, Ramiro Lindstrom, Eva S. Langenheder, Silke Logue, Jürg Brendan Paterson, Harriet Laybourn-Parry, Johanna Rengefors, Karin Tranvik, Lars Bertilsson, Stefan |
author_facet |
Logares, Ramiro Lindstrom, Eva S. Langenheder, Silke Logue, Jürg Brendan Paterson, Harriet Laybourn-Parry, Johanna Rengefors, Karin Tranvik, Lars Bertilsson, Stefan |
author_sort |
Logares, Ramiro |
title |
Biogeography of bacterial communities exposed to progressive long-term environmental change |
title_short |
Biogeography of bacterial communities exposed to progressive long-term environmental change |
title_full |
Biogeography of bacterial communities exposed to progressive long-term environmental change |
title_fullStr |
Biogeography of bacterial communities exposed to progressive long-term environmental change |
title_full_unstemmed |
Biogeography of bacterial communities exposed to progressive long-term environmental change |
title_sort |
biogeography of bacterial communities exposed to progressive long-term environmental change |
publisher |
Nature Publishing Group |
publishDate |
2013 |
url |
https://lup.lub.lu.se/record/3853633 https://doi.org/10.1038/ismej.2012.168 |
geographic |
Antarctic |
geographic_facet |
Antarctic |
genre |
Antarc* Antarctic Antarctica |
genre_facet |
Antarc* Antarctic Antarctica |
op_source |
The Isme Journal; 7(5), pp 937-948 (2013) ISSN: 1751-7362 |
op_relation |
https://lup.lub.lu.se/record/3853633 http://dx.doi.org/10.1038/ismej.2012.168 wos:000317963300005 scopus:84876822224 pmid:23254515 |
op_doi |
https://doi.org/10.1038/ismej.2012.168 |
container_title |
The ISME Journal |
container_volume |
7 |
container_issue |
5 |
container_start_page |
937 |
op_container_end_page |
948 |
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1766253512671363072 |