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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ftubristolcris:oai:research-information.bris.ac.uk:publications/624d63ca-e4b9-488c-afa3-af21dd8e5176 2024-05-19T07:32:20+00:00 Biogeography of bacterial communities exposed to progressive long-term environmental change. Logares, Ramiro Lindstrom, Eva Langenheder, Silke Logue, Jurg Patterson, Harriet Laybourn-Parry, Jo Rengefors, Karin Tranvik, Lars Bertilsson, Stefan 2012-12-20 https://hdl.handle.net/1983/624d63ca-e4b9-488c-afa3-af21dd8e5176 https://research-information.bris.ac.uk/en/publications/624d63ca-e4b9-488c-afa3-af21dd8e5176 https://doi.org/10.1038/ismej.2012.168 eng eng https://research-information.bris.ac.uk/en/publications/624d63ca-e4b9-488c-afa3-af21dd8e5176 info:eu-repo/semantics/restrictedAccess Logares , R , Lindstrom , E , Langenheder , S , Logue , J , Patterson , H , Laybourn-Parry , J , Rengefors , K , Tranvik , L & Bertilsson , S 2012 , ' Biogeography of bacterial communities exposed to progressive long-term environmental change. ' , ISME Journal . https://doi.org/10.1038/ismej.2012.168 Antarctica bacteria environmental chnage long-term pyrosequencing salinoty article 2012 ftubristolcris https://doi.org/10.1038/ismej.2012.168 2024-04-30T23:42:49Z 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. Article in Journal/Newspaper Antarc* Antarctic Antarctica University of Bristol: Bristol Research The ISME Journal 7 5 937 948 |
institution |
Open Polar |
collection |
University of Bristol: Bristol Research |
op_collection_id |
ftubristolcris |
language |
English |
topic |
Antarctica bacteria environmental chnage long-term pyrosequencing salinoty |
spellingShingle |
Antarctica bacteria environmental chnage long-term pyrosequencing salinoty Logares, Ramiro Lindstrom, Eva Langenheder, Silke Logue, Jurg Patterson, Harriet Laybourn-Parry, Jo Rengefors, Karin Tranvik, Lars Bertilsson, Stefan Biogeography of bacterial communities exposed to progressive long-term environmental change. |
topic_facet |
Antarctica bacteria environmental chnage long-term pyrosequencing salinoty |
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. |
format |
Article in Journal/Newspaper |
author |
Logares, Ramiro Lindstrom, Eva Langenheder, Silke Logue, Jurg Patterson, Harriet Laybourn-Parry, Jo Rengefors, Karin Tranvik, Lars Bertilsson, Stefan |
author_facet |
Logares, Ramiro Lindstrom, Eva Langenheder, Silke Logue, Jurg Patterson, Harriet Laybourn-Parry, Jo 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. |
publishDate |
2012 |
url |
https://hdl.handle.net/1983/624d63ca-e4b9-488c-afa3-af21dd8e5176 https://research-information.bris.ac.uk/en/publications/624d63ca-e4b9-488c-afa3-af21dd8e5176 https://doi.org/10.1038/ismej.2012.168 |
genre |
Antarc* Antarctic Antarctica |
genre_facet |
Antarc* Antarctic Antarctica |
op_source |
Logares , R , Lindstrom , E , Langenheder , S , Logue , J , Patterson , H , Laybourn-Parry , J , Rengefors , K , Tranvik , L & Bertilsson , S 2012 , ' Biogeography of bacterial communities exposed to progressive long-term environmental change. ' , ISME Journal . https://doi.org/10.1038/ismej.2012.168 |
op_relation |
https://research-information.bris.ac.uk/en/publications/624d63ca-e4b9-488c-afa3-af21dd8e5176 |
op_rights |
info:eu-repo/semantics/restrictedAccess |
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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1799470344740798464 |