The structure and stability of the bacterioplankton community in Antarctic freshwater lakes, subject to extremely rapid environmental change
In this study, variation in the bacterioplankton community structure of three Antarctic lakes of different nutrient status, was determined in relation to physical and chemical gradients at depth and at time intervals, across the seasonal transition from winter ice-cover to the summer ice-free period...
Published in: | FEMS Microbiology Ecology |
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Oxford University Press
2005
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Online Access: | https://nrl.northumbria.ac.uk/id/eprint/25136/ https://doi.org/10.1016/j.femsec.2005.01.002 |
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ftunivnorthumb:oai:nrl.northumbria.ac.uk:25136 2023-05-15T13:35:33+02:00 The structure and stability of the bacterioplankton community in Antarctic freshwater lakes, subject to extremely rapid environmental change Pearce, David 2005 https://nrl.northumbria.ac.uk/id/eprint/25136/ https://doi.org/10.1016/j.femsec.2005.01.002 unknown Oxford University Press Pearce, David (2005) The structure and stability of the bacterioplankton community in Antarctic freshwater lakes, subject to extremely rapid environmental change. FEMS Microbiology Ecology, 53 (1). pp. 61-72. ISSN 0168-6496 C500 Microbiology Article PeerReviewed 2005 ftunivnorthumb https://doi.org/10.1016/j.femsec.2005.01.002 2022-09-25T06:03:08Z In this study, variation in the bacterioplankton community structure of three Antarctic lakes of different nutrient status, was determined in relation to physical and chemical gradients at depth and at time intervals, across the seasonal transition from winter ice-cover to the summer ice-free period. The three lakes studied were: Moss Lake (low nutrient, with typical nutrient concentrations of 80 μg l−1 nitrate and 10 μg l−1 dissolved reactive phosphate), Sombre Lake (low nutrient, but becoming progressively enriched, with typical nutrient concentrations of 185 μg l−1 nitrate and 7 μg l−1 dissolved reactive phosphate) and Heywood Lake (enriched, with typical nutrient concentrations of 1180 μg l−1 nitrate and 124 μg l−1 dissolved reactive phosphate). Bacterioplankton community structure was determined using a combination of PCR amplification of 16S rRNA gene fragments and denaturing gradient gel electrophoresis (DGGE). Results indicated marked changes in this bacterioplankton community structure, which were particularly associated with the transition period. However, significant changes also occurred during the period of holomixis. Comparison of the results from lakes of different nutrient status suggest that increased levels of nutrient input, and in the timing and duration of ice cover will lead to marked changes in the structure and stability of the bacterioplankton community at existing levels of environmental change. Article in Journal/Newspaper Antarc* Antarctic Northumbria University, Newcastle: Northumbria Research Link (NRL) Antarctic Heywood ENVELOPE(-59.683,-59.683,-62.317,-62.317) Heywood Lake ENVELOPE(-45.609,-45.609,-60.691,-60.691) Moss Lake ENVELOPE(-45.623,-45.623,-60.694,-60.694) Sombre Lake ENVELOPE(-45.615,-45.615,-60.687,-60.687) FEMS Microbiology Ecology 53 1 61 72 |
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Open Polar |
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Northumbria University, Newcastle: Northumbria Research Link (NRL) |
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ftunivnorthumb |
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unknown |
topic |
C500 Microbiology |
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C500 Microbiology Pearce, David The structure and stability of the bacterioplankton community in Antarctic freshwater lakes, subject to extremely rapid environmental change |
topic_facet |
C500 Microbiology |
description |
In this study, variation in the bacterioplankton community structure of three Antarctic lakes of different nutrient status, was determined in relation to physical and chemical gradients at depth and at time intervals, across the seasonal transition from winter ice-cover to the summer ice-free period. The three lakes studied were: Moss Lake (low nutrient, with typical nutrient concentrations of 80 μg l−1 nitrate and 10 μg l−1 dissolved reactive phosphate), Sombre Lake (low nutrient, but becoming progressively enriched, with typical nutrient concentrations of 185 μg l−1 nitrate and 7 μg l−1 dissolved reactive phosphate) and Heywood Lake (enriched, with typical nutrient concentrations of 1180 μg l−1 nitrate and 124 μg l−1 dissolved reactive phosphate). Bacterioplankton community structure was determined using a combination of PCR amplification of 16S rRNA gene fragments and denaturing gradient gel electrophoresis (DGGE). Results indicated marked changes in this bacterioplankton community structure, which were particularly associated with the transition period. However, significant changes also occurred during the period of holomixis. Comparison of the results from lakes of different nutrient status suggest that increased levels of nutrient input, and in the timing and duration of ice cover will lead to marked changes in the structure and stability of the bacterioplankton community at existing levels of environmental change. |
format |
Article in Journal/Newspaper |
author |
Pearce, David |
author_facet |
Pearce, David |
author_sort |
Pearce, David |
title |
The structure and stability of the bacterioplankton community in Antarctic freshwater lakes, subject to extremely rapid environmental change |
title_short |
The structure and stability of the bacterioplankton community in Antarctic freshwater lakes, subject to extremely rapid environmental change |
title_full |
The structure and stability of the bacterioplankton community in Antarctic freshwater lakes, subject to extremely rapid environmental change |
title_fullStr |
The structure and stability of the bacterioplankton community in Antarctic freshwater lakes, subject to extremely rapid environmental change |
title_full_unstemmed |
The structure and stability of the bacterioplankton community in Antarctic freshwater lakes, subject to extremely rapid environmental change |
title_sort |
structure and stability of the bacterioplankton community in antarctic freshwater lakes, subject to extremely rapid environmental change |
publisher |
Oxford University Press |
publishDate |
2005 |
url |
https://nrl.northumbria.ac.uk/id/eprint/25136/ https://doi.org/10.1016/j.femsec.2005.01.002 |
long_lat |
ENVELOPE(-59.683,-59.683,-62.317,-62.317) ENVELOPE(-45.609,-45.609,-60.691,-60.691) ENVELOPE(-45.623,-45.623,-60.694,-60.694) ENVELOPE(-45.615,-45.615,-60.687,-60.687) |
geographic |
Antarctic Heywood Heywood Lake Moss Lake Sombre Lake |
geographic_facet |
Antarctic Heywood Heywood Lake Moss Lake Sombre Lake |
genre |
Antarc* Antarctic |
genre_facet |
Antarc* Antarctic |
op_relation |
Pearce, David (2005) The structure and stability of the bacterioplankton community in Antarctic freshwater lakes, subject to extremely rapid environmental change. FEMS Microbiology Ecology, 53 (1). pp. 61-72. ISSN 0168-6496 |
op_doi |
https://doi.org/10.1016/j.femsec.2005.01.002 |
container_title |
FEMS Microbiology Ecology |
container_volume |
53 |
container_issue |
1 |
container_start_page |
61 |
op_container_end_page |
72 |
_version_ |
1766067131348156416 |