Biogeographical distribution and ecological ranges of benthic cyanobacteria in East Antarctic lakes
For the first time, the cyanobacterial diversity from microbial mats in lakes of Eastern Antarctica was investigated using microscopic and molecular approaches. The present study assessed the biogeographical distribution of cyanobacteria in Antarctica. Five samples were taken from four lakes spannin...
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ftnerc:oai:nora.nerc.ac.uk:138 2024-06-09T07:40:40+00:00 Biogeographical distribution and ecological ranges of benthic cyanobacteria in East Antarctic lakes Taton, Arnaud Grubisic, Stana Balthasart, Pierre Hodgson, Dominic A. Laybourn-Parry, Johanna Wilmotte, Annick 2006 http://nora.nerc.ac.uk/id/eprint/138/ https://doi.org/10.1111/j.1574-6941.2006.00110.x unknown Blackwell Taton, Arnaud; Grubisic, Stana; Balthasart, Pierre; Hodgson, Dominic A. orcid:0000-0002-3841-3746 Laybourn-Parry, Johanna; Wilmotte, Annick. 2006 Biogeographical distribution and ecological ranges of benthic cyanobacteria in East Antarctic lakes. FEMS Microbiology Ecology, 57 (2). 272-289. https://doi.org/10.1111/j.1574-6941.2006.00110.x <https://doi.org/10.1111/j.1574-6941.2006.00110.x> Biology and Microbiology Publication - Article PeerReviewed 2006 ftnerc https://doi.org/10.1111/j.1574-6941.2006.00110.x 2024-05-15T08:39:04Z For the first time, the cyanobacterial diversity from microbial mats in lakes of Eastern Antarctica was investigated using microscopic and molecular approaches. The present study assessed the biogeographical distribution of cyanobacteria in Antarctica. Five samples were taken from four lakes spanning a range of different ecological environments in Larsemann Hills, Vestfold Hills and Rauer Islands to evaluate the influence of lake characteristics on the cyanobacterial diversity. Seventeen morphospecies and 28 16S rRNA gene-based operational taxonomic units belonging to the Oscillatoriales, Nostocales and Chroococcales were identified. The internal transcribed spacer was evaluated to complement the 16S rRNA gene data and showed similar but more clear-cut tendencies. The molecular approach suggested that potential Antarctic endemic species, including a previously undiscovered diversity, are more abundant than has been estimated by morphological methods. Moreover, operational taxonomic units, also found outside Antarctica, were more widespread over the continent than potential endemics. The cyanobacterial diversity of the most saline lakes was found to differ from the others, and correlations between the sampling depth and the cyanobacterial communities can also be drawn. Comparison with database sequences illustrated the ubiquity of several cyanobacterial operational taxonomic units and their remarkable range of tolerance to harsh environmental conditions. Article in Journal/Newspaper Antarc* Antarctic Antarctica Rauer Islands Natural Environment Research Council: NERC Open Research Archive Antarctic Four Lakes ENVELOPE(-126.826,-126.826,54.858,54.858) Larsemann Hills ENVELOPE(76.217,76.217,-69.400,-69.400) Rauer Islands ENVELOPE(77.833,77.833,-68.850,-68.850) Vestfold Vestfold Hills FEMS Microbiology Ecology 57 2 272 289 |
institution |
Open Polar |
collection |
Natural Environment Research Council: NERC Open Research Archive |
op_collection_id |
ftnerc |
language |
unknown |
topic |
Biology and Microbiology |
spellingShingle |
Biology and Microbiology Taton, Arnaud Grubisic, Stana Balthasart, Pierre Hodgson, Dominic A. Laybourn-Parry, Johanna Wilmotte, Annick Biogeographical distribution and ecological ranges of benthic cyanobacteria in East Antarctic lakes |
topic_facet |
Biology and Microbiology |
description |
For the first time, the cyanobacterial diversity from microbial mats in lakes of Eastern Antarctica was investigated using microscopic and molecular approaches. The present study assessed the biogeographical distribution of cyanobacteria in Antarctica. Five samples were taken from four lakes spanning a range of different ecological environments in Larsemann Hills, Vestfold Hills and Rauer Islands to evaluate the influence of lake characteristics on the cyanobacterial diversity. Seventeen morphospecies and 28 16S rRNA gene-based operational taxonomic units belonging to the Oscillatoriales, Nostocales and Chroococcales were identified. The internal transcribed spacer was evaluated to complement the 16S rRNA gene data and showed similar but more clear-cut tendencies. The molecular approach suggested that potential Antarctic endemic species, including a previously undiscovered diversity, are more abundant than has been estimated by morphological methods. Moreover, operational taxonomic units, also found outside Antarctica, were more widespread over the continent than potential endemics. The cyanobacterial diversity of the most saline lakes was found to differ from the others, and correlations between the sampling depth and the cyanobacterial communities can also be drawn. Comparison with database sequences illustrated the ubiquity of several cyanobacterial operational taxonomic units and their remarkable range of tolerance to harsh environmental conditions. |
format |
Article in Journal/Newspaper |
author |
Taton, Arnaud Grubisic, Stana Balthasart, Pierre Hodgson, Dominic A. Laybourn-Parry, Johanna Wilmotte, Annick |
author_facet |
Taton, Arnaud Grubisic, Stana Balthasart, Pierre Hodgson, Dominic A. Laybourn-Parry, Johanna Wilmotte, Annick |
author_sort |
Taton, Arnaud |
title |
Biogeographical distribution and ecological ranges of benthic cyanobacteria in East Antarctic lakes |
title_short |
Biogeographical distribution and ecological ranges of benthic cyanobacteria in East Antarctic lakes |
title_full |
Biogeographical distribution and ecological ranges of benthic cyanobacteria in East Antarctic lakes |
title_fullStr |
Biogeographical distribution and ecological ranges of benthic cyanobacteria in East Antarctic lakes |
title_full_unstemmed |
Biogeographical distribution and ecological ranges of benthic cyanobacteria in East Antarctic lakes |
title_sort |
biogeographical distribution and ecological ranges of benthic cyanobacteria in east antarctic lakes |
publisher |
Blackwell |
publishDate |
2006 |
url |
http://nora.nerc.ac.uk/id/eprint/138/ https://doi.org/10.1111/j.1574-6941.2006.00110.x |
long_lat |
ENVELOPE(-126.826,-126.826,54.858,54.858) ENVELOPE(76.217,76.217,-69.400,-69.400) ENVELOPE(77.833,77.833,-68.850,-68.850) |
geographic |
Antarctic Four Lakes Larsemann Hills Rauer Islands Vestfold Vestfold Hills |
geographic_facet |
Antarctic Four Lakes Larsemann Hills Rauer Islands Vestfold Vestfold Hills |
genre |
Antarc* Antarctic Antarctica Rauer Islands |
genre_facet |
Antarc* Antarctic Antarctica Rauer Islands |
op_relation |
Taton, Arnaud; Grubisic, Stana; Balthasart, Pierre; Hodgson, Dominic A. orcid:0000-0002-3841-3746 Laybourn-Parry, Johanna; Wilmotte, Annick. 2006 Biogeographical distribution and ecological ranges of benthic cyanobacteria in East Antarctic lakes. FEMS Microbiology Ecology, 57 (2). 272-289. https://doi.org/10.1111/j.1574-6941.2006.00110.x <https://doi.org/10.1111/j.1574-6941.2006.00110.x> |
op_doi |
https://doi.org/10.1111/j.1574-6941.2006.00110.x |
container_title |
FEMS Microbiology Ecology |
container_volume |
57 |
container_issue |
2 |
container_start_page |
272 |
op_container_end_page |
289 |
_version_ |
1801384025643810816 |