Low cyanobacterial diversity in biotopes of the Transantarctic Mountains and Shackleton Range (80-82°S), Antarctica.
peer reviewed The evolutionary history and geographical isolation of the Antarctic continent have produced a unique environment rich in endemic organisms. In many regions of Antarctica, cyanobacteria are the dominant phototrophs in both aquatic and terrestrial ecosystems. We have used microscopic an...
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2011
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Online Access: | https://orbi.uliege.be/handle/2268/95145 https://doi.org/10.1111/j.1574-6941.2011.01132.x |
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ftorbi:oai:orbi.ulg.ac.be:2268/95145 2024-04-21T07:52:38+00:00 Low cyanobacterial diversity in biotopes of the Transantarctic Mountains and Shackleton Range (80-82°S), Antarctica. Faible diversité cyanobactérienne dans les biotopes des Montagnes Transantarctiques et Shackleton Range (80-82°S), Antarctique FERNANDEZ CARAZO, Rafael Hodgson, Dominic Convey, Pete Wilmotte, Annick CIP - Centre d'Ingénierie des Protéines - ULiège 2011 https://orbi.uliege.be/handle/2268/95145 https://doi.org/10.1111/j.1574-6941.2011.01132.x en eng Blackwell Publishing http://onlinelibrary.wiley.com/doi/10.1111/j.1574-6941.2011.01132.x/abstract urn:issn:0168-6496 urn:issn:1574-6941 https://orbi.uliege.be/handle/2268/95145 info:hdl:2268/95145 doi:10.1111/j.1574-6941.2011.01132.x scopus-id:2-s2.0-79961170711 info:pmid:21592144 restricted access http://purl.org/coar/access_right/c_16ec info:eu-repo/semantics/restrictedAccess FEMS Microbiology Ecology, 77, 503–517 (2011) cyanobacteria Antarctica Biodiversity Transantarctic Mountains lakes Life sciences Environmental sciences & ecology Microbiology Sciences du vivant Sciences de l’environnement & écologie Microbiologie journal article http://purl.org/coar/resource_type/c_6501 info:eu-repo/semantics/article peer reviewed 2011 ftorbi https://doi.org/10.1111/j.1574-6941.2011.01132.x 2024-03-27T14:59:23Z peer reviewed The evolutionary history and geographical isolation of the Antarctic continent have produced a unique environment rich in endemic organisms. In many regions of Antarctica, cyanobacteria are the dominant phototrophs in both aquatic and terrestrial ecosystems. We have used microscopic and molecular approaches to examine the cyanobacterial diversity of biotopes at two inland continental Antarctic sites (80-82°S). These are amongst the most southerly locations where freshwater-related ecosystems are present. Results showed a low cyanobacterial diversity, with only 3-7 Operational Taxonomic Units (OTUs) per sample obtained by a combination of strain isolations, clone libraries and DGGE based on 16S rRNA genes. One OTU was potentially endemic to Antarctica and is present in several regions of the continent. Four OTUs were shared by the samples from Forlidas Pond and the surrounding terrestrial mats. Only one OTU, but no Internal Transcribed Spacer (ITS) sequences, was common to Forlidas Pond and Lundström Lake. The ITS sequences were shown to further discriminate different genotypes within the OTUs. ITS sequences from Antarctic locations appear more closely related to each other than to non-Antarctic sequences. Future research in inland continental Antarctica will shed more light on the geographical distribution and evolutionary isolation of cyanobacteria in these extreme habitats. AMBIO Article in Journal/Newspaper Antarc* Antarctic Antarctica Antarctique* University of Liège: ORBi (Open Repository and Bibliography) FEMS Microbiology Ecology 77 3 503 517 |
institution |
Open Polar |
collection |
University of Liège: ORBi (Open Repository and Bibliography) |
op_collection_id |
ftorbi |
language |
English |
topic |
cyanobacteria Antarctica Biodiversity Transantarctic Mountains lakes Life sciences Environmental sciences & ecology Microbiology Sciences du vivant Sciences de l’environnement & écologie Microbiologie |
spellingShingle |
cyanobacteria Antarctica Biodiversity Transantarctic Mountains lakes Life sciences Environmental sciences & ecology Microbiology Sciences du vivant Sciences de l’environnement & écologie Microbiologie FERNANDEZ CARAZO, Rafael Hodgson, Dominic Convey, Pete Wilmotte, Annick Low cyanobacterial diversity in biotopes of the Transantarctic Mountains and Shackleton Range (80-82°S), Antarctica. |
topic_facet |
cyanobacteria Antarctica Biodiversity Transantarctic Mountains lakes Life sciences Environmental sciences & ecology Microbiology Sciences du vivant Sciences de l’environnement & écologie Microbiologie |
description |
peer reviewed The evolutionary history and geographical isolation of the Antarctic continent have produced a unique environment rich in endemic organisms. In many regions of Antarctica, cyanobacteria are the dominant phototrophs in both aquatic and terrestrial ecosystems. We have used microscopic and molecular approaches to examine the cyanobacterial diversity of biotopes at two inland continental Antarctic sites (80-82°S). These are amongst the most southerly locations where freshwater-related ecosystems are present. Results showed a low cyanobacterial diversity, with only 3-7 Operational Taxonomic Units (OTUs) per sample obtained by a combination of strain isolations, clone libraries and DGGE based on 16S rRNA genes. One OTU was potentially endemic to Antarctica and is present in several regions of the continent. Four OTUs were shared by the samples from Forlidas Pond and the surrounding terrestrial mats. Only one OTU, but no Internal Transcribed Spacer (ITS) sequences, was common to Forlidas Pond and Lundström Lake. The ITS sequences were shown to further discriminate different genotypes within the OTUs. ITS sequences from Antarctic locations appear more closely related to each other than to non-Antarctic sequences. Future research in inland continental Antarctica will shed more light on the geographical distribution and evolutionary isolation of cyanobacteria in these extreme habitats. AMBIO |
author2 |
CIP - Centre d'Ingénierie des Protéines - ULiège |
format |
Article in Journal/Newspaper |
author |
FERNANDEZ CARAZO, Rafael Hodgson, Dominic Convey, Pete Wilmotte, Annick |
author_facet |
FERNANDEZ CARAZO, Rafael Hodgson, Dominic Convey, Pete Wilmotte, Annick |
author_sort |
FERNANDEZ CARAZO, Rafael |
title |
Low cyanobacterial diversity in biotopes of the Transantarctic Mountains and Shackleton Range (80-82°S), Antarctica. |
title_short |
Low cyanobacterial diversity in biotopes of the Transantarctic Mountains and Shackleton Range (80-82°S), Antarctica. |
title_full |
Low cyanobacterial diversity in biotopes of the Transantarctic Mountains and Shackleton Range (80-82°S), Antarctica. |
title_fullStr |
Low cyanobacterial diversity in biotopes of the Transantarctic Mountains and Shackleton Range (80-82°S), Antarctica. |
title_full_unstemmed |
Low cyanobacterial diversity in biotopes of the Transantarctic Mountains and Shackleton Range (80-82°S), Antarctica. |
title_sort |
low cyanobacterial diversity in biotopes of the transantarctic mountains and shackleton range (80-82°s), antarctica. |
publisher |
Blackwell Publishing |
publishDate |
2011 |
url |
https://orbi.uliege.be/handle/2268/95145 https://doi.org/10.1111/j.1574-6941.2011.01132.x |
genre |
Antarc* Antarctic Antarctica Antarctique* |
genre_facet |
Antarc* Antarctic Antarctica Antarctique* |
op_source |
FEMS Microbiology Ecology, 77, 503–517 (2011) |
op_relation |
http://onlinelibrary.wiley.com/doi/10.1111/j.1574-6941.2011.01132.x/abstract urn:issn:0168-6496 urn:issn:1574-6941 https://orbi.uliege.be/handle/2268/95145 info:hdl:2268/95145 doi:10.1111/j.1574-6941.2011.01132.x scopus-id:2-s2.0-79961170711 info:pmid:21592144 |
op_rights |
restricted access http://purl.org/coar/access_right/c_16ec info:eu-repo/semantics/restrictedAccess |
op_doi |
https://doi.org/10.1111/j.1574-6941.2011.01132.x |
container_title |
FEMS Microbiology Ecology |
container_volume |
77 |
container_issue |
3 |
container_start_page |
503 |
op_container_end_page |
517 |
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1796935835687321600 |