Heterotrophic bacterial diversity in aquatic microbial mat communities from Antarctica
Heterotrophic bacteria isolated from five aquatic microbial mat samples from different locations in continental Antarctica and the Antarctic Peninsula were compared to assess their biodiversity. A total of 2,225 isolates obtained on different media and at different temperatures were included. After...
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ftunivgent:oai:archive.ugent.be:2112140 2023-10-01T03:51:16+02:00 Heterotrophic bacterial diversity in aquatic microbial mat communities from Antarctica Peeters, Karolien Verleyen, Elie Hodgson, Dominic A Convey, Peter Ertz, Damien Vyverman, Wim Willems, Anne 2012 application/pdf https://biblio.ugent.be/publication/2112140 http://hdl.handle.net/1854/LU-2112140 https://doi.org/10.1007/s00300-011-1100-4 https://biblio.ugent.be/publication/2112140/file/2112194 eng eng https://biblio.ugent.be/publication/2112140 http://hdl.handle.net/1854/LU-2112140 http://dx.doi.org/10.1007/s00300-011-1100-4 https://biblio.ugent.be/publication/2112140/file/2112194 No license (in copyright) info:eu-repo/semantics/openAccess POLAR BIOLOGY ISSN: 0722-4060 Biology and Life Sciences Cultivation Microbial diversity 16S rRNA gene sequencing ASPA PCA MCMURDO DRY VALLEYS SP-NOV GEN.-NOV FRESH-WATER SP. NOV EMENDED DESCRIPTION SCHIRMACHER OASIS EAST ANTARCTICA VICTORIA LAND LAKE FRYXELL journalArticle info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion 2012 ftunivgent https://doi.org/10.1007/s00300-011-1100-4 2023-09-06T22:30:56Z Heterotrophic bacteria isolated from five aquatic microbial mat samples from different locations in continental Antarctica and the Antarctic Peninsula were compared to assess their biodiversity. A total of 2,225 isolates obtained on different media and at different temperatures were included. After an initial grouping by whole-genome fingerprinting, partial 16S rRNA gene sequence analysis was used for further identification. These results were compared with previously published data obtained with the same methodology from terrestrial and aquatic microbial mat samples from two additional Antarctic regions. The phylotypes recovered in all these samples belonged to five major phyla, Actinobacteria, Bacteroidetes, Proteobacteria, Firmicutes and Deinococcus-Thermus, and included several potentially new taxa. Ordination analyses were performed in order to explore the variance in the diversity of the samples at genus level. Habitat type (terrestrial vs. aquatic) and specific conductivity in the lacustrine systems significantly explained the variation in bacterial community structure. Comparison of the phylotypes with sequences from public databases showed that a considerable proportion (36.9%) is currently known only from Antarctica. This suggests that in Antarctica, both cosmopolitan taxa and taxa with limited dispersal and a history of long-term isolated evolution occur. Article in Journal/Newspaper Antarc* Antarctic Antarctic Peninsula Antarctica East Antarctica McMurdo Dry Valleys Polar Biology Victoria Land Ghent University Academic Bibliography Antarctic Antarctic Peninsula East Antarctica Fryxell ENVELOPE(163.183,163.183,-77.617,-77.617) Lake Fryxell ENVELOPE(163.183,163.183,-77.617,-77.617) McMurdo Dry Valleys The Antarctic Victoria Land Polar Biology 35 4 543 554 |
institution |
Open Polar |
collection |
Ghent University Academic Bibliography |
op_collection_id |
ftunivgent |
language |
English |
topic |
Biology and Life Sciences Cultivation Microbial diversity 16S rRNA gene sequencing ASPA PCA MCMURDO DRY VALLEYS SP-NOV GEN.-NOV FRESH-WATER SP. NOV EMENDED DESCRIPTION SCHIRMACHER OASIS EAST ANTARCTICA VICTORIA LAND LAKE FRYXELL |
spellingShingle |
Biology and Life Sciences Cultivation Microbial diversity 16S rRNA gene sequencing ASPA PCA MCMURDO DRY VALLEYS SP-NOV GEN.-NOV FRESH-WATER SP. NOV EMENDED DESCRIPTION SCHIRMACHER OASIS EAST ANTARCTICA VICTORIA LAND LAKE FRYXELL Peeters, Karolien Verleyen, Elie Hodgson, Dominic A Convey, Peter Ertz, Damien Vyverman, Wim Willems, Anne Heterotrophic bacterial diversity in aquatic microbial mat communities from Antarctica |
topic_facet |
Biology and Life Sciences Cultivation Microbial diversity 16S rRNA gene sequencing ASPA PCA MCMURDO DRY VALLEYS SP-NOV GEN.-NOV FRESH-WATER SP. NOV EMENDED DESCRIPTION SCHIRMACHER OASIS EAST ANTARCTICA VICTORIA LAND LAKE FRYXELL |
description |
Heterotrophic bacteria isolated from five aquatic microbial mat samples from different locations in continental Antarctica and the Antarctic Peninsula were compared to assess their biodiversity. A total of 2,225 isolates obtained on different media and at different temperatures were included. After an initial grouping by whole-genome fingerprinting, partial 16S rRNA gene sequence analysis was used for further identification. These results were compared with previously published data obtained with the same methodology from terrestrial and aquatic microbial mat samples from two additional Antarctic regions. The phylotypes recovered in all these samples belonged to five major phyla, Actinobacteria, Bacteroidetes, Proteobacteria, Firmicutes and Deinococcus-Thermus, and included several potentially new taxa. Ordination analyses were performed in order to explore the variance in the diversity of the samples at genus level. Habitat type (terrestrial vs. aquatic) and specific conductivity in the lacustrine systems significantly explained the variation in bacterial community structure. Comparison of the phylotypes with sequences from public databases showed that a considerable proportion (36.9%) is currently known only from Antarctica. This suggests that in Antarctica, both cosmopolitan taxa and taxa with limited dispersal and a history of long-term isolated evolution occur. |
format |
Article in Journal/Newspaper |
author |
Peeters, Karolien Verleyen, Elie Hodgson, Dominic A Convey, Peter Ertz, Damien Vyverman, Wim Willems, Anne |
author_facet |
Peeters, Karolien Verleyen, Elie Hodgson, Dominic A Convey, Peter Ertz, Damien Vyverman, Wim Willems, Anne |
author_sort |
Peeters, Karolien |
title |
Heterotrophic bacterial diversity in aquatic microbial mat communities from Antarctica |
title_short |
Heterotrophic bacterial diversity in aquatic microbial mat communities from Antarctica |
title_full |
Heterotrophic bacterial diversity in aquatic microbial mat communities from Antarctica |
title_fullStr |
Heterotrophic bacterial diversity in aquatic microbial mat communities from Antarctica |
title_full_unstemmed |
Heterotrophic bacterial diversity in aquatic microbial mat communities from Antarctica |
title_sort |
heterotrophic bacterial diversity in aquatic microbial mat communities from antarctica |
publishDate |
2012 |
url |
https://biblio.ugent.be/publication/2112140 http://hdl.handle.net/1854/LU-2112140 https://doi.org/10.1007/s00300-011-1100-4 https://biblio.ugent.be/publication/2112140/file/2112194 |
long_lat |
ENVELOPE(163.183,163.183,-77.617,-77.617) ENVELOPE(163.183,163.183,-77.617,-77.617) |
geographic |
Antarctic Antarctic Peninsula East Antarctica Fryxell Lake Fryxell McMurdo Dry Valleys The Antarctic Victoria Land |
geographic_facet |
Antarctic Antarctic Peninsula East Antarctica Fryxell Lake Fryxell McMurdo Dry Valleys The Antarctic Victoria Land |
genre |
Antarc* Antarctic Antarctic Peninsula Antarctica East Antarctica McMurdo Dry Valleys Polar Biology Victoria Land |
genre_facet |
Antarc* Antarctic Antarctic Peninsula Antarctica East Antarctica McMurdo Dry Valleys Polar Biology Victoria Land |
op_source |
POLAR BIOLOGY ISSN: 0722-4060 |
op_relation |
https://biblio.ugent.be/publication/2112140 http://hdl.handle.net/1854/LU-2112140 http://dx.doi.org/10.1007/s00300-011-1100-4 https://biblio.ugent.be/publication/2112140/file/2112194 |
op_rights |
No license (in copyright) info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1007/s00300-011-1100-4 |
container_title |
Polar Biology |
container_volume |
35 |
container_issue |
4 |
container_start_page |
543 |
op_container_end_page |
554 |
_version_ |
1778534118000164864 |