The CCAMBIO project to characterize the biodiversity and distribution of microorganisms in microbial mats of Antarctic lakes
The BelSPO project CCAMBIO aims to study the biogeographical distribution of microorganisms in lacustrine microbial mats using a combination of techniques including microscopical observations (light and electronic microscopy), strain isolation, and molecular diversity assessment using Next Generatio...
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ftorbi:oai:orbi.ulg.ac.be:2268/196307 2024-04-21T07:49:42+00:00 The CCAMBIO project to characterize the biodiversity and distribution of microorganisms in microbial mats of Antarctic lakes Durieu, Benoit Lara, Yannick Obbels, Dagmar Pinseels, Evelyne Stelmach Pessi, Igor Sweetlove, Maxime Tytgat, Bjorn Van De Putte, Anton Van De Vijver, Bart Verleyen, Elie Vyverman, Wim Willems, Anne Wilmotte, Annick 2016-04-29 A0 https://orbi.uliege.be/handle/2268/196307 en eng https://orbi.uliege.be/handle/2268/196307 info:hdl:2268/196307 Belgian National Committee for Geodesy and Geophysics (BNCGG) - Belgian National Committee on Antarctic Research (BNCAR) 2016 Symposium, Brussels, Belgium [BE], 29-04-2016 microbiology antarctic cyanobacteria Life sciences Environmental sciences & ecology Biochemistry biophysics & molecular biology Sciences du vivant Sciences de l’environnement & écologie Biochimie biophysique & biologie moléculaire Microbiologie conference poster not in proceedings http://purl.org/coar/resource_type/c_18co info:eu-repo/semantics/conferencePoster 2016 ftorbi 2024-03-27T14:47:14Z The BelSPO project CCAMBIO aims to study the biogeographical distribution of microorganisms in lacustrine microbial mats using a combination of techniques including microscopical observations (light and electronic microscopy), strain isolation, and molecular diversity assessment using Next Generation Sequencing. The samples were collected in different Antarctic and sub-Antarctic biogeographical regions. A detailed microscopic study of the Antarctic diatom diversity allowed to revise a number of taxa and discover new ones. A multivariate analysis of diatoms showed that these regions hosted different diatom flora. Endemic diatom taxa were also observed, and a multigene molecular phylogeny of Pinnularia borealis showed a high genetic diversity. Pilot studies were conducted for the microeukaryotes and cyanobacteria to select NGS protocols and bioinformatic pipelines. Preliminary multivariate analysis of over 100 samples revealed that distinct biogeographic zones could be recognized in both the prokaryote and eukaryote data, which is in agreement with the classical subdivision of the Antarctic Realm into Maritime Antarctica, Continental Antarctica and the Sub-Antarctic Islands generally observed in plants and animals. Moreover, Sub-Antarctic assemblages harboured more complex foodwebs, with quite diverse metazoan groups. Lakes on the continent, however, were characterised by fewer metazoan groups and a greater importance of microbial herbivores and secondary consumers, including a relative high diversity of ciliates and tardigrades. Variation partitioning analysis revealed that spatial variables that approximated large-scale regional contrasts in historical (e.g. deglaciation history, geological origin) and climatic factors (e.g. mean annual air temperature) significantly explained the largest portion of the observed variation in community structure for eukaryotes, while in the prokaryote data environmental gradients related to conductivity were more important. In a first analysis of microbial mats from five ... Conference Object Antarc* Antarctic Antarctica University of Liège: ORBi (Open Repository and Bibliography) |
institution |
Open Polar |
collection |
University of Liège: ORBi (Open Repository and Bibliography) |
op_collection_id |
ftorbi |
language |
English |
topic |
microbiology antarctic cyanobacteria Life sciences Environmental sciences & ecology Biochemistry biophysics & molecular biology Sciences du vivant Sciences de l’environnement & écologie Biochimie biophysique & biologie moléculaire Microbiologie |
spellingShingle |
microbiology antarctic cyanobacteria Life sciences Environmental sciences & ecology Biochemistry biophysics & molecular biology Sciences du vivant Sciences de l’environnement & écologie Biochimie biophysique & biologie moléculaire Microbiologie Durieu, Benoit Lara, Yannick Obbels, Dagmar Pinseels, Evelyne Stelmach Pessi, Igor Sweetlove, Maxime Tytgat, Bjorn Van De Putte, Anton Van De Vijver, Bart Verleyen, Elie Vyverman, Wim Willems, Anne Wilmotte, Annick The CCAMBIO project to characterize the biodiversity and distribution of microorganisms in microbial mats of Antarctic lakes |
topic_facet |
microbiology antarctic cyanobacteria Life sciences Environmental sciences & ecology Biochemistry biophysics & molecular biology Sciences du vivant Sciences de l’environnement & écologie Biochimie biophysique & biologie moléculaire Microbiologie |
description |
The BelSPO project CCAMBIO aims to study the biogeographical distribution of microorganisms in lacustrine microbial mats using a combination of techniques including microscopical observations (light and electronic microscopy), strain isolation, and molecular diversity assessment using Next Generation Sequencing. The samples were collected in different Antarctic and sub-Antarctic biogeographical regions. A detailed microscopic study of the Antarctic diatom diversity allowed to revise a number of taxa and discover new ones. A multivariate analysis of diatoms showed that these regions hosted different diatom flora. Endemic diatom taxa were also observed, and a multigene molecular phylogeny of Pinnularia borealis showed a high genetic diversity. Pilot studies were conducted for the microeukaryotes and cyanobacteria to select NGS protocols and bioinformatic pipelines. Preliminary multivariate analysis of over 100 samples revealed that distinct biogeographic zones could be recognized in both the prokaryote and eukaryote data, which is in agreement with the classical subdivision of the Antarctic Realm into Maritime Antarctica, Continental Antarctica and the Sub-Antarctic Islands generally observed in plants and animals. Moreover, Sub-Antarctic assemblages harboured more complex foodwebs, with quite diverse metazoan groups. Lakes on the continent, however, were characterised by fewer metazoan groups and a greater importance of microbial herbivores and secondary consumers, including a relative high diversity of ciliates and tardigrades. Variation partitioning analysis revealed that spatial variables that approximated large-scale regional contrasts in historical (e.g. deglaciation history, geological origin) and climatic factors (e.g. mean annual air temperature) significantly explained the largest portion of the observed variation in community structure for eukaryotes, while in the prokaryote data environmental gradients related to conductivity were more important. In a first analysis of microbial mats from five ... |
format |
Conference Object |
author |
Durieu, Benoit Lara, Yannick Obbels, Dagmar Pinseels, Evelyne Stelmach Pessi, Igor Sweetlove, Maxime Tytgat, Bjorn Van De Putte, Anton Van De Vijver, Bart Verleyen, Elie Vyverman, Wim Willems, Anne Wilmotte, Annick |
author_facet |
Durieu, Benoit Lara, Yannick Obbels, Dagmar Pinseels, Evelyne Stelmach Pessi, Igor Sweetlove, Maxime Tytgat, Bjorn Van De Putte, Anton Van De Vijver, Bart Verleyen, Elie Vyverman, Wim Willems, Anne Wilmotte, Annick |
author_sort |
Durieu, Benoit |
title |
The CCAMBIO project to characterize the biodiversity and distribution of microorganisms in microbial mats of Antarctic lakes |
title_short |
The CCAMBIO project to characterize the biodiversity and distribution of microorganisms in microbial mats of Antarctic lakes |
title_full |
The CCAMBIO project to characterize the biodiversity and distribution of microorganisms in microbial mats of Antarctic lakes |
title_fullStr |
The CCAMBIO project to characterize the biodiversity and distribution of microorganisms in microbial mats of Antarctic lakes |
title_full_unstemmed |
The CCAMBIO project to characterize the biodiversity and distribution of microorganisms in microbial mats of Antarctic lakes |
title_sort |
ccambio project to characterize the biodiversity and distribution of microorganisms in microbial mats of antarctic lakes |
publishDate |
2016 |
url |
https://orbi.uliege.be/handle/2268/196307 |
genre |
Antarc* Antarctic Antarctica |
genre_facet |
Antarc* Antarctic Antarctica |
op_source |
Belgian National Committee for Geodesy and Geophysics (BNCGG) - Belgian National Committee on Antarctic Research (BNCAR) 2016 Symposium, Brussels, Belgium [BE], 29-04-2016 |
op_relation |
https://orbi.uliege.be/handle/2268/196307 info:hdl:2268/196307 |
_version_ |
1796933717297463296 |