Characterization of Leptolyngbya and Phormidium diversity in Antarctic biotopes
Thin filamentous cyanobacteria identified by morphology as Leptolyngbya and Phormidium are common in Antarctic biotopes, ranging from microbial mats in lakes and seepages to terrestrial biofilms and crusts. Due to their morphological simplicity, a large number of species were described but the genet...
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ftorbi:oai:orbi.ulg.ac.be:2268/205888 2024-04-21T07:52:39+00:00 Characterization of Leptolyngbya and Phormidium diversity in Antarctic biotopes Lara, Yannick Durieu, Benoit Borderie, Fabien Stelmach Pessi, Igor Crahay, Charlotte Deblander, Victor Geelen, Nicolas Iovino, Margaud Defise, Antoine Haywood, Dail Laughinghouse Wilmotte, Annick CIP - Centre d'Ingénierie des Protéines - ULiège 2016-08 A3 https://orbi.uliege.be/handle/2268/205888 en eng https://orbi.uliege.be/handle/2268/205888 info:hdl:2268/205888 34st Scientific Committee on Antarctic Research (SCAR) Biennal Meetings, Kuala Lumpur, Malaysia [MY], from 20-08-2016 to 30-08-2016 cyanobacterium Leptolyngbya Phormidium taxonomy Life sciences Biochemistry biophysics & molecular biology Environmental sciences & ecology Microbiology Sciences du vivant Biochimie biophysique & biologie moléculaire Sciences de l’environnement & écologie Microbiologie conference poster not in proceedings http://purl.org/coar/resource_type/c_18co info:eu-repo/semantics/conferencePoster 2016 ftorbi 2024-03-27T14:51:19Z Thin filamentous cyanobacteria identified by morphology as Leptolyngbya and Phormidium are common in Antarctic biotopes, ranging from microbial mats in lakes and seepages to terrestrial biofilms and crusts. Due to their morphological simplicity, a large number of species were described but the genetic basis of these taxa is largely unknown. The litterature shows that these genera are polyphyletic and that they need detailled revisions.The isolation of strains in unialgal cultures is the first step of an asssessment of the real diversity of these genera. Here we describe the molecular analysis of Antarctic Leptolyngbya antarctica, L. cf fragilis, L. glacialis and Phormidium priestleyi using sequences of different taxonomic markers, the 16S rRNA gene, the ITS and the rpoC1 gene. They appear distributed into four lineages. The phylogenetic tree supports the transfer of certain Phormidium priestleyi strains to the genus Phormidesmis. Similarly, some L. antarctica clearly belong to the new genus Nodosilinea. CCAMBIO 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 |
cyanobacterium Leptolyngbya Phormidium taxonomy Life sciences Biochemistry biophysics & molecular biology Environmental sciences & ecology Microbiology Sciences du vivant Biochimie biophysique & biologie moléculaire Sciences de l’environnement & écologie Microbiologie |
spellingShingle |
cyanobacterium Leptolyngbya Phormidium taxonomy Life sciences Biochemistry biophysics & molecular biology Environmental sciences & ecology Microbiology Sciences du vivant Biochimie biophysique & biologie moléculaire Sciences de l’environnement & écologie Microbiologie Lara, Yannick Durieu, Benoit Borderie, Fabien Stelmach Pessi, Igor Crahay, Charlotte Deblander, Victor Geelen, Nicolas Iovino, Margaud Defise, Antoine Haywood, Dail Laughinghouse Wilmotte, Annick Characterization of Leptolyngbya and Phormidium diversity in Antarctic biotopes |
topic_facet |
cyanobacterium Leptolyngbya Phormidium taxonomy Life sciences Biochemistry biophysics & molecular biology Environmental sciences & ecology Microbiology Sciences du vivant Biochimie biophysique & biologie moléculaire Sciences de l’environnement & écologie Microbiologie |
description |
Thin filamentous cyanobacteria identified by morphology as Leptolyngbya and Phormidium are common in Antarctic biotopes, ranging from microbial mats in lakes and seepages to terrestrial biofilms and crusts. Due to their morphological simplicity, a large number of species were described but the genetic basis of these taxa is largely unknown. The litterature shows that these genera are polyphyletic and that they need detailled revisions.The isolation of strains in unialgal cultures is the first step of an asssessment of the real diversity of these genera. Here we describe the molecular analysis of Antarctic Leptolyngbya antarctica, L. cf fragilis, L. glacialis and Phormidium priestleyi using sequences of different taxonomic markers, the 16S rRNA gene, the ITS and the rpoC1 gene. They appear distributed into four lineages. The phylogenetic tree supports the transfer of certain Phormidium priestleyi strains to the genus Phormidesmis. Similarly, some L. antarctica clearly belong to the new genus Nodosilinea. CCAMBIO |
author2 |
CIP - Centre d'Ingénierie des Protéines - ULiège |
format |
Conference Object |
author |
Lara, Yannick Durieu, Benoit Borderie, Fabien Stelmach Pessi, Igor Crahay, Charlotte Deblander, Victor Geelen, Nicolas Iovino, Margaud Defise, Antoine Haywood, Dail Laughinghouse Wilmotte, Annick |
author_facet |
Lara, Yannick Durieu, Benoit Borderie, Fabien Stelmach Pessi, Igor Crahay, Charlotte Deblander, Victor Geelen, Nicolas Iovino, Margaud Defise, Antoine Haywood, Dail Laughinghouse Wilmotte, Annick |
author_sort |
Lara, Yannick |
title |
Characterization of Leptolyngbya and Phormidium diversity in Antarctic biotopes |
title_short |
Characterization of Leptolyngbya and Phormidium diversity in Antarctic biotopes |
title_full |
Characterization of Leptolyngbya and Phormidium diversity in Antarctic biotopes |
title_fullStr |
Characterization of Leptolyngbya and Phormidium diversity in Antarctic biotopes |
title_full_unstemmed |
Characterization of Leptolyngbya and Phormidium diversity in Antarctic biotopes |
title_sort |
characterization of leptolyngbya and phormidium diversity in antarctic biotopes |
publishDate |
2016 |
url |
https://orbi.uliege.be/handle/2268/205888 |
genre |
Antarc* Antarctic Antarctica |
genre_facet |
Antarc* Antarctic Antarctica |
op_source |
34st Scientific Committee on Antarctic Research (SCAR) Biennal Meetings, Kuala Lumpur, Malaysia [MY], from 20-08-2016 to 30-08-2016 |
op_relation |
https://orbi.uliege.be/handle/2268/205888 info:hdl:2268/205888 |
_version_ |
1796935844739678208 |