No full text
Poster (Scientific congresses and symposiums)
Characterization of Leptolyngbya and Phormidium diversity in Antarctic biotopes
Lara, Yannick; Durieu, Benoit; Borderie, Fabien et al.
201634st Scientific Committee on Antarctic Research (SCAR) Biennal Meetings
 

Files


Full Text
No document available.

Send to



Details



Keywords :
cyanobacterium; Leptolyngbya; Phormidium; taxonomy
Abstract :
[en] 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.
Research center :
CIP - Centre d'Ingénierie des Protéines - ULiège
Disciplines :
Biochemistry, biophysics & molecular biology
Environmental sciences & ecology
Microbiology
Author, co-author :
Lara, Yannick  ;  Université de Liège > Département des sciences de la vie > Centre d'ingénierie des protéines
Durieu, Benoit ;  Université de Liège - ULiège > Form. doct. sc. (biol. orga. & écol. - paysage)
Borderie, Fabien;  Université de Bourgogne Franche-Comté
Stelmach Pessi, Igor ;  Université de Liège - ULiège > Form. doct. sc. (biol. orga. & écol. - Bologne)
Crahay, Charlotte ;  Université de Liège - ULiège > Département des Sciences de la Vie > Centre d'Ingénierie des Protéines
Deblander, Victor
Geelen, Nicolas
Iovino, Margaud ;  Université de Liège - ULiège > Master bioch. & biol. mol. & cel., à fin.
Defise, Antoine ;  Université de Liège - ULiège > Master bioch. & biol. mol. & cel., fin. appr. (ex 2e ma.)
Haywood, Dail Laughinghouse;  University of Florida
Wilmotte, Annick  ;  Université de Liège > Département des sciences de la vie > Physiologie et génétique bactériennes
Language :
English
Title :
Characterization of Leptolyngbya and Phormidium diversity in Antarctic biotopes
Publication date :
August 2016
Number of pages :
A3
Event name :
34st Scientific Committee on Antarctic Research (SCAR) Biennal Meetings
Event organizer :
The Scientific Commitee on Antarctic Research (SCAR)
Event place :
Kuala Lumpur, Malaysia
Event date :
from 20-08-2016 to 30-08-2016
Audience :
International
Name of the research project :
CCAMBIO
Funders :
BELSPO - SPP Politique scientifique - Service Public Fédéral de Programmation Politique scientifique
F.R.S.-FNRS - Fonds de la Recherche Scientifique [BE]
Available on ORBi :
since 25 January 2017

Statistics


Number of views
145 (11 by ULiège)
Number of downloads
0 (0 by ULiège)

Bibliography


Similar publications



Contact ORBi