Poster (Scientific congresses and symposiums)
A next-generation approach to assess the cyanobacterial diversity and biogeography in the High Arctic (Svalbard)
Laughinghouse, Haywood Dail; Stelmach Pessi, Igor; Velazquez, David et al.
201515th International Symposium on Phototrophic Prokaryotes
 

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Keywords :
Arctic; cyanobacteria; Biodiversity; Biogeography
Abstract :
[en] Polar ecosystems are extremely sensitive to global climate changes and human activities. Cyanobacteria are key photosynthetic organisms in these latitudes, due to their roles in soil aggregation, nitrogen fixation, carbon cycles, and secondary metabolite production, among others. Previous works indicate that different cyanobacterial taxa/communities have different impacts on the environment, in both biogeochemical cycles and bioactive compound productions. Furthermore, the presence of biogeographical patterns in microorganisms, as found in macroorganisms, is an ongoing debate. In this study, during the 2013 MicroFun expedition, we sampled 72 locations around Svalbard including diverse biotopes such as glacial forefields, tundra soils, hot springs, soil crusts, microbial mats, wet walls, cryoconites, plankton and periphyton, in order to (1) assess the biodiversity of cyanobacteria around Svalbard, (2) verify the existence of biogeographical trends around the archipelago, and (3) compare these data with other polar (cold) areas, especially Antarctica. We used a pyrosequencing approach targeting cyanobacteria-specific 16S rRNA gene sequences to deeply study the cyanobacterial communities.
Research center :
CIP - Centre d'Ingénierie des Protéines - ULiège
Disciplines :
Microbiology
Environmental sciences & ecology
Author, co-author :
Laughinghouse, Haywood Dail
Stelmach Pessi, Igor ;  Université de Liège > Centre d'ingénierie des protéines
Velazquez, David
Wilmotte, Annick  ;  Université de Liège > Département des sciences de la vie > Physiologie et génétique bactériennes
Language :
English
Title :
A next-generation approach to assess the cyanobacterial diversity and biogeography in the High Arctic (Svalbard)
Publication date :
03 August 2015
Number of pages :
A
Event name :
15th International Symposium on Phototrophic Prokaryotes
Event organizer :
University of Tubingen
Event place :
Tubingen, Germany
Event date :
2 au 7 aout 2015
Audience :
International
Name of the research project :
BIPOLES, PYROCYANO
Funders :
F.R.S.-FNRS - Fonds de la Recherche Scientifique [BE]
Available on ORBi :
since 24 August 2015

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