Antarctic Microbial BIOdiversity : the importance of geographical versus ecological factors

Antarctica is a prime region to test whether microbes have a biogeography and to study their metacommunity dynamics, because (i) it is isolated from the other continents, (ii) its extreme environmental conditions allow microorganisms to dominate its ecosystems, and (iii) lacustrine and terrestrial h...

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Bibliographic Details
Main Authors: Obbels, Dagmar, De Carvalho Maalouf, Pedro, De Wever, Aaike, Peeters, Karolien, Willems, Anne, Verleyen, Elie, Vyverman, Wim, Wilmotte, Annick
Other Authors: CIP - Centre d'Ingénierie des Protéines - ULiège
Format: Conference Object
Language:English
Published: 2012
Subjects:
microbial diversity
Antarctic
Biogeography
cyanobacteria
Life sciences
Environmental sciences & ecology
Microbiology
Sciences du vivant
Sciences de l’environnement & écologie
Microbiologie
Antarc*
Antarctic Science
Antarctica
Antarctique*
Online Access:https://orbi.uliege.be/handle/2268/142087
https://orbi.uliege.be/bitstream/2268/142087/1/abstractAMBIOPortlandfinal.doc
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Summary:Antarctica is a prime region to test whether microbes have a biogeography and to study their metacommunity dynamics, because (i) it is isolated from the other continents, (ii) its extreme environmental conditions allow microorganisms to dominate its ecosystems, and (iii) lacustrine and terrestrial habitats occur isolated in a matrix of ice and ocean. We compiled a large set of samples from benthic microbial mats from Antarctic lakes in different ice-free regions and used a polyphasic approach to study their microbial biodiversity by combining morphological characterization of diatoms with molecular techniques such as Denaturing Gradient Gel Electrophoresis (green algae and cyanobacteria), 454 pyrosequencing and cultivation (prokaryotes). AMBIO

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