Article (Scientific journals)
Biogeography of terrestrial cyanobacteria from Antarctic ice-free areas
Namsaraev, Zorigto; Mano, Marie-José; Fernandez Carazo, Rafael et al.
2010In Annals of Glaciology, 51 (56), p. 171-177
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Keywords :
cyanobacteria; Antarctica; biogeography; terretrial
Abstract :
[en] Cyanobacteria inhabit the Antarctic continent and have even been observed in the most southerly ice-free areas of Antarctica (86–878 S). The highest molecular diversity of cyanobacterial communities was found in the areas located between 708 S and 808 S. Further south and further north from this zone, the diversity abruptly decreased. Seventy-nine per cent (33 of 42 operational taxonomic units) of Antarctic terrestrial cyanobacteria have a cosmopolitan distribution. Analysis of the sampling efforts shows that only three regions (southern Victoria Land, the Sør Rondane Mountains and Alexander Island) have been particularly well studied, while other areas did not receive enough attention. Although cyanobacteria possess a capacity for long-range transport, regional populations in Antarctic ice-free areas seem to exist. The cyanobacterial communities of the three most intensively studied regions, separated from each other by a distance of 3000–3400 km, had a low degree of similarity with each other. Further development of microbial biogeography demands a standardized approach. For this purpose, as a minimal standard, we suggest using the sequence of cyanobacterial 16S rRNA gene between Escherichia coli positions 405–780.
Research center :
CIP - Centre d'Ingénierie des Protéines - ULiège
Disciplines :
Environmental sciences & ecology
Microbiology
Author, co-author :
Namsaraev, Zorigto ;  Université de Liège - ULiège > Centre d'ingénierie des protéines
Mano, Marie-José ;  Université de Liège - ULiège > Département des sciences de la vie > Enzymologie
Fernandez Carazo, Rafael ;  Université de Liège - ULiège > Doct. sc. (bioch., biol. mol.&cell., bioinf.&mod.-Bologne)
Wilmotte, Annick  ;  Université de Liège - ULiège > Département des sciences de la vie > Physiologie et génétique bactériennes
Language :
English
Title :
Biogeography of terrestrial cyanobacteria from Antarctic ice-free areas
Alternative titles :
[fr] Biogéographie des cyanobactéries terrestres des zones déglacées en Antarctique
Publication date :
2010
Journal title :
Annals of Glaciology
ISSN :
0260-3055
eISSN :
1727-5644
Publisher :
International Glaciological Society, Cambridge, United Kingdom
Volume :
51
Issue :
56
Pages :
171-177
Peer reviewed :
Peer Reviewed verified by ORBi
Name of the research project :
BIPOLES
Funders :
F.R.S.-FNRS - Fonds de la Recherche Scientifique [BE]
Available on ORBi :
since 05 July 2011

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