Distinct composition signatures of archaeal and bacterial phylotypes in the Wanda Glacier forefield, Antarctic Peninsula

FEMS Microbiology Ecology
Igor Stelmach PessiAlexandre José Macedo

Abstract

Several studies have shown that microbial communities in Antarctic environments are highly diverse. However, considering that the Antarctic Peninsula is among the regions with the fastest warming rates, and that regional climate change has been linked to an increase in the mean rate of glacier retreat, the microbial diversity in Antarctic soil is still poorly understood. In this study, we analysed more than 40 000 sequences of the V5-V6 hypervariable region of the 16S rRNA gene obtained by 454 pyrosequencing from four soil samples from the Wanda Glacier forefield, King George Island, Antarctic Peninsula. Phylotype diversity and richness were surprisingly high, and taxonomic assignment of sequences revealed that communities are dominated by Proteobacteria, Bacteroidetes and Euryarchaeota, with a high frequency of archaeal and bacterial phylotypes unclassified at the genus level and without cultured representative strains, representing a distinct microbial community signature. Several phylotypes were related to marine microorganisms, indicating the importance of the marine environment as a source of colonizers for this recently deglaciated environment. Finally, dominant phylotypes were related to different microorganisms possessi...Continue Reading

References

Oct 20, 1994·Nature·E F DeLongR V Jovine
Oct 6, 1998·Applied and Environmental Microbiology·M F Polz, C M Cavanaugh
Jul 14, 2001·FEMS Microbiology Ecology·P López-GarcíaF Rodríguez-Valera
Sep 8, 2001·Science·D G VaughanR Mulvaney
Mar 23, 2004·Nucleic Acids Research·Robert C Edgar
Dec 14, 2004·Microbiology and Molecular Biology Reviews : MMBR·Patrick D Schloss, Jo Handelsman
Sep 24, 2005·Nature·Martin KönnekeDavid A Stahl
Feb 24, 2006·Trends in Microbiology·Eli O van der Sluis, Arnold J M Driessen
Mar 7, 2006·Applied and Environmental Microbiology·Peter H Janssen
May 23, 2006·Nature Reviews. Microbiology·Ricardo Cavicchioli
Aug 2, 2006·Proceedings of the National Academy of Sciences of the United States of America·Mitchell L SoginGerhard J Herndl
Dec 23, 2006·Microbial Ecology·Diana R NemergutSteven K Schmidt
Jun 26, 2007·Applied and Environmental Microbiology·Qiong WangJames R Cole
Nov 29, 2007·The ISME Journal·Luiz F W RoeschEric W Triplett
Feb 16, 2008·Nature Reviews. Microbiology·Céline Brochier-ArmanetPatrick Forterre
Apr 10, 2008·International Journal of Systematic and Evolutionary Microbiology·Masayuki MiyazakiKoki Horikoshi
Apr 2, 2010·Molecular Ecology·Ursel M E SchütteLarry J Forney
Apr 13, 2010·Nature Methods·J Gregory CaporasoRob Knight
Feb 22, 2011·International Journal of Systematic and Evolutionary Microbiology·Marina G KalyuzhnayaLudmila Chistoserdova
Dec 14, 2011·Microbial Ecology·Anita ZumstegBeat Frey
Jun 22, 2012·PloS One·UNKNOWN Jumpstart Consortium Human Microbiome Project Data Generation Working Group
Jul 14, 2012·Microbes and Environments·Igor Stelmach PessiAlexandre José Macedo
Mar 14, 2013·FEMS Microbiology Ecology·Felizitas Bajerski, Dirk Wagner
Dec 1, 2011·Environmental Microbiology Reports·Laura Alonso-SáezStefan Bertilsson
Aug 3, 2013·Science·Jessica L BloisSeth Finnegan

❮ Previous
Next ❯

Related Concepts

Related Feeds

Archaeogenetics

Recent advances in genomic sequencing has led to the discovery of new strains of Archaea and shed light on their evolutionary history. Discover the latest research on Archaeogenetics here.