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© Research
Publication : Research in Microbiology

Taxonomic and functional prokaryote diversity in mildly arsenic-contaminated sediments

Team: Evolutionary Biology of the Microbial Cell
Member: Simonetta Gribaldo
Scientific Fields
Diseases
Organisms
Applications
Technique

Published in Research in Microbiology - 01 Nov 2011

David Halter, Audrey Cordi, Simonetta Gribaldo, Sébastien Gallien, Florence Goulhen-Chollet, Audrey Heinrich-Salmeron, Christine Carapito, Christophe Pagnout, Didier Montaut, Fabienne Seby, Alain van Dorsselaer, Christine Schaeffer, Philippe Bertin, Pascale Bauda, Florence Arsène-Ploetze

Link to Pubmed [PMID] – 21704701

Link to HAL – pasteur-02507557

Link to DOI – 10.1016/j.resmic.2011.06.001

Research in Microbiology, 2011, 162 (9), pp.877-887. ⟨10.1016/j.resmic.2011.06.001⟩

Arsenic-resistant prokaryote diversity is far from being exhaustively explored. In this study, the arsenic-adapted prokaryotic community present in a moderately arsenic-contaminated site near Sainte-Marie-aux-Mines (France) was characterized, using metaproteomic and 16S rRNA-encoding gene amplification. High prokaryotic diversity was observed, with a majority of Proteobacteria, Acidobacteria and Bacter-oidetes, and a large archaeal community comprising Euryarchaeaota and Thaumarchaeota. Metaproteomic analysis revealed that Proteobacteria, Planctomycetes and Cyanobacteria are among the active bacteria in this ecosystem. Taken together, these results highlight the unsuspected high diversity of the arsenic-adapted prokaryotic community, with some phyla never having been described in highly arsenic-exposed sites.