Microbial diversity in hypersaline wastewater : the example of tanneries - INRAE - Institut national de recherche pour l’agriculture, l’alimentation et l’environnement
Article Dans Une Revue Extremophiles Année : 2006

Microbial diversity in hypersaline wastewater : the example of tanneries

Résumé

In contrast to conventional wastewater treatment plants and saline environments, little is known regarding the microbial diversity of hypersaline wastewater. In this study, the microbial communities of a hypersaline tannery effluent, and those of three treatment systems operating with the tannery effluent, were investigated using 16S rDNA phylogenetic markers. The comparative analysis of 377 bacterial sequences revealed the high diversity of this type of hypersaline environment, clustering within 193 phylotypes (ge 97% similarity) and covering 14 of the 52 divisions of the bacterial domain, i.e. Proteobacteria, Bacteroidetes, Firmicutes, Actinobacteria, Chlorobi, Planctomycetes, Spirochaetes, Synergistes, Chloroflexi, Thermotogae, Verrucomicrobia, OP3, OP11 and TM7. Most of the phylotypes were related to halophilic and pollutant-degrading bacteria. Using statistical analysis, the diversity of this type of environment was compared to that of other environmental samples selected on the basis of their salinity, oxygen content and organic load.

Dates et versions

hal-02661560 , version 1 (30-05-2020)

Identifiants

Citer

Olivier Lefebvre, N. Vasudevan, K. Thanasekaran, Renatto Moletta, Jean-Jacques Godon. Microbial diversity in hypersaline wastewater : the example of tanneries. Extremophiles, 2006, 10 (6), pp.505-513. ⟨10.1007/s00792-006-0524-1⟩. ⟨hal-02661560⟩
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