Analysis of the microbial diversity and structure of the bacteria associated to P. australis (common reed)in a hypersaline environment.

Rhizobacterial communities associated to Phragmites australis (Cav.) Trin. ex in a hypersaline pond close to Wuliangsuhai lake (Inner Mongolia – China) were investigated and compared with the microbial communities in the bulk sediments of the same pond. Microbiological analyses have been done by Automated Ribosomal Intergenic Spacer Analysis (ARISA) and partial 16S rRNA gene 454 pyrosequencing. The electrical conductivity seemed to be the major factor in shaping the microbial communities structure. However, richness diversity resulted to be higher in the rhizosphere samples than in the bulk sediment. Halanaerobiales was the most abundant taxon found in the different samples and Desulphoromonas was observed to be more present in the rhizosphere rather than in bulk sediment.