Integron diversity in bacterial communities of freshwater sediments at different contamination levels.

摘要: Integrons, genetic elements known to be involved in the adaptation of pathogenic bacteria, were first discovered clinical setting. However, they are ancient structures found various environments. When integrons have a low diversity, with three integrases and gene cassettes essentially encoding antibiotic resistance, natural environments, show greater both integrases. Although large number from environmental samples been identified, integrase diversity remains poorly documented, has not yet investigated freshwater The work presented here explores sediments environment, emphasis on Integron bacterial communities was analyzed at sampling stations different contamination levels contaminant types. A total 684 sequences obtained grouped into 322 previously undescribed integron classes, revealing wider than that expected non-clinical community did fully explain suggesting could influenced by level, type influence cassette diversity. These results provide further arguments for involvement response contaminants