Evidencia de transferencia horizontal de genes de resistencia a antibióticos provenientes de bacterias ambientales

It is often thought that the wide distribution of bacterial antibiotic resistance is the result of widespread use of anti-microbial therapy in medical and agricultural fields. However, antibiotic resistance genes are present in bacteria from remote areas and it is likely that the environment was the natural scenario of the origin and evolution for antibiotic genes and predates the antibiotic therapy era. This study provides evidence of horizontal transference of antibiotic resistance genes from environmental bacteria to E. coli k12.