Molecular Characterization of Integrons in Acinetobacter baumannii: Description of a Hybrid Class 2 Integron
AUTOR(ES)
Ploy, Marie-Cécile
FONTE
American Society for Microbiology
RESUMO
Twenty Acinetobacter baumannii strains resistant to various antibiotics were analyzed for integron content and sequences of the amplification products. Sixteen clinical isolates had a class 1 integron, 2 contained an additional class 1 or class 2 integron, but no class 3 integron was detected. Thirteen strains had integrons with a single cassette: aac(3)-Ia (9 strains), ant(2")-Ia (2 strains), or aac(6′)-Ib (2 strains); 1 had aac(6′)-Ib and oxa20 cassettes and an unknown gene; and 1 had an integron containing ant(2")-Ia and an oxa3 cassette truncated by IS6100. The remaining strains harbored class 1 integrons with gene cassettes previously found in Enterobacteriaceae. One integron had a hybrid structure composed of intI2 and the 3′ conserved segment of class 1 integrons. These data indicate that integrons play a major role in multidrug resistance in Acinetobacter.
ACESSO AO ARTIGO
http://www.pubmedcentral.nih.gov/articlerender.fcgi?artid=90135Documentos Relacionados
- An overview of Acinetobacter baumannii: deciphering this amazing pathogen
- Molecular Characterization of Integrons in Epidemiologically Unrelated Clinical Isolates of Acinetobacter baumannii from Italian Hospitals Reveals a Limited Diversity of Gene Cassette Arrays
- Risk Factors for Acquisition of Imipenem-Resistant Acinetobacter baumannii: a Case-Control Study
- Risk Factors for Acquisition of Imipenem-Resistant Acinetobacter baumannii: a Case-Control Study
- Outbreak of resistant Acinetobacter baumannii: measures and proposal for prevention and control