Detection and Analysis of Integron and Metallo-β-Lactamase in Stenotrophomonas maltophilia
Yinghong Cui
Abstract
Yinghong Cui
Abstract
OBJECTIVE To study the existence of integron and metallo-β-lactamase in Stenotrophomonas maltophilia in our hospital.METHODS The antibiotic susceptibility was tested by K-B method.The genomic DNA and their plasmids were extracted.The integron and metallo-β-lactamase gene were amplified by polymerase chain reaction(PCR).RESULTS L1 and L2 genes were amplified in chromosomes and plasmids.Integrons Ⅰ and Ⅱ were detected in genomic DNA.CONCLUSIONS Existence of metallo-β-lactamase is one of reasons of multi-drug resistance in S.maltophilia.S.maltophilia can receive integrons and gain its multi-drug resistance from other strains.
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OBJECTIVE To study the existence of integron and metallo-β-lactamase in Stenotrophomonas maltophilia in our hospital.METHODS The antibiotic susceptibility was tested by K-B method.The genomic DNA and their plasmids were extracted.The integron and metallo-β-lactamase gene were amplified by polymerase chain reaction(PCR).RESULTS L1 and L2 genes were amplified in chromosomes and plasmids.Integrons Ⅰ and Ⅱ were detected in genomic DNA.CONCLUSIONS Existence of metallo-β-lactamase is one of reasons of multi-drug resistance in S.maltophilia.S.maltophilia can receive integrons and gain its multi-drug resistance from other strains.
Key concepts: Integron, Stenotrophomonas maltophilia, Plasmid, Polymerase chain reaction, genomic DNA, Microbiology, Biology, Gene