Recombination activity of a distinctive integron-gene cassette system associated with Pseudomonas stutzeri populations in soil.

ABSTRACT: Class 1 integrons have strongly influenced the evolution of multiple antibiotic resistance. Diverse integrons have recently been detected directly in a range of natural environments. In order to characterize the properties of these environmental integrons, we sought to isolate organisms containing integrons from soils, which resulted in the isolation of Pseudomonas stutzeri strain Q. Further isolation efforts targeted at this species resulted in recovery of two other strains (P and BAM). 16S rRNA sequences and chromosome mapping showed that these three strains are very closely related clonal variants in a single genomovar of P. stutzeri. Only strains Q and BAM were found to contain an integron and an associated gene cassette array. The intI and attI components of these strains showed 99 an

SUBMITTER: Holmes AJ 

PROVIDER: S-EPMC142810 | biostudies-literature | 2003 Feb

REPOSITORIES: biostudies-literature