K. Harjai et al., PLASMID DISTRIBUTION IN ESCHERICHIA-COLI URINARY ISOLATES WITH SPECIAL REFERENCE TO AEROBACTIN AND COLICIN PRODUCTION, World journal of microbiology & biotechnology, 12(6), 1996, pp. 585-588
Plasmids were detected in 31 out of 35 strains of Escherichia coli iso
lated from unclassified cases of urinary tract infection at a median v
alue of 1.88 plasmid bands per isolate. The isolates showed an associa
tion of aerobactin and colicin production with the distribution of pla
smid bands having a median value of 2.33 and 1.72 (plasmid bands per i
solate) in aerobactin-positive and aerobadin-negative strains respecti
vely. For colicin producers, the median plasmid bands per isolate was
3.66 compared to 1.80 for colicin-negative strains.