Total of 100 strains of alctose-fermenting coliform bacteria isolated from the Jeonju-chun Creek in July 1979 were examined for susceptibility to 5 drugs, and transferability and transfer frequency of R palsmids in E. coli.
Of 100 isolates, 23 stains were classified as E. coli, .57 strains as C. freundii, and 20 strains as Klebsiella-Enterobactor group by APHA Methods applied.
A majority of isolates were resistant to drugs, singly or in combination, and the multiple resistant strains represented 74%. The most commonly found resistant drug was SM (84%), f2llowed by TC (7400. RP(26%), and GM (10%.) in order. Where as all strains were susceptibility to NA. Resistant pattern of isolates showed multiple drug resistance; particularly SM TC and SM TC RP patterns were frequently appearance.
We could observed the transferability of E. coli R palsmds in mixed culture: only R (TC) palsmid was transferred to E. coli ML 1410 and E coli K-12 with 8.7X10 1.5X10-4%1 and 6,5X10 42. 1X1-6/06 of transfer frequency, at 37°C for 18 hours incubation, respectively.
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