Susceptibility testing of sulfonamides in the presence of trimethoprim
Isolation
Derived from existing strain
Biosafety Level
1
Biosafety classification is based on U.S. Public Health Service Guidelines, it is the responsibility of the customer to ensure that their facilities comply with biosafety regulations for their own country.
Product Format
freeze-dried
Storage Conditions
Frozen: -80°C or colder Freeze-Dried: 2°C to 8°C Live Culture: See Propagation Section
Preceptrol®
no
Type Strain
no
Antibiotic Resistance
Resistant to trimethoprim and streptomycin (R factor 483) but not sulfonamides
Medium
ATCC® Medium 3: Nutrient agar or nutrient broth
Growth Conditions
Temperature: 37°C
Atmosphere: Aerobic
Name of Depositor
Wellcome Research Laboratories
References
Hedges RW, et al. R Factors conferring resistance to trimethoprim but not solphonamides. J. Gen. Microbiol. 73: 573-575, 1972. PubMed: 4571517
Fleming MP. Trimethoprim-resistance and its transferability in E. coli isolated from calves treated with trimethoprim-sulphadiazine: a two year study. J. Hyg. 71: 669-677, 1973.
Derived by mating a K-12 strain with an R-factor-carrying Escherichia coli
