Article
Induction of the cysteine regulon of Salmonella typhimurium in LB medium affects the response of cysB mutants to mecillinam.
Current microbiology - 1 Jan 2000
Antón D N
Abstract excerpt
Rapid growth of Salmonella typhimurium LT2 in rich LB-broth caused the induction of the cysteine regulon when the culture reached an optical density at 650 nm of 1.5. Addition of 0.05 mM L-cystine to LB-broth abolished induction, while 0.025 mM L-cystine delayed it for a doubling time (30 min). Induction did not occur when lack of oxygen or a temperature shift to 19 degrees C slowed down growth in LB-broth....
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