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Osmoregulation of ompS1 in Salmonella hns. (A) Expression in S. enterica serovar Typhi (STY) and in S. enterica serovar Typhimurium (STM) wild-type strains and in their isogenic hns derivatives, as assessed with the bp −310 lacZ reporter fusion, at low (NB) and high (NB + 300 mM NaCl) osmolarities. (B) Expression in S. enterica serovar Typhi hns99 of ompS1-lacZ fusions of different lengths (as shown in Fig. 1) at low and high osmolarities. Error bars indicate standard deviations.
