TABLE 1.

Bacterial strains and plasmids used in this study

Strain or plasmidRelevant characteristicsSource or reference
Strains
    S. enterica serovar Typhimurium 14028Wild typeATCC 14028
    S. enterica serovar Typhimurium CS132Isogenic to 14028 containing luxS::MudJ41
    S. enterica serovar Typhimurium SS007Isogenic to 14028 containing luxS::T-POP35
    V. harveyi BB170Isogenic to wild-type BB120 containing luxN::Tn5Kn3
Plasmids
    pCS26Low-copy-number luxCDABE reporter vectorC. Southward
    pAB12pCS26 containing luxS promoterThis study
    pAB13pCS26 containing pfs promoterThis study
    pBAD18Arabinose-inducible expression vectorInvitrogen; 21
    pMS234pBAD18 containing luxS35