Table 1

Bacterial strains used

Species and strainDescriptionSource and/or reference(s)a
E. coli BW25113wt3
E. coli BW25113 cyaA::kanLacks adenylate cyclase gene3, 48
E. coli BW25113 cpd::kanLacks cAMP-phosphodiesterase gene3, 22
E. coli BW25113 crp::kanLacks cAMP receptor protein3, 14
E. coli BW25113 sdiA::kanLacks luxR homologue (receptor for AHLs and indole)3, 30, 43
E. coli BW25113 tnaA::kanLacks tryptophanase3, 23
E. coli MG1655wtD. A. Siegele (6)
E. coli MG1655 purHLacks IMP cyclohydrolase (purine synthesis)F. R. Blattner (25)
E. coli MG1655 purDLacks phosphoribosyltransferase (purine synthesis)F. R. Blattner (25)
E. coli ZK126wtD. A. Siegele (1)
Pseudomonas aeruginosa PAO1wtV. Deretic (45)
P. aeruginosa PDO100 ΔrhlI::Tn501Lacks AHL synthase for C4-HSLE. P. Greenberg (50)
P. aeruginosa PAO-MW1 ΔrhlI ΔlasILacks AHL synthases for C4-HSL and 3-o-C12-HSLE. P. Greenberg (50)
  • a E. coli BW25113 strains were obtained from the Genome Analysis Project in Japan.