Bacterial strains and plasmids
Bacterial strains and plasmids used in this study are listed in Supplementary Table S1. E . coli strains were cultured on Luria–Bertani (LB) medium at 37°C. The P. ananatis PA13 was cultivated at 28°C on LB medium. Antibiotics were used at the following concentrations: ampicillin, 100 µg mL–1; kanamycin, 50 µg mL–1; rifampicin, 50 µg mL–1; tetracycline, 10 µg mL–1; gentamycin, 25 µg mL–1. 5-Bromo-4-chloro-3-indoyl-b-D-galactopyranoside (X-gal) was used at 40 µg mL–1 when necessary.