Fig 8.

Expression of E. coli sdiA during growth in shaking or standing liquid cultures or in biofilms. Expression of the sdiA-tnpR-lacZY fusion in E. coli K-12 (JNS3212) is shown. Miller units after 9 h of growth in standing or shaking liquid, or 16 h of growth in biofilm, are indicated by bars for 1 μM AHL (black), 0.1% ethyl acetate (EA) (white), 500 μM indole (dark gray), and 0.1% dimethylformamide (DMF) (light gray). All data points are the averages for three biological replicates, and error bars indicate SEM.