Fig. 2

Bacterial preference of N2 and CB4856 isolates depends on the bacteria and time of observation. A Two-choice bacterial preference assay. L4 worms were washed and then placed at the midline of test plates containing two bacterial lawns, E. coli OP50 or pathogen. At 1-hr and 24-hr timepoints the percentage of worms on each lawn was calculated. B-E Percentage of N2 and CB4856 animals on a bacterial lawn when given a choice of E. coli OP50 or. S. epidermidis (B), S. aureus (C), P. rettgeri (D) or P. aeruginosa (E). In each experiment, 20 worms were placed on NGM plates and the number of worms on the bacterial lawn was recorded at regular intervals. Data presented as mean and standard deviation of five independent experiments. ***, p < 0.001; NS, p > 0.05