FIG. 1.

Stability of pEVS126 (unshaded bars) and pES213Kn (shaded bars) in V. fischeri after growth in nonselective LBS medium (A) or during squid colonization without kanamycin selection (B). Panel B includes the percent plasmid retention in cells from the inoculum that squid were exposed to and in cells recovered from colonized squid. Error bars (some too small to visualize) indicate standard errors; n = 3 (cultures) in panel A, and n = 8 (squid) at the 24-h, 48-h, and 72-h time points in panel B.