FIG 4.

Colonization profiles of V. fischeri strains. (A) Light organ colonized in each crypt with either YFP-labeled FQ-A001 (green) or CFP-labeled ES114 (blue) cells. The distinct crypt spaces, which are indicated by the dashed lines, are labeled I, II, or III. (B) Frequency of crypts with each strain type. Each bar represents the results from a single trial, in which at least 100 crypt spaces were scored. (C) Coaggregate of YFP-labeled FQ-A001 (green) and CFP-labeled ES114 (blue) cells associated with light organ pore. Host tissue is stained with CellTracker orange (red). The image was generated as the maximum projection of a z-stack.