FIG 6 .

Log₁₀ abundance of bacteria retained in the host at 1 h (first row) and 5 h (second and third rows) after the exposure of axenic (white bars) or gnotobiotic (hatched bars) flies to low-density A. tropicalis in microbial fate experiments. The three columns correspond to three different replicate experiments performed on different days. Replicate experiment 1 only used axenic treatment, whereas the other replicate experiments used both axenic and gnotobiotic treatments. Each histogram is data from a single vial with 50 flies (LA, low axenic; LG, low gnotobiotic). Vertical dashed and dotted lines are the mean and median, respectively, of log₁₀ abundance of bacteria retained in the host body. The coefficient of variation (C.V.) for each vial was calculated by using the untransformed abundance of bacteria retained.