Fig. 7.

Taxonomic shifts from acute TCDD exposure. 16S sequencing was performed following a TCDD exposure time course, and the Phylum level taxonomy was summarized by treatment as a barchart with low abundance taxa filtered out (A). Bacterial enumeration using MacConkey agar with the time point before exposure followed by 3 time points, 4 h after exposure for (B), T0 = Day1—0 h, T1 = Day 1—4 h, T2 = Day2—0 h, T3 = Day 2—4 h,*p ≤ 0.05. N = 4.