FIG 9.
qRT-PCT of intestinal catfish cytokines induced by E. ictaluri LPS. (A to C) Intestinal response to E. ictaluri O-PS mutants. The intestinal loops were inoculated with 107 CFU of each mutant. (D to F) Intestinal response to purified E. ictaluri LPS. The intestinal loops were inoculated with 100 μg of LPS from each mutant. The experiment was repeated 2 times independently. The total of animals used per group was 6. The error bars indicate the standard deviation. *, significant difference versus wild type.