Table 3.

Organ colonization numbers of S. Typhimurium strains JSG210 (WT) and RLK6 (gudT-deleted mutant) in the livers and spleens of infected mice. Numbers indicate ranges of CFU per organ among four mice inoculated with each strain. Statistically significant differences between WT and RLK6 were indicated for both organs by Student's t-test analysis (p < 0.05, n = 4). The second experiment (also with four mice infected with each strain) showed similar results. Wilcoxon rank-sum statistical analysis using each of the latter four data points indicated differences were significant between the two strains for both organs at p ≤ 0.05.

strain	CFU/liver (×106 cells)	CFU/spleen (×106 cells)
WT	1.2–2.7	1.5–2.6
RLK6	0.4–1.0	0.1–1.5