Swarming motility of Salmonella WT and isogenic mutants. A Swarming motility performed in LB 0.5% agar after 12, 24, and 48 h of incubation. Motility halos of WT, ΔvisP, visP + , ΔwzzST, wzzST + , ΔvisP/wzzST, and ΔvisP/wzzST visP + . ns, non-significant; *p < 0.05; **p < 0.01; ***p < 0.001; ****p < 0.0001. B Swarming motility perfomed in LB 0.5% agar plus 2% NaCl after 12, 24, and 48 h of incubation. Motility halos of WT, ΔvisP, visP + , ΔwzzST, wzzST + , ΔvisP/wzzST, and ΔvisP/wzzST/visP + . ns, non-significant; *p < 0.05; **p < 0.01; ****p < 0.0001. C qRT-PCR of flgM in LB 1% and 2% NaCl. Relative fold expression of flgM in WT, ΔvisP, visP + , ΔwzzST, wzzST + , and ΔvisP/wzzST strains. ns, non-significant; ****p < 0.0001