Fig. 1From: The role of TolA, TolB, and TolR in cell morphology, OMVs production, and virulence of Salmonella CholeraesuisConstruction and confirmation of the tolA, tolB, and tolR knockout mutants. a Schematic diagram for the generation of the tolA, tolB, and tolR mutants. b The tolA, tolB, and tolR mutants were verified through combined PCR. PCR confirmation of the deletions using two primer sets of flanking regions (A/D) and internal regions (E/F)Back to article page