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. 2016 Oct 10;7:1614. doi: 10.3389/fmicb.2016.01614

FIGURE 3.

FIGURE 3

Transmission electron micrographs of S. Typhimurium SL1344 and ΔyqiC. Representative transmission electron micrographs after negative staining of at least four different fields of view from each bacterial strain reveal the morphology of S. Typhimurium SL1344 (A,B), ΔyqiC (C,D), and ΔyqiC′ (E,F). Numerous long flagella (arrows) were observed on the surfaces of S. Typhimurium SL1344 [magnification: (A) 30,000×; (B) 80,000×]. Type-1 fimbriae (arrowheads) and defective flagella (asterisks) were observed in S. Typhimurium ΔyqiC [magnification: (C) 40,000×; (D) 80,000×]. Similar to S. Typhimurium SL1344, numerous long flagella without fimbriae were observed in S. Typhimurium ΔyqiC′ [magnification: (E) 10,000×; (F): 80,000×].