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. 2024 Jul 20;15:6123. doi: 10.1038/s41467-024-50331-y

Fig. 2. Morphology of the rough and smooth colonies of the representative S. Typhimurium isolates in this study.

Fig. 2

In this study, the rough colony strain SF175, smooth colony strain 2015114, control strain ATCC 14028, and mutants SF175-ΔcsgD and SF175-csgD with -44 T > G were selected as representatives to observe the colony morphology. A, B Colony morphology of the representative S. Typhimurium isolates grown for seven consecutive days on Luria-Bertani agar containing Congo red and Coomassie blue without salt at 28 °C and 37 °C. C, D Scanning electron micrographs of the representative S. Typhimurium isolates cultured for 24 h at 28 °C and 37 °C. Representative scanning electron micrograph for one replicate. Scale bar, 5 mm. Source data are provided as a Source Data file.