Figure 5.

(A) Growth curve of the phage–bacteria coculture. Thirty hours after phage addition, the OD₆₀₀ of the phage and bacteria coculture began to increase. (B) Adsorption rate of phage onto three strains. This result indicates that EFap02 can adsorb EFa02 and EFa02R::gtr2 but not EFa02R (**** p < 0.0001). (C) The mutation site of the glycosyltransferase Group 2 gene in EFa02R; the mutant site is G209T, which results in the amino acid change from serine to isoleucine. (D) EOP assay indicates that EFap02 can infect EFa02 and EFa02R::gtr2 but not EFa02R.