Fig. 3

LysSSE1, HolSSE1 and antibiotics were combined to remove planktonic a S. dysentery 1.1869, b S. flexneri 1.1868, and c S. flexneri 1.10599. Gray represents negative control without lytic proteins and antibiotics, orange represents LysSSE1 and antibiotics combination, green represents HolSSE1 and antibiotic combination, and blue represents antibiotic alone. Groups 1, 2, 3, 4, 5, 6, 7, 8, and 9 correspond to erythromycin, gentamicin sulphate, chloramphenicol, cefotaxime, cefoxitin, cephalothin, cardelmycin, tetracycline hydrochloride, and polymyxin b sulphate, respectively. The concentration of the antibiotics used was 1/2 MIC. Error bars represent standard deviation of three biological replicates. The letters a, b, c, d, e, and α, β, γ, δ indicate significant results; the significance level was set at p < 0.05