highly significantP < 0.001
At 12 h and 15 h, the difference in the number of M5 cells between the wild-type and Δ hylB groups reached a highly significant difference ( P < 0.001).
At 12 h and 15 h, the difference in the number of M5 cells between the wild-type and Δ hylB groups reached a highly significant difference ( P < 0.001).