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RNase Y depletion decreases attachment to polystyrene surface and biofilm formation. C. perfringens was grown with or without lactose for 24 h. Cell adhesion activity was calculated by measuring the OD600 of adherent or planktonic cells. Asterisks show statistically significant differences with respect to HN13 (P < 0.05). P values were calculated using a two-tailed unpaired t test with Welch's correction.
