Fig. 2From: Construction of Lactobacillus casei ghosts by Holin-mediated inactivation and the potential as a safe and effective vehicle for the delivery of DNA vaccinesGrowth and lysis curves of pPG-2-hocb/L. casei 393 and pPG-2/L. casei 393 following induction. pPG-2-hocb/L. casei 393 and pPG-2/L. casei 393 were cultured in MRS medium at 37 °C. Expression of the lysis gene hocb was induced with xylose. The optical density (OD600) of the culture was monitored at the indicated time points for a period of 88 h after the addition of xylose. OD600 values are shown in the graph. n = 3; Error bars indicate ± SDBack to article page