Fig. 2From: Heterologous expression of AHL lactonase AiiK by Lactobacillus casei MCJΔ1 with great quorum quenching ability against Aeromonas hydrophila AH-1 and AH-4a AHL lactonase activity of LcAiiK detected by HPLC (LcCW cells were used as negative control, purified AiiK was used as positive control). b AHL lactonase activity of LcAiiK detected by violacein generation of C. violaceum CV026 (LcCW cells were used as negative control, purified AiiK was used as positive control). c Localization assays of AiiK in LcAiiK, PC represents positive control and NC represents negative control. Data are shown as mean ± SD, n = 3Back to article page