Plasmid copy number (PCN) in lactobacilli harboring vectors with the NucA reporter gene.

*All plasmid copy numbers were calculated from minimum two biological replicates, each analyzed by triplicate qPCR runs. The data shown are the means ± standard deviations.所有质粒拷贝数均通过至少两次生物学重复计算得到，每组生物学重复均经三次重复定量PCR（qPCR）实验分析。所呈现的数据为平均值±标准差。