Fig. 5From: Regulation mechanism and bioactivity characteristic of surfactin homologues with C14 and C15 fatty acid chainsGene transcription levels and functional gene validation. A RT-qPCR analysis of glnP, glnQ, glnH and gdh genes expression in sample C14 vs control, and RT-qPCR analysis of ybcM, pstS, spmH and lctE genes expression in sample C15 vs control. B Surfactin titer and OD600 of B. subtilis Q1 by overexpressing bkdAA, bkdAB, phoB, rapE, glnA and glnJ. C Surfactin homologues proportion of B. subtilis Q1 by overexpressing bkdAA, bkdAB, phoB, rapE, glnA and glnJBack to article page