Figure 6
The expression of imp and abc is medium-dependent and strain-specific. a) Thin Layer Chromatography followed by bioassays of thiostrepton (1); SL-ESAC (2), SL-3.5 (3), S. coelicolor (4), SC-3.5 (5) and S. laurentii (6) extracts. Solvent: acetone. Tester strain: M. luteus. b) qRT-PCR analysis of abc and imp transcription in SL-3.5 and SC-3.5 grown on ONA (grey bars) and R2YED (black bars).