Fig. 6

infA-based plasmid selection in different E. coli strain backgrounds. The strains were transformed with the plasmid CGB289, and subsequently streaked on LB-agar with and without arabinose supplementation. The empty strains showed no growth or significantly reduced growth in the absence of arabinose. The strains with plasmid grew on both plates and showed purple pigment from the plasmid-encoded chromoprotein