Figure 1.

Degradation of RepGFP in vivo. E. coli wild-type, clpAΔ, clpPΔ, and clpXΔ strains carrying plasmids pBAD-GFP (A) or pBAD-RepGFP (B) were grown on LB agar containing 100 μg/ml ampicillin and 0.02% arabinose at 25°C for 72 hr and photographed using UV transillumination (312 nm).