Figure 1
Complementation assay in the E. coli recA- strain.
An increase in H2O2 resistance was observed in the DH10B strain due to the presence of an environmental clone (pBC-41 F, containing the ExoMeg1 ORF). Undiluted cultures and serial dilutions (10−2, 10−3, 10−4 and 10−5) from cultures (OD600 of 0.8) were plated on LB agar containing 1 mM H2O2.
