Figure 4: E. coli cells lacking Lhr are sensitive to
oxidative stress
(A ) Viability spot tests showing moderately increased
sensitivity of Δlhr cells to AZT (7.5 µg/mL) compared with wild
type (wt) cells, and (B ) represented in viability curves when
Δlhr and wild type cells were grown independently in media
containing AZT at 2.5, 5, 7.5 or 10 µg/mL. The plots show grow relative
to wild type cells grown in media lacking AZT.
(B ) Growth of Δlhr and wild type cells monitored in 96
well plates in media containing 12.5 mM
H2O2, and (C ) viability spot
tests comparing Δlhr and wild type cells grown in
H2O2 added to media at 1.5625, 3.75,
6.25 and 12.5 nM.