Growth curves of the parent strain (black) and selected mutants (in color) exposed to different stress conditions.

<p><b>A.</b> Parent strain (blue) and ΔH225.2P (red) after the application of a temperature down-shift (arrow). <b>B.</b> Parent strain, ΔH225.2P (red), and Δhtsf468 (blue) after the application of a osmotic down-shift (arrow). <b>C.</b> The same strains as in B. grown in the absence of stress. <b>D.</b> Parent strain, Δ132 (blue), Δ308 (green), and Δ500 (purple) after the exposure to oxidative stress (arrow).