FIG. 5.

Comparison of the susceptibilities to ethanol-induced stress of S. cerevisiae parental strain W303-1A, harboring the FPS1 expression plasmid (□) or the corresponding empty vector (⋄), to those of the derived deletion mutant Δfps1, harboring the FPS1 expression plasmid (○) or the corresponding empty vector (▵). Cells were grown in the absence of ethanol and then incubated in MM4 liquid medium supplemented with 6% ethanol. Growth curves are representative of at least three independent experiments.