Fig. 7.
Chronological lifespan analyses. (A) Parental (●), bna6Δ (▼), and pnc1Δ (■) yeast strains, and (B) idhΔ (○), idhΔ bna6Δ (▽), and idhΔ pnc1Δ (□) yeast strains were grown to stationary phase in minimal glucose medium prior to transfer to water for chronological lifespan assays conducted as described under Materials and methods. Viable cell numbers are expressed as a percentage of the initial value for each strain.