(C) WT, atg1Δ, atg2Δ, atg7Δ, atg11Δ, atg15Δ, and atg32Δ cells were nitrogen-starved as (A). Cell viability and respiratory competency was determined by phloxine B staining and TTC overlay technique as (A), respectively. The black and gray areas indicate the percentage of viable cells that are respiratory competent or respiratory deficient, respectively. These data represent the average of three independent experiments and bars indicate standard deviations. 