Figure 4.
Specific non-essential amino acids promote chronological longevity. The CLS of autophagy-deficient (atg1Δ, atg7Δ) yeast was measured in synthetic dextrose minimal medium containing individual non-essential amino acids (I, T, V, D, E, F, R, S, W, M, or Y) or adenine (a) added to final concentrations as described in Table 2. Viability in colony forming units (CFU) per ml of culture is plotted as the log of the percent of viability on day 2.