Oxygen availability strongly affects chronological lifespan and thermotolerance in batch cultures of .

Stationary-phase (SP) batch cultures of , in which growth has been arrested by carbon-source depletion, are widely applied to study chronological lifespan, quiescence and SP-associated robustness. Based on this type of experiments, typically performed under aerobic conditions, several roles of oxygen in aging have been proposed. However, SP in anaerobic yeast cultures has not been investigated in detail.