A heat stress treatment was imposed on B73 inbred maize three weeks after germination by increasing ambient air temperatures in the greenhouse from 25C to 30C for one day followed by 40C for 7 days, before a recovery phase at 25C for 3 days. We developed a broad-level view of heat stress effects by determining the quantitative thylakoid proteome at six time points during the ehat stress and recovery, namely the reference unstressed time-point (0 days heat stress; 25C), 1 day of heat stress (40C), 3 days heat stress (40C), 7 days heat stress (40C), 1 day of recovery and 3 days of recovery.