a, Design for steady-state (left) or fluctuating light (FL3) (right) response curves. b, c, Electron transport rate (ETR), defined as µmol photons, (b) and NPQ (c) in 4-week-old wild-type (WT) and 3 independent VPZ lines (nos. 2, 4 and 7). Dots represent the mean of n = 7 independent experiments. Corresponding data for standard deviations and statistical differences from WT according to a two-tailed Student’s t-test can be found as Source Data.