Figure 9.

Exacerbated Phenotypes of Double Mutants with Defects in State Transitions (stn7-1 or psal-1) and in Linear Electron Flow (pete2-1, psad1-1.1, or psae1-3).

As a negative control, the stn8-1 single mutant and the corresponding double mutants are shown.

(A) Four-week-old plants grown in a growth chamber under long-day conditions.

(B) Average leaf areas of 20 plants for each genotype.

(C) Effective quantum yield (Φ_II) for each genotype.

(D) 1-qP, the fraction of Q_A (the primary electron acceptor of PSII) present in the reduced state for each genotype. Detailed values are given in Supplemental Table 2 online.