Table I. Oxygen evolution rates in wild-type, Δflv4, ΔpsbA2, and flv4-2/OE strains with different electron acceptors and inhibitors

Steady state oxygen evolution (in µmol O2 mg−1 chlorophyll h−1) was measured with an oxygen electrode under saturating light conditions. The cultures were adjusted to a chlorophyll concentration of 5 µg mL−1. Each value is an average of at least three independent experiments ± sd.

StrainsDMBQ (2 mm)DCBQ (0.5 mm)DBMIB (2 µm)
Wild type600 ± 11493 ± 18124 ± 2
Δflv4540 ± 9565 ± 1790 ± 4
ΔpsbA2565 ± 21513 ± 21120 ± 3
flv4-2/OE641 ± 8421 ± 10134 ± 3