Figure 6.

VIGS-OHP2 plants show a high-chlorophyll-fluorescence phenotype. A, Room-temperature chlorophyll fluorescence analysis (PAM). Pulses were set to 6,000 µmol photons m⁻² s⁻¹, and Kautsky induction (i.e. actinic light) was performed at a flux of 100 µmol photons m⁻² s⁻¹. Curves represent mean values from four biological replicates. B, Low-temperature chlorophyll fluorescence analysis. The chlorophyll concentration was adjusted to 5 µg mL⁻¹ to prevent reabsorption of the emitted light, and fluorescence was recorded at 77K in liquid nitrogen. a.u., arbitrary units.