Figure 7From: Defects in leaf carbohydrate metabolism compromise acclimation to high light and lead to a high chlorophyll fluorescence phenotype in Arabidopsis thalianaTime course of Chl- a fluorescence yields of wild-type or double mutant plants in response to far red (FR) or actinic light (AL). The response of Chl-a fluorescence yields of Col-0 wild-type (A) or adg1-1/tpt-2 double mutant plants (B) towards FR or AL (at a PFD of 4000 μmol·m-2·s-1) was determined in time course experiments with a PAM 2100 fluorometer. The plants were dark-adapted for 30 min prior to the experiment. During the course of the experiment a saturation light pulse (SP) was applied after 5 s in order to determine Fo and Fm. Where indicated by arrows, FR or AL were either switched on (+) or off (-). SP indicates the application of saturation light pulsesBack to article page