Phenotypes of WT and lut2.1 grown in normal and high light conditions. (A) Three-weeks-old WT (Fig. 1,3) and lut2.1 (Fig. 2,4) plants were grown for 3 additional weeks in normal light conditions (21°C, 120 μmol m-2 s-1 - LL) (Fig. 1,2) or in high light conditions (21°C, 1400 μmol m-2 s-1 - HL) (Fig. 3,4). (B) Tris-Tricine SDS-PAGE analyses of thylakoid from LL or HL plants. Main protein components are indicated. (C) Relative level of thylakoid antenna proteins evaluated by densitometry of bands identified by immunoblotting.