Fig. 3

Characterization of the RAP2.4 KO-lines by determination of the rosette diameter, the leaf number, the initial quantum yield (F_V/F_M) of dark-adapted 4 weeks old plants and chlorophyll levels in mature leaves of 4 week old-plants grown at standard growth conditions and after 3 days with 4 h illumination with 750 μmol photons m⁻² s⁻¹ during the light phase (top) and in prolonged darkness (bottom). The photos depict the habitus of 4-week-old wildtype (Col-0), RAP2.4b KO-, RAP2.4d KO- and RAP2.4g KO-lines grown for 4 weeks under standard conditions. The asterisks indicate significant difference of the values obtained for RAP2.4-KO lines to Col-0 (two-way ANOVA; P < 0.01)