Figure 2.

Characterization of the Δrca Mutant at Ambient CO₂.

(A) Immunoblot analysis from leaves of Arabidopsis wild-type (RCA/RCA), heterozygous (RCA/Δrca), and homozygous (Δrca/Δrca) plants. The blot was immunodecorated with polyclonal antibodies raised against the recombinant Arabidopsis RCA1.

(B) Photosynthetic performance (Fq′/Fm′) of 3-week old wild-type (top) and Δrca (bottom) plants as measured using fluorescence image analysis.

(C) Leaf area (mm²) of the plants described in (B) (50 plants per phenotype) at the indicted age.

(D) Eight-week-old wild-type (top) and Δrca (bottom) plants.