Starch and protein levels. Plants were harvested at the middle of the light period. Data are given as mean ± SE (n =3 pools of 10 plants). Values denoted with an asterisk are significantly different from the wild type or control (t test, P <0.05). A, Starch levels of wild-type (C24), CPD-antisense, and cbb1 plants. B, Starch levels of BRZ treated plants. C, Protein levels of C24, CPD-antisense, and cbb1 plants. D, Protein levels of BRZ treated plants.