Figure S2. Proteins on nitrocellulose membranes were detected with Ponceau staining. Proteins transferred from SDS-PAGE gels to nitrocellulose membranes were stained with 5% Ponceau in 1% acetic acid for several minutes, and then washed with 1% acetic acid. A, For Rubisco detection with antiRubisco-polyclonal antibody and B, For α-tubulan detection with anti-α-tubulin-monoclonal antibody. ARs, adventitious roots.