A, Tissue distribution of TRX f, TRX m, and FTR mRNA isolated from pea leaves (L), stems (St), roots (R), seeds (S), and flowers (F). Absolute mRNA levels of all genes were determined by semiquantitative RT-PCR. cDNA was standardized by reference to an actin standard. B, Western blotting analysis of different pea tissue extracts. PsTrxm, Antibodies against pea TRX m. PsTrxf, Antibodies against pea TRX f. Twenty micrograms of protein were loaded in each lane from tissue extracts of seeds (S), flowers (F), leaves (L), roots (R), and pods (P).