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OsPOX1promoter sequence, a schematic diagram of POsPOX1-GUSconstruct, and histochemical localization of GUS activity in the POsPOX1-GUStransgenic plants. a The nucleotide sequence of ca. 1.8 kb ofOsPOX1promoter region. The positions of nucleotides are shown on theleft. Putative CAAT, TATA boxes, and start codon are underlined. bChimeric gene construct ofGUSunder theOsPOX1 promoter. TheOsPOX1promoter region was fused to theGUSgene of the binary vector, generating pSK228 and introduced into rice genome byAgrobacterium-mediated cocultivation method.RB, right border of T-DNA; POsPOX1, OsPOX1promoter; GUS, β-glucronidase gene; TNOS, nopaline synthase terminator; P35S, CaMV 35S promoter; hph, hygromycin phosphotransferase gene; 7’, termination region of Transcript 7 of pTiA6;LB, left border of T-DNA.