Figure 1.LBD10 expression is restricted to pollen. Whole mount images of LBD10_pro:GUS transgenic Arabidopsis plants showing GUS activity in (A) the inflorescence; (B) a flower; (C) pollen grains and pollen tubes on the stigma and style. The LBD10 promoter region, from –1895 bp upstream of the ATG to +63, was cloned into the BamHI site of pCB308⁴³ to create an in-frame translational fusion of the first 21 amino acids of LBD10 to GUS. Images were captured using a stereo microscope (A,B) or compound microscope with Nomarski optics (C). Bars = 2 mm (A), 500 μm (B), 100 μm (C).