Figure 7.
The absence of BICAT3 hampers pollen tube growth. A, Activity of BICAT3 promoter in pollen grains and pollen tubes as detected by GUS staining of ProBICAT3-GUS line. Scale bar represents 50 µm. B, Activity of BICAT3 promoter in pollen grains and pollen tubes of ProBICAT3-BICAT3-Venus line. Scale bars represent 100 µm. C, Semi in vivo pollen tube growth assay of Col-0, bicat3-1, and bicat3-2 germinated on Col-0, bicat3-1, or bicat3-2 pistils. Pictures were taken 12 h after pollination. Images taken from Supplemental Figure S21. Scale bar represents 1 mm and applies to all images.
