Figure 7.

The effect of the various NtPPME1 protein domains on pollen tube growth. Average lengths of N. tabacum pollen tubes are shown 6 h after transformation by microprojectile bombardment. Pollen was transformed with the indicated amounts of DNA all under the control of the Lat52 promoter. All pollen grains were cobombarded with 3 μg of Lat52-GFP as a marker for transformation. Lat52-GUS was used as mock to ensure equal amounts (15 μg) of DNA used for each transformation. Bars represent the mean values from at least four independent experiments with n ≥ 50 each. Error bars indicate the se obtained for the mean values.