Figure 5.

Time-lapse images of transgenic pollen tubes expressing YFP-RabA4b. A, A pollen tube treated with LatB for 15 min. Arrow indicates RabA4b labeling below apex, which resembles the so-called BIA. B, A pollen tube treated with Jas for 15 min. Asterisks indicate vacuoles. Scale bar = 20 μm. Serial images were taken starting after 15 min incubation with LatB (A) or Jas (B). Therefore time point 0 s is after 15 min treatment with the drugs. [See online article for color version of this figure.]