Arabidopsis pollen contains a vegetative nucleus and two sperm cells that move to the apical region during pollen tube growth. Here, Motomura et al. make use of transgenic pollen with immobilized nuclei and show that, contrary to previous assumptions, movement of the vegetative nucleus is not needed for pollen tube guidance.
- Kazuki Motomura
- Hidenori Takeuchi
- Daisuke Maruyama
