In this study, Higashiyama and colleagues examine pollen tube guidance in Torenia fournieri and identify the secreted guidance factors. These are cysteine-rich polypeptides belonging to the subgroup of defensin-like proteins (designated as LUREs), which are predominantly expressed in synergid cells and are required for pollen tube guidance.
- Satohiro Okuda
- Hiroki Tsutsui
- Tetsuya Higashiyama
