Pollen tubes constantly search for and respond to female cues for guided growth and efficient sperm delivery. In this study, the researchers characterized three MLO genes in Arabidopsis whose mutants showed twisting pollen tubes and deficiency in ovule targeting. As an ancient and vital gene family in plants, MLOs are also involved in pathogen resistance and plant–environment interactions.
- Jiang-Guo Meng
- Liang Liang
- Wei-Cai Yang