Thermotolerant pollen tube growth is controlled by RALF signaling.
Rasha Althiab Almasaud, Sorel V Yimga Ouonkap, Jared Ingram, Yahir Oseguera, Mohamed Alkassem Alosman, Cassandra Travis, Jiaying Hou, Atticus Henry, Michelle Medina, Nathalie Oulhen, Kelsey Pryze, Nicholas A. DaSilva, Camila Molina, George P. Lisi, James B. Pease, , Mark A. Johnson
This study identifies RALF signaling as a regulator of thermotolerant pollen tube growth in tomato, showing that RALF peptides repress germination at normal temperatures but are antagonized by heat stress.
Proceedings of the National Academy of Sciences · Oct 15, 2026Peer-reviewedPlant Biology