Biosynthesis of a major plant immunity hormone, salicylate, underwent multiple drastic changes during evolution of flowering plants
Fumiaki Katagiri, Evan A. Larson, Kunqi Hong, Kenichi Tsuda, Jerry D. Cohen, Adrian D. Hegeman
The paper quantifies SA biosynthesis pathways in flowering plants and finds they evolved from non-ICS/PAL to PAL to ICS, suggesting adaptive responses to pathogens.
bioRxiv · Aug 19, 2025 · PreprintPlant Biology