Conserved RGF1 peptide signaling regulates root meristem development through ROS in Arabidopsis and rice

Our study identifies OsRGF1-1 as the rice counterpart of Arabidopsis RGF1. Rice Osrgf1-1 mutants have shorter seminal roots, smaller root meristems and less superoxide. The OsRGF1-1 peptide reverses these defects and acts through the conserved RGF receptors, showing for the first time that the RGF1–receptor–ROS module controlling root meristem development is shared between dicots and monocots.

Lai J-K, Jhang J-N, Yen H-C, Cho H-Y, Hsiao Y-C, Balasubramaniam H, Tseng C-S, Yamada M. (2026) Conserved RGF1 peptide signaling regulates root meristem development through ROS in Arabidopsis and rice. Journal of Experimental Botany, doi:10.1093/jxb/erag498