Plant BiologybioRxiv
ABP1/ABL3-TMK1 cell-surface auxin signaling directly targets PIN2-mediated auxin fluxes for root gravitropism
L. Rodriguez, L. Fiedler, M. Zou…·J. Friml
The paper identifies a mechanism where auxin signaling via ABP1-TMK1 receptor module stabilizes PIN2 to reinforce asymmetric auxin flow for root gravitropism.
DOI 10.1016/j.cell.2025.08.026