loading . . . ABP1/ABL3-TMK1 cell-surface auxin signaling targets PIN2-mediated auxin fluxes for root gravitropism In gravistimulated roots, gravity perception in the columella redirects the flow of
the plant hormone auxin toward the lower root side, where it inhibits cell elongation
for downward root bending. Thi... https://www.cell.com/cell/fulltext/S0092-8674(25)00981-X