Ethylene signaling participates in microtubule reassembly under salt stress: a working model. Cortical microtubules initially depolymerize and then recover themselves under salt stress. PHS1-mediated phosphorylation of α-tubulin promotes microtubule depolymerization under salt stress. SPR1 is degraded by the proteasome-mediated protein degradation pathway, which facilitates salt-induced rapid depolymerization of cortical microtubules. Ethylene signaling plays a positive role in microtubule reassembly under salt stress. WDL5, as a downstream effector of ethylene signaling, promotes microtubule reassembly and salt tolerance in plants. In addition, PA binding to MAP65-1 and relocalization of RIC1 favor microtubule reassembly under salt stress. Scale bars = 20 μm.