Root Ion flux and transcriptomic analyses reveal the response mechanisms of Gleditsia sinensis seedlings to salt stress
The results demonstrated that while salt stress induced substantial Na⁺ accumulation, roots actively responded by promoting Na⁺ efflux and H⁺ influx in the elongation zone, and transcriptional reprogramming established a transmembrane proton gradient that drove effective Na⁺ efflux and maintained intracellular K⁺ homeostasis.