Plant BiologybioRxivPreprint
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Excess salicylic acid mediates graft incompatibility by repressing auxin-dependent vascular reconnection in tomato
Ruiduo Han, Kaiwei Meng, Xiujuan Wang…·Hannah Rae Thomas
Salicylic acid (SA) overaccumulates in tomato-pepper graft rootstocks alongside suppressed auxin; exogenous SA phenocopies failed xylem reconnection, while SA-deficient nahG tomato self-grafts also fail.