The RrWRKY75-mediated activation of ascorbate synthesis in Rosa roxburghii Tratt contributes to salt stress tolerance.
Yeast two-hybrid and bimolecular fluorescence complementation assays confirm the physical interaction between RrWRKY75 and RrUNE12, which jointly upregulates RrGGP2 expression and AsA production and boosts AsA biosynthesis and salt tolerance.