Fig. 5: Identification of a galactosyltransferase and a xylosyltransferase glycosylating the 3-O-glucuronide of QA-3-GlcA.

EIC of QA-3-GlcA (a), QA-3-GlcA-Gal (b), and QA-3-GlcA-Gal-Xyl (c) from plants transiently expressing SvCslG, SvCslG + SvGalT, and SvCslG + SvGalT + SvC3XylT as indicated and infiltrated with QA solution. Corresponding mass spectra are shown in Supplementary Fig. 13.