Figure 4.

Characterization of UGT76C5 in Arabidopsis thaliana. (A) Glycosyltransferase assays using purified recombinant UGT76C proteins incubated with [¹⁴C]-NA and UDP-arabinose, UDP-xylose, or UDP-glucose as substrates. (B) Chemical analysis of the 10-day-old whole seedlings of UGT76C5 transgenic plants. It is noteworthy that MeNA was measured using different method (detailed see Wu et al., 2018). Bars show means ± SDs (n = 3). Asterisks indicate significant differences from the Col-0 plants; *P < 0.05, **P < 0.01 (two-tailed Student’s t test). F.W., fresh weight.