N-glucosylation of indole-3-acetyl amino acids modulates auxin metabolism and growth traits in Oryza sativa

Proceedings of the National Academy of Sciences, Volume 123, Issue 12, March 2026. <br/>SignificanceAlthough auxin metabolism is central to the regulation of plant growth and development, the fate of conjugates beyond oxidation has remained unclear. Here, we identify a rice UDP-glucosyltransferase, IAAspGT, that catalyzes theN-glucosylation …