Nitrate-induced NLP1 SUMOylation regulates nitrate signaling and root nodulation

Proceedings of the National Academy of Sciences, Volume 123, Number 4, January 2026.
ImportanceNodulation of legumes allows biological nitrogen fixation but is strongly repressed by nitrate. NIN-like proteins (NLPs) mediate this nitrate response, but how their activity is regulated remains unclear. Here we demonstrate that SUMOylation – a…