Dioxygenase JID1 mediates the modification of OPDA to regulate jasmonate homeostasis.

Dear Editor, The phytohormone jasmonate (JA), including jasmonic acid and its oxylipin derivatives, is essential for plant resistance against various stresses[1],[2]. Here, we identify I Jasmonate-Induced Dioxygenase1 i ( I JID1 i ) that encodes a 2OGD modifying OPDA and reducing the conversion of OPDA into jasmonic acid and JA-Ile. Interestingly, the amounts of OPDA, jasmonic acid, and JA-Ile in loss-of-function mutants I jid1-1 i and I jid1-5 i were similar to those of WT (Supplementary Figs. [Extracted from the article]