OsJAR1 and OsJAR2 are jasmonyl-l-isoleucine synthases involved in wound- and pathogen-induced jasmonic acid signalling

► Two genes from rice plant, OsGH3.5 (OsJAR1) and OsGH3.3 (OsJAR2), had been confirmed to encode functional JA-Ile synthase. ► The expression of OsJAR1 and OsJAR2 were induced in response to wounding with the concomitant accumulation of JA-Ile. ► Only the expression of OsJAR1 was associated with the accumulation of JA-Ile after blast infection.