Jasmonate biosynthesis and signaling in monocots: a comparative overview.

The plant hormone jasmonate (JA) fulfils essential roles in plant defense and development. While most of our current understanding of the JA pathway comes from the dicotyledonous model plant Arabidopsis thaliana, new studies in monocotyledonous plants are providing additional insights into this important hormone signaling pathway. In this review, we present a comparative overview of the JA biosynthetic and signaling pathways in monocots. We highlight recent studies that have revealed molecular mechanisms (mostly conserved but also diverged) underlying JA signaling and biosynthesis in the economically important plants: maize and rice. A better understanding of the JA pathway in monocots should lead to significant improvements in pest and pathogen resistance in cereal crops, which provide the bulk of the world's food and feed supply.