Relationships between Jasmonic Acid and Salicylic Acid in Wounding Signal Transduction Pathways

Salicylic acid (SA) and jasmonic acid (JA) are kinds of growth regulation substances with ubiquitous distribution among plants. It has been shown that both SA and JA are in wounding signal transduction pathways. It has been suggested that cytokinins and small GTP_binding proteins might be the switch of JA and SA signaling pathways. Advances have been made in the study of the relationships between JA_ and SA_signal transduction pathway. SA or ASP (Aspirin) prevents wound_induced gene expression by blocking JA biosynthesis; JA inhibits pathogen_induced accumulation of SA.