The Hidden Pathways Affecting Salicylic Acid Signaling in Plants

The role of salicylic acid (SA), a small phenolic compound, in plant defense against a wide range of pathogens is highly significant. The SA function in plants has been widely investigated for years. The presence of SA is critical in responding to various abiotic and biotic stress conditions. Because of its crucial role in developing and regulating plant immunity, it has been extensively studied in plants. The results have shown the role of numerous plant genes in signaling salicylic acid. Much of the efforts have focused on enhancing yield under various unfavorable circumstances and agricultural productivity; therefore, more knowledge about SA signaling can help scientists and other end users to understand the physiological processes of SA and the importance of SA immunity.