Salicylic Acid Induced Resistance of Plants against Insects and Diseases and Its Interaction Mechanism

Salicylic acid (SA) is a new resistance inducer, and has been a focus in development of SA-induced resistance of plants to diseases and pests. The basic properties and the function of salicylic acid involved in plant resistance to diseases and pests are introduced. The mechanism of salicylic acid in inducing resistance of plants to pest insects and diseases is discussed in terms of interaction of salicylic acid with salicylic acid-binding protein, and salicylic acid-dependent signaling pathway. The prospects for ap plication of SA in inducing resistance of plants to pests and diseases are also made.