The industrial processes and human activities increase heavy metal release into the soil. As ahighly toxic heavy metal element in soil, cadmium (Cd) can be easily absorbed by plants andenriched in edible parts of plants. Through the food chain, Cd enters human body and threatenshuman health. Increasing evidence has shown that salicylic acid (SA) is involved in plantresponses to various adverse stresses including heavy metal Cd. However, SA-relatedmechanism in plant response to Cd is less understood. In addi...