Disease and Pest Resistance through Phenolic Substances in the Solanaceae

With the expansion of the planting area of the Solanaceae, diseases and pests have become the main threats to Solanaceae production. Research on the mechanisms of Solanaceae disease and pest resistance is important. Studies have shown that phenolic compounds, which are important secondary metabolites and exist widely in the Solanaceae, are involved in a variety of biological and abiotic stress responses. Phenolic substances are closely related to Solanaceae disease and pest resistance. Solanaceous plants release endogenous phenolic substances in response to pathogen infection. Meanwhile, some exogenous phenolic substances function to prevent and control pests and diseases during the production of solanaceous plants. Therefore, determining the mechanisms of phenolic substances-mediated resistance in the Solanaceae is significant for subsequent research to breed disease and pest resistant solanaceous plants. This review discusses the effects of phenolic substances on disease and pest resistance of the Solanaceae, and analyzes the resistance mechanisms mediated by these substances.