SPEAKER:  Yanqun Xu, Professor (Tenure Associate Professor)

TIME ：12:40-14:00 Apr. 22nd, 2026 (Wed)

VENUE：Room 104, Building B, SAB

ORGANIZER：Office of Discipline and Science & Technology, SAB;  Young Teachers Association, SAB

TITLE：

Research on the Green Preservation Mechanism of Fruits and Vegetables Based on Natural Volatile Substances 

ABSTRACT：

The postharvest supply chain is a critical stage for enhancing the value of fresh fruits and vegetables. However, spoilage and deterioration in China's fruit and vegetable supply chain account for as much as 25%. Identifying key targets for reducing fruit loss based on the fruit–pathogen interaction mechanism is a core scientific issue in this context. Plant volatile organic compounds (VOCs) possess diverse biological functions, including information transmission, physiological regulation, and disease resistance, and have emerged as novel regulators in the modulation of fruit–pathogen interactions. Our research focuses on the molecular mechanisms by which natural VOCs regulate postharvest fruit–pathogen interactions. By investigating both the enhancement of fruit resistance and the regulation of pathogen infection, we reveal the biological functions and molecular mechanisms of plant VOCs within the crosstalk network between abiotic/biotic stress factors and postharvest fruit signaling. We further clarify the biological basis of postharvest-induced fruit resistance through multifaceted signal transduction. For the first time, we extend the understanding of pathogen infection in fruits from the perspective of nutrient assimilation, providing an important theoretical foundation for environmentally friendly and efficient loss reduction in the fruit and vegetable supply chain.