题目：Sorbitol Signaling and Resistance to Alternaria in Apple
Dr. Lailiang Cheng, Professor of Horticulture, Cornell University. He has an appointment of research and extension in nutrition and stress physiology of deciduous fruit crops with emphasis on apple. The goal of his research program is to better understand the physiological processes underlying carbon/mineral nutrition and environmental stresses on tree growth and fruiting. The goal of his extension program is to effectively deliver research-based, up to date information and provide expertise concerning nutrient management to the apple industry in New York. He has published many papers in Plant Cell, New Phytologist, Nature Communications, Plant Physiology, Journal of Experimental Botany, etc.