Peng Youliang is mainly engaged in scientific research and teaching of molecular plant pathology. Since returning to China in 1992, he has presided over many important projects such as the National Climbing Plan Project, the National Education Commission's "Outstanding Cross-Century Talents Plan" Fund Project, the National Natural Science Foundation of China's Outstanding Youth Science Fund Project, the National Natural Science Foundation of China, and the American Rockefeller Foundation Project. research and achieved some significant research results: two new phytoalexins were discovered and purified from rice, their chemical structures were clarified, and the phytoalexins and their derivatives were artificially synthesized. This is Chinese scholars reported for the first time the isolation and structural analysis of new phytoalexins; they purified two lipoxygenases induced by Magnaporthe oryzae from rice, prepared antisera, determined their partial amino acid sequences, and based on this, cloned the coding The cDNA of these two lipoxygenases; the fatty acid peroxide hydroxylase epoxygenase induced by Magnaporthe oryzae was isolated and purified from rice for the first time; it was first proposed that "the existence of inducible and disease-susceptible genes in plant genomes" " Hypothesis and its application in genetic engineering of durable blast-resistant rice, four kinds of inducible cDNA were isolated from rice leaves infected by Magnaporthe oryzae through differential display method, and the promoters of some of the genes were isolated; from oxysporum An inducible superoxide dismutase related to the expression of fusarium wilt symptoms was found in Fusarium-infected cotton. These research results are obviously innovative and advanced.
Peng Youliang has given lectures to graduate students on "Advanced Plant Pathology", "Plant Disease Professional Seminar", "Molecular Plant Pathology", "Molecular Plant Pathology Experimental Technology", and "Research Progress in Molecular Plant Pathology" "" and other courses, timely introduction of foreign cutting-edge research trends and progress in the lectures, attention to inspiring students' creativity and scientific research enthusiasm, are very popular among students, among which "Molecular Plant Pathology" was rated as an excellent course. He presided over the establishment of the Molecular Plant Pathology Laboratory, which was approved as a key open laboratory by the Ministry of Agriculture in 1997.