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Characterization and Antifungal Activity of Limonoid Constituents Isolated from Meliaceae Plants Melia dubia, Aphanamixis polystachya, and Swietenia macrophylla against Plant Pathogenic Fungi In Vitro
Authors: Thanh Nguyen Tan, Hieu Tran Trung, Quang Le Dang, Hien Vu Thi, Hoang Dinh Vu, Tuan Nguyen Ngoc, Hoai Thu Thi Do, Thanh Huong Nguyen, Dang Ngoc Quang, Thang Tran Dinh
321    0
Journal of Chemistry
:     :
: https://doi.org/10.1155/2021/4153790
: 1213-34-.pdf
Publishing year: 7/2021
and Botrytis cinerea, and three oomycetes Phytophthora species. Limonoids 2, 3, 6, and 8 displayed a remarkable broad-spectrum antifungal activity against all the test fungi. Sclerotium rolfsii was highly sensitive to the four limonoids with IC50 values ranging from 79.4 to 128.0 µg/mL. Notably, chisocheton compound G (3) isolated from A. polystachya and khayanolide B (8) isolated from S. macrophylla were the most potent antifungal limonoids and exhibited a dose-dependent activity against Phytophthora species. Compounds 2 and 9 displayed moderate activity against M. oryzae. Our study results demonstrated the discovery of antifungal and lead compounds from the group of limonoids for application in the control of fungal plant diseases.
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