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Antifungal Activity of Decursinol Angelate Isolated from Angelica gigas Roots Against Puccinia recondita
Res. Plant Dis. 2011;17:25-31
Published online April 30, 2011
© 2011 The Korean Society of Plant Pathology.

윤미영 ( Mi Young Yoon ) , 김영섭 ( Young Sup Kim ) , 최경자 ( Gyung Ja Choi ) , 장경수 ( Kyoung Soo Jang ) , 최용호 ( Yong Ho Choi ) , 차병진 ( Byeong Jin Cha ) , 김진철 ( Jin Cheol Kim )
cc This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
Abstract
Rust causes significant losses in the yield and quality of various crops. The development of new effective and environmentally benign agents against the pathogen is of great interest. In the course of searching a natural antifungal compound from medicinal plants, we found that the methanol extract of Angelica gigas roots had a potent control efficacy against wheat leaf rust (WLR) caused by Puccinia recondita. The antifungal substance was isolated from the methanol extract by silica gel column chromatography, alumina column chromatography and C18 preparative HPLC. It was identified as decursinol angelate by EI-MS and 1H-NMR data. In in vivo test, decursinol angelate effectively suppressed the development of WLR and red pepper anthracnose (RPA) among the 6 plant diseases tested. In addition, the wettable powder-type formulation of ethyl acetate extract of A. gigas roots significantly suppressed the development of WLR. The crude extract containing decursinol angelate and the chemical appear to be a potential candidate for control of WLR. In addition, this is the first report on the in vivo antifungal activity of decursinol angelate against WLR as well as RPA.
Keywords : Angelica gigas, Decursinol angelate, Fungicidal activity, Wheat Leaf rust


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