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Antifungal Activity of Impatiens balsamina against Ginseng Pathogen Alternaria panax  

An, Tae-Jin (Department of Herbal Crop Research, NIHHS, RDA)
Shin, Yu-Su (Department of Herbal Crop Research, NIHHS, RDA)
Lee, Seung-Eun (Department of Herbal Crop Research, NIHHS, RDA)
Ahn, Young-Sup (Department of Herbal Crop Research, NIHHS, RDA)
Kim, Young-Guk (Department of Herbal Crop Research, NIHHS, RDA)
Park, Chung-Berm (Department of Herbal Crop Research, NIHHS, RDA)
Yu, Seung-Hun (College of Agriculture & Life Sciences, Chungnam National University)
Publication Information
Korean Journal of Medicinal Crop Science / v.17, no.6, 2009 , pp. 464-469 More about this Journal
Abstract
This study was conducted to find out environment-friendly disease control method to Alternaria blight caused by Alternaria panax of ginseng. For this study, 150 methanol extracts from medicinal plants were evaluated and the extract of Impatiens balsamina showed most strong antifungal activity against A. panax. The methanol extract of I. balsamina showed also stable antifungal activity against other ginseng pathogens such as Botrytis cinerea and Fusarium sp., when treated by heat or pH. In vivo, Alternaria blight incidence rate was low of 13% with the treatment of I. balsamina methanol extract compared to 35% of the non-treatment. The antifungal compound of I. balsamina was purified and identified by using a silica gel column chromatography, TLC and ESI-LC/MS/MS analysis. The compound which showed strong antifungal activity was identified as 2-methoxy-1,4-naphtoquinone ($C_{11}H_8O_3$).
Keywords
Impatiens balsamina; Antifungal Activity; Alternaria panax;
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Times Cited By KSCI : 1  (Citation Analysis)
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