Nematocidal flavone-C-glycosides against the root-knot nematode (Meloidogyne incognita) from Arisaema erubescens tubers |
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| Authors: | Du Shu Shan Zhang Hai Ming Bai Chun Qi Wang Cheng Fang Liu Qi Zhi Liu Zhi Long Wang Yong Yan Deng Zhi Wei |
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| Institution: | State Key Laboratory of Earth Surface Processes and Resource Ecology, Beijing Normal University, Beijing, China. dushushan@bnu.edu.cn |
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| Abstract: | A screening of several Chinese medicinal herbs for nematicidal properties showed that Arisaema erubescens (Wall.) Schott tubers possessed significant nematicidal activity against the root-knot nematode (Meloidogyne incognita). From the ethanol extract, two nematicidal flavone-C-glycosides were isolated by bioassay-guided fractionation. The compounds were identified as schaftoside and isoschaftoside on the basis of their phytochemical and spectral data. Schaftoside and isoschaftoside possessed strong nematicidal activity against M. incognita (LC(50) = 114.66 μg/mL and 323.09 μg/mL, respectively) while the crude extract of A. erubescens exhibited nematicidal activity against the root-knot nematode with a LC(50) value of 258.11 μg/mL. |
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