期刊
E-JOURNAL OF CHEMISTRY
卷 8, 期 -, 页码 S143-S148出版社
HINDAWI LTD
DOI: 10.1155/2011/470862
关键词
Chenopodium ambrosioides; Meloidogyne incognita; (Z)-Ascaridole; rho-Cymene; Isoascaridole; Essential oil composition
资金
- Hi-Tech Research and Development of China [2011AA10A202]
- Special Fund for Agro-scientific Research in the Public Interest [201003064, 201003043, 201004037]
Essential oil of Chinese medicinal herb, Chenopodium ambrosioides aerial parts was found to possess nematicidal activity against the root-knot nematodes, Meloidogyne incognita. The essential oil of C. ambrosioides was obtained by hydrodistillation and analyzed by gas chromatography-mass spectrometry (GC-MS). A total of 27 components of the essential oil were identified. The principal compounds in C. ambrosioides essential oil were (Z)-ascaridole (27.27%), rho-cymene (19.05%), isoascaridole (14.75%), alpha-pinene (6.33%) and alpha-terpinene (5.12%). Bioactivity-guided chromatographic separation of the essential oil on repeated silica gel columns led to isolate three volatile components ((Z)-ascaridole, rho-cymene and isoascaridole) from the essential oil. The essential oil and (Z)-ascaridole exhibited strong nematicidal activity against M. incognita with LC50 values of 49.55 mu g/mL and 32.79 mu g/mL, respectively. rho-Cymene and isoascaridole also possessed nematicidal activity against M. incognita with LC50 values of 435.89 mu g/mL and 1323.51 mu g/mL, respectively but weaker than the crude essential oil.
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