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Molecules 2016, 21(10), 1276; doi:10.3390/molecules21101276

Identification of Nematicidal Constituents of Notopterygium incisum Rhizomes against Bursaphelenchus xylophilus and Meloidogyne incognita

1
Department of Entomology, China Agricultural University, Haidian District, Beijing 100193, China
2
Department of Plant Pathology, China Agricultural University, Haidian District, Beijing 100193, China
*
Author to whom correspondence should be addressed.
Academic Editor: Derek J. McPhee
Received: 28 July 2016 / Revised: 12 September 2016 / Accepted: 20 September 2016 / Published: 23 September 2016
(This article belongs to the Section Natural Products)
View Full-Text   |   Download PDF [389 KB, uploaded 23 September 2016]   |  

Abstract

During a screening program for new agrochemicals from Chinese medicinal herbs, the ethanol extract of Notopterygium incisum rhizomes was found to possess strong nematicidal activity against the two species of nematodes, Bursaphelenchus xylophilus and Meloidogyne incognita. Based on bioactivity-guided fractionation, the four constituents were isolated from the ethanol extract and identified as columbianetin, falcarindiol, falcarinol, and isoimperatorin. Among the four isolated constituents, two acetylenic compounds, falcarindiol and falcarinol (2.20–12.60 μg/mL and 1.06–4.96 μg/mL, respectively) exhibited stronger nematicidal activity than two furanocoumarins, columbianetin, and isoimperatorin (21.83–103.44 μg/mL and 17.21–30.91 μg/mL, respectively) against the two species of nematodes, B. xylophilus and M. incognita. The four isolated constituents also displayed phototoxic activity against the nematodes. The results indicate that the ethanol extract of N. incisum and its four isolated constituents have potential for development into natural nematicides for control of plant-parasitic nematodes. View Full-Text
Keywords: Notopterygium incisum; Bursaphelenchus xylophilus; Meloidogyne incognita; nematicidal activity Notopterygium incisum; Bursaphelenchus xylophilus; Meloidogyne incognita; nematicidal activity
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Liu, G.; Lai, D.; Liu, Q.Z.; Zhou, L.; Liu, Z.L. Identification of Nematicidal Constituents of Notopterygium incisum Rhizomes against Bursaphelenchus xylophilus and Meloidogyne incognita. Molecules 2016, 21, 1276.

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