Identification of Nematicidal Constituents of Notopterygium incisum Rhizomes against Bursaphelenchus xylophilus and Meloidogyne incognitaReport as inadecuate


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


Identification of Nematicidal Constituents of Notopterygium incisum Rhizomes against Bursaphelenchus xylophilus and Meloidogyne incognita - Download this document for free, or read online. Document in PDF available to download.

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

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





Author: Gai Liu 1, Daowan Lai 2, Qi Zhi Liu 1, Ligang Zhou 2 and Zhi Long Liu 1,*

Source: http://mdpi.com/



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