2. Academic Validation
  3. 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

  • Molecules. 2016 Sep 23;21(10):1276. doi: 10.3390/molecules21101276.
Gai Liu 1,  Daowan Lai 2,  Qi Zhi Liu 3,  Ligang Zhou 4,  Zhi Long Liu 5
Affiliations

Affiliations

  • 1 Department of Entomology, China Agricultural University, Haidian District, Beijing 100193, China. gailiu@126.com.
  • 2 Department of Plant Pathology, China Agricultural University, Haidian District, Beijing 100193, China. dwlai@cau.edu.cn.
  • 3 Department of Entomology, China Agricultural University, Haidian District, Beijing 100193, China. lqzwyz@cau.edu.cn.
  • 4 Department of Plant Pathology, China Agricultural University, Haidian District, Beijing 100193, China. lgzhou@cau.edu.cn.
  • 5 Department of Entomology, China Agricultural University, Haidian District, Beijing 100193, China. zhilongliu@cau.edu.cn.
PMID: 27669203 DOI: 10.3390/molecules21101276
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.

Keywords

Bursaphelenchus xylophilus; Meloidogyne incognita; Notopterygium incisum; nematicidal activity.

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