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Network Pharmacology Prediction and Metabolomics Validation of the Mechanism of Fructus Phyllanthi against Hyperlipidemia
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Nematicidal prenylated flavanones from Phyllanthus niruri.

N A Shakil1, Pankaj, J Kumar

  • 1Division of Agricultural Chemicals, Indian Agricultural Research Institute, New Delhi 110 012, India. iamshakil@gmail.com

Phytochemistry
|October 2, 2007
PubMed
Summary

Two flavanones from Phyllanthus niruri were identified and tested for nematicidal activity. Compound 2 showed significant activity against reniform and root-knot nematodes, comparable to carbofuran.

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Area of Science:

  • Natural Product Chemistry
  • Agricultural Science
  • Nematology

Background:

  • Phyllanthus niruri is a plant with potential medicinal properties.
  • Nematodes such as Meloidogyne incognita and Rotylenchulus reniformis cause significant crop damage.
  • Natural products are explored as alternatives to synthetic pesticides.

Purpose of the Study:

  • To isolate and characterize prenylated flavanones from Phyllanthus niruri.
  • To evaluate the nematicidal activity of isolated compounds against key agricultural nematode pests.

Main Methods:

  • Hexane extraction of Phyllanthus niruri plant material.
  • Structure elucidation of isolated compounds using spectral analysis.
  • Nematicidal bioassays against Meloidogyne incognita and Rotylenchulus reniformis.

Main Results:

  • Two prenylated flavanones, 8-(3-Methyl-but-2-enyl)-2-phenyl chroman-4-one (1) and 2-(4-hydroxyphenyl)-8-(3-methyl-but-2-enyl)-chroman-4-one (2), were isolated and identified.
  • Compound 2 demonstrated potent nematicidal activity against reniform nematodes (LC50 3.3 ppm) and root-knot nematodes (LC50 14.5 ppm), comparable to carbofuran.
  • Compound 1 exhibited moderate nematicidal activity against both nematode species.

Conclusions:

  • Prenylated flavanones from Phyllanthus niruri possess significant nematicidal properties.
  • Compound 2 is a promising natural candidate for controlling reniform and root-knot nematodes.
  • Further research into Phyllanthus niruri constituents could lead to novel, eco-friendly nematicides.