Molecules (Jul 2011)

Antifeedant Diterpenoids against Tribolium castaneum from the Stems and Twigs of Ceriops tagal (Rhizophoraceae)

  • Zhi Wei Deng,
  • Qi Zhi Liu,
  • Zhi Long Liu,
  • Hai Ming Zhang,
  • Jing Li,
  • Cheng Fang Wang,
  • Shu Shan Du

DOI
https://doi.org/10.3390/molecules16076060
Journal volume & issue
Vol. 16, no. 7
pp. 6060 – 6067

Abstract

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The screening of several Chinese mangrove plants for insecticidal principles showed that ethanol extract of Ceriops tagal stems and twigs possessed significant feeding deterrent activity against the red flour beetle, Tribolium castaneum (Family: Rhizophoraceae). From the ethanol extract, three feeding deterrent diterpenoids were isolated by bioassay-guided fractionation. The compounds were identified as tagalsin A, B, and H on the basis of their phytochemical and spectral data. Tagalsin A, B, and H exhibited strong feeding deterrent activity against T. castaneum adults with EC50 values of 375.3 ppm, 277.3 ppm, and 285.45 ppm, respectively.

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