Growth inhibitory polyacetylenes from galls of Hedera rhombea Bean

Sayumi Yamazoe, Koji Hasegawa, Kiyotake Suenaga, Hideyuki Shigemori

Research output: Contribution to journalArticlepeer-review

10 Citations (Scopus)


Plant growth inhibitory polyacetylenes have been isolated from the insect galls on flower buds of Hedera rhombea Bean (Araliaceae) formed by the ivy flower bud gall midge, Asphondylia sp. (Cecidomyiidae), and their structures elucidated by spectroscopic and chemical means. The EC50 values for roots/hypocotyls growth of cress (Lepidium sativum L.) seedlings were 7.0×10-5/8.0×10-5 M for (Z)-8-acetoxy-1,2- epoxy-3-oxoheptadeca-9-ene-4,6-diyne, 9.5×10-5/9.0×10-5 M for (Z)-8-acetoxy-3-oxoheptadeca-1,9-diene-4,6-diyne, 2.5×10-5/5. 5×10-6 M for (Z)-8-acetoxy-1-methoxy-3-oxoheptadeca-9-ene-4,6-diyne, and 7.5×10-5/2.0×10-6 M for falcarindiol, respectively. On the other hand, 8-acetoxyfalcarinol exhibited lower inhibition on roots and hypocotyls growth. Among these compounds, (Z)-8-acetoxy-1-methoxy- 3-oxoheptadeca-9-ene-4,6-diyne exhibited the strongest inhibitiory effect on root growth of cress seedlings, whereas against hypocotyl growth of cress seedlings, falcarindiol showed the strongest inhibition.

Original languageEnglish
Pages (from-to)87-94
Number of pages8
JournalNatural product communications
Issue number2
Publication statusPublished - 2006 Jan 1
Externally publishedYes


  • (Z)-8-acetoxy-1 2-epoxy-3-oxoheptadeca -9-ene-4 6-diyne
  • (Z)-8-acetoxy-1-methoxy-3-oxoheptadeca-9-ene-4 6-diyne
  • (Z)-8-acetoxy-3- oxoheptadeca-1 9-diene-4 6-diyne
  • Araliaceae
  • Gall
  • Hedera rhombea
  • Plant growth inhibitor
  • Polyacetylene

ASJC Scopus subject areas

  • Pharmacology
  • Plant Science
  • Drug Discovery
  • Complementary and alternative medicine


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