Allomonal and hepatotoxic effects following methyl eugenol consumption in Bactrocera papayae male against Gekko monarchus

Wee Suk Ling, Keng Hong Tan

Research output: Contribution to journalArticle

21 Citations (Scopus)

Abstract

Methyl eugenol (ME), is converted into two major phenylpropanoids, 2-allyl-4,5-dimethoxyphenol and trans-coniferyl alcohol, following consumption by the male fruit fly Bactrocera papayae. Chemical analysis of wild male B. papayae rectal glands, where the compounds are sequestered, revealed the presence of ME metabolites in varying quantities. These phenylpropanoids are shown to be involved in the fruit fly defense both in no-choice and choice feeding tests against the Malayan spiny gecko, Gekko monarchus. After being acclimatized to feeding on fruit flies, geckos consumed significantly fewer ME-fed male flies than controls that consumed all the ME-deprived male flies offered throughout a two-week period. Diagnosis of dissected livers from geckos that consumed ME-fed male flies revealed various abnormalities. These included discoloration and hardening of liver tissue, whitening of the gallbladder, or presence of tumor-like growths in all geckos that consumed ME-fed male flies. Control geckos fed on ME-deprived male flies had healthy livers. When given an alternative prey, geckos preferred to eat untreated house flies, Musca domestica to avoid preying on ME-fed fruit flies.

Original languageEnglish
Pages (from-to)953-964
Number of pages12
JournalJournal of Chemical Ecology
Volume27
Issue number5
DOIs
Publication statusPublished - 2001
Externally publishedYes

Fingerprint

methyleugenol
Bactrocera papayae
Tephritidae
methyl eugenol
Diptera
Gekkonidae
Lizards
fruit flies
Fruits
Liver
Fruit
fruit
phenylpropanoids
Musca domestica
liver
coniferyl alcohol
choice feeding
Discoloration
Salt Gland
consumption

Keywords

  • 2-allyl-4,5-dimethoxyphenol
  • Allomone
  • Bactrocera papayae
  • Gekko monarchus
  • Hepatotoxicity
  • Methyl eugenol
  • Trans-coniferyl alcohol

ASJC Scopus subject areas

  • Ecology
  • Biochemistry, Genetics and Molecular Biology(all)
  • Biochemistry

Cite this

Allomonal and hepatotoxic effects following methyl eugenol consumption in Bactrocera papayae male against Gekko monarchus. / Suk Ling, Wee; Tan, Keng Hong.

In: Journal of Chemical Ecology, Vol. 27, No. 5, 2001, p. 953-964.

Research output: Contribution to journalArticle

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