A Heliothis zea Antifeedant from the Abundant Birchbark Triterpene Betulin

Fulgentius Nelson Lugemwa, Fu Yung Huang, Michael D. Bentley, Michael J. Mendel, A. Randall Alford

Research output: Contribution to journalArticle

50 Citations (Scopus)

Abstract

Four triterpenoids bearing α,β-unsaturated A-ring functionality have been prepared from betulin, an abundant and readily isolated triterpene found in the bark of birch (Betula spp.). These compounds were evaluated as antifeedants in laboratory leaf-disk choice assays against bollworm larvae, Heliothis zea. One triterpenoid, 19(β,28-epoxy-2-(β-D-glucopyranosyloxy)-18α-olean-l-en-3-one (VIII), was found to display high antifeedant activity.

Original languageEnglish (US)
Pages (from-to)493-496
Number of pages4
JournalJournal of Agricultural and Food Chemistry
Volume38
Issue number2
DOIs
StatePublished - Jan 1 1990

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Bearings (structural)
betulin
Betula
Triterpenes
antifeedants
Helicoverpa zea
triterpenoids
Zea mays
Assays
Larva
antifeeding activity
epoxides
bark
larvae
assays
leaves

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Agricultural and Biological Sciences(all)

Cite this

Lugemwa, Fulgentius Nelson ; Huang, Fu Yung ; Bentley, Michael D. ; Mendel, Michael J. ; Alford, A. Randall. / A Heliothis zea Antifeedant from the Abundant Birchbark Triterpene Betulin. In: Journal of Agricultural and Food Chemistry. 1990 ; Vol. 38, No. 2. pp. 493-496.
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A Heliothis zea Antifeedant from the Abundant Birchbark Triterpene Betulin. / Lugemwa, Fulgentius Nelson; Huang, Fu Yung; Bentley, Michael D.; Mendel, Michael J.; Alford, A. Randall.

In: Journal of Agricultural and Food Chemistry, Vol. 38, No. 2, 01.01.1990, p. 493-496.

Research output: Contribution to journalArticle

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