Azamacrolides: A family of alkaloids from the pupal defensive secretion of a ladybird beetle (Epilachna varivestis)

Athula B. Attygalle, Kevin D. Mccormick, Curtis L. Blankespoor, Thomas Eisner, Jerrold Meinwald

Research output: Contribution to journalArticlepeer-review

61 Scopus citations

Abstract

Defensive droplets from glandular hairs of the pupa of the Mexican bean beetle, Epilachna varivestis, contain a group of structurally novel alkaloids, the azamacrolides. The major constituent of this secretion, epilachnene, is shown to be (5Z)-11-propyl-12-azacyclotetradec-5-en-14-olide. The secretion also contains an epilachnadiene and trace amounts of three closely related components.

Original languageEnglish
Pages (from-to)5204-5208
Number of pages5
JournalProceedings of the National Academy of Sciences of the United States of America
Volume90
Issue number11
DOIs
StatePublished - 1 Jun 1993

Keywords

  • Coccinellidae
  • Insect repellent
  • Insecta
  • Macrolide

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