Journal of Chemical Ecology

, Volume 16, Issue 1, pp 165–185

Lepidoptera and pyrrolizidine alkaloids Exemplification of complexity in chemical ecology

  • Michael Boppré

DOI: 10.1007/BF01021277

Cite this article as:
Boppré, M. J Chem Ecol (1990) 16: 165. doi:10.1007/BF01021277


Pyrrolizidine alkaloids (PAs) are defensive secondary metabolites found in numerous plant groups. Various insects belonging to different orders have special requirements for these compounds and sequester them from such plants for their own defense and often as pheromone precursors. The fitness of these insects depends on PAs and, in some cases, PAs even act as regulators of androconial organ development. This article discusses selected behavioral, chemical, physiological, and phylogenetic aspects of insect-PA relationships, and raises questions about the complex interactions of the variety of PA-related adaptations as they occur among a diverse array of species. Although many superficial similarities are recognized, few generalizations can yet be drawn. However, insect-PA relationships not only exemplify basic features of chemical ecology but illustrate a multiplicity of aspects and adaptations, which we should expect to find in any thorough study of insect-plant relationship.

Key Words

Pyrrolizidine alkaloids pharmacophagy male pheromones chemical defense Lepidoptera Danainae Arctiidae Heliotropium Senecio Crotalaria 

Copyright information

© Plenum Publishing Corporation 1990

Authors and Affiliations

  • Michael Boppré
    • 1
  1. 1.Forstzoologisches Institut der Universität FreiburgStegen-WittentalGermany

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