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J Chem Ecol. 1994 Jul;20(7):1657-65. doi: 10.1007/BF02059887.

Plant response to eggs vs. Host marking pheromone as factors inhibiting oviposition byPieris brassicae.

Journal of chemical ecology

A Blaakmeer, D Hagenbeek, T A van Beek, A de Groot, L M Schoonhoven, J J van Loon

Affiliations

  1. Department of Organic Chemistry, Phytochemical Section, Wageningen Agricultural University, Dreijenplein 8, NL-6703 HB, Wageningen, The Netherlands.

PMID: 24242658 DOI: 10.1007/BF02059887

Abstract

Pieris brassicae L. butterflies secrete miriamides onto their eggs. These avenanthramide alkaloids are strong oviposition deterrents when sprayed onto a cabbage leaf. However, these compounds could not be detected in cabbage leaves from which egg batches had been removed two days after deposition and that still showed oviposition deterrency. It was concluded that the miriamides were not directly responsible for the avoidance by females of occupied leaves while searching for an oviposition site. Evidence was obtained that cabbage leaves themselves produce oviposition deterrents in response to egg batches. Fractions containing potent oviposition deterrents could be isolated from surface extracts of leaves from which previously laid egg batches had been removed. The term host marking pheromone that was used previously is not applicable in this case.

References

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