PMID: 11925070Apr 2, 2002Paper

Antimicrobial activity of exocrine glandular secretion of Chrysomela larvae

Journal of Chemical Ecology
Jürgen GrossM Hilker

Abstract

The exocrine glandular secretions of leaf beetle larvae of the taxon Chrysomela are well-known defensive devices used against some generalist predators. Salicylaldehyde is the major repellent component of secretions emitted by larvae of Chrysomela vigintipunctata and C. lapponica, which feed on salicin-rich Salicaceae. In this study, we examined whether salicylaldehyde is also active against the entomopathogenic fungus Metarhizium anisopliae. The germination and growth of this fungus was strongly inhibited when salicylaldehyde was applied directly onto the blastospores. The salicylaldehyde concentration of the larval secretions of the tested willow feeding Chrsysomela larvae was much higher than the one necessary to display this antifungal activity. Additionally, salicylaldehyde was shown to reduce germination and growth of M. anisopliae via the gas phase over a distance of 45 mm. Further studies on the antimicrobial activity of the salicylaldehyde-containing secretions of Chrysomela larvae revealed that they act nonspecifically against prokaryotic (Escherichia coli) and eukaryotic cells (Saccharomyces cerevisiae and Trichoplusia ni). All antimicrobial and cytotoxic effects detected proved to be due to salicylaldehyde. The larv...Continue Reading

Citations

Aug 10, 2012·Proceedings. Biological Sciences·René Roberto BodemannAntje Burse
Apr 9, 2008·Die Naturwissenschaften·Inka LusebrinkKarlheinz Seifert
Feb 1, 2008·Journal of Chemical Ecology·Jürgen GrossAndreas Vilcinskas
Mar 9, 2011·Proceedings of the National Academy of Sciences of the United States of America·Roy KirschWilhelm Boland
May 1, 2012·Biological Reviews of the Cambridge Philosophical Society·Michael P SpeedThomas N Sherratt
Oct 5, 2010·Journal of Chemical Ecology·Jürgen GrossAnnette Wensing
Jul 16, 2010·Chembiochem : a European Journal of Chemical Biology·Monika HilkerStefan Schulz
May 29, 2018·Applied Microbiology and Biotechnology·Drion G BouciasNemat O Keyhani

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