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Science

Title:		Defensive function of herbivore-induced plant volatile emissions in nature
Author(s):		Kessler A; Baldwin IT;
Address:		"Department of Molecular Ecology, Max-Planck-Institute for Chemical Ecology, Jena 07745, Germany"
Journal Title:		Science
Year:		2001
Volume:		291
Issue:		5511
Page Number:		2141 - 2144
DOI:		10.1126/science.291.5511.2141
ISSN/ISBN:		0036-8075 (Print) 0036-8075 (Linking)
Abstract:		"Herbivore attack is known to increase the emission of volatiles, which attract predators to herbivore-damaged plants in the laboratory and agricultural systems. We quantified volatile emissions from Nicotiana attenuata plants growing in natural populations during attack by three species of leaf-feeding herbivores and mimicked the release of five commonly emitted volatiles individually. Three compounds (cis-3-hexen-1-ol, linalool, and cis-alpha-bergamotene) increased egg predation rates by a generalist predator; linalool and the complete blend decreased lepidopteran oviposition rates. As a consequence, a plant could reduce the number of herbivores by more than 90% by releasing volatiles. These results confirm that indirect defenses can operate in nature"
Keywords:		Acyclic Monoterpenes Animals Bridged Bicyclo Compounds/metabolism/pharmacology Coleoptera/physiology Female Heteroptera/physiology Hexanols/metabolism/pharmacology Host-Parasite Interactions Insecta/*physiology Manduca/physiology *Monoterpenes Organic Che;
Notes:		"MedlineKessler, A Baldwin, I T eng Research Support, Non-U.S. Gov't 2001/03/17 Science. 2001 Mar 16; 291(5511):2141-4. doi: 10.1126/science.291.5511.2141"