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J Chem Ecol

Title:		Essential compounds in herbivore-induced plant volatiles that attract the predatory mite Neoseiulus womersleyi
Author(s):		Ishiwari H; Suzuki T; Maeda T;
Address:		"Graduate School of Life and Environmental Sciences, University of Tsukuba, 1-1-1 Ten-noudai, Tsukuba, Ibaraki 305-8572, Japan"
Journal Title:		J Chem Ecol
Year:		2007
Volume:		20070905
Issue:		9
Page Number:		1670 - 1681
DOI:		10.1007/s10886-007-9344-8
ISSN/ISBN:		0098-0331 (Print) 0098-0331 (Linking)
Abstract:		"Carnivorous arthropods use volatile infochemicals emitted from prey-infested plants in their foraging behavior. Although several volatile components are common among plant species, the compositions differ among prey-plant complexes. Studies showed that the predatory mite Neoseiulus womersleyi is attracted only to previously experienced plant volatiles. In this study, we identified the attractant components in prey-induced plant volatiles of two prey-plant complexes. N. womersleyi reared on Tetranychus kanzawai-infested tea leaves showed significant preference for a mixture of three synthetic compounds [mimics of the T. kanzawai-induced tea leaves volatiles: (E)-beta-ocimene, (E)-4,8-dimethyl-1,3,7-nonatriene (DMNT), and (E,E)-alpha-farnesene] at a level comparable to that for T. kanzawai-induced tea plant volatiles. However, mixtures lacking any of these compounds did not attract the predatory mites. Likewise, N. womersleyi reared on T. urticae-infested kidney bean plants showed a significant preference for a mixture of four synthetic compounds [mimics of the T. urticae-induced kidney bean volatiles: DMNT, methyl salicylate (MeSA), beta-caryophyllene, and (E,E)-4,8,12-trimethyl-1,3,7,11-tridecatetraene] at a level comparable to that for T. urticae-induced kidney bean volatiles. The absence of any of the four compounds resulted in no attraction. These results indicate that N. womersleyi can use at least four volatile components to identify prey-infested plants"
Keywords:		Alkenes/metabolism/pharmacology Animals Camellia/chemistry/*physiology Mites/*drug effects/physiology Odorants Phaseolus/*physiology Pheromones/metabolism/*pharmacology Plant Leaves/metabolism Predatory Behavior/*drug effects Salicylates/metabolism/pharma;
Notes:		"MedlineIshiwari, Hayato Suzuki, Takahisa Maeda, Taro eng Research Support, Non-U.S. Gov't 2007/09/06 J Chem Ecol. 2007 Sep; 33(9):1670-81. doi: 10.1007/s10886-007-9344-8. Epub 2007 Sep 5"