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J Chem Ecol

Title:		Responses of herbivore and predatory mites to tomato plants exposed to jasmonic acid seed treatment
Author(s):		Smart LE; Martin JL; Limpalaer M; Bruce TJ; Pickett JA;
Address:		"Department of Biological Chemistry and Crop Protection, Rothamsted Research, Harpenden, Herts, AL 2JQ, UK"
Journal Title:		J Chem Ecol
Year:		2013
Volume:		20130921
Issue:		10
Page Number:		1297 - 1300
DOI:		10.1007/s10886-013-0345-5
ISSN/ISBN:		1573-1561 (Electronic) 0098-0331 (Linking)
Abstract:		"Jasmonic acid (JA) signalling can influence plant defense and the production of plant volatiles that mediate interactions with insects. Here, we tested whether a JA seed treatment could alter direct and indirect defenses. First, oviposition levels of herbivorous mites, Tetranychus urticae, on JA seed-treated and control tomato plants were compared. They were not significantly different on tomato cv. 'Moneymaker', however, there was a significant reduction in oviposition on treated plants in additional experiments with cv. 'Carousel'. Second, responses of predatory mites, Phytoseiulus persimilis, were assessed in a Y-tube olfactometer. Volatiles from JA seed-treated tomato cv. 'Moneymaker' plants were significantly more attractive than volatiles from control plants. Volatiles collected from plants were analysed by GC/MS, and samples from JA seed-treated plants contained more methyl salicylate and (E,E)-4,8,12-trimethyl-1,3,7,11-tridecatetraene (TMTT) than samples from control plants. Our results indicate that JA seed treatment can make tomato plants more attractive to predatory mites, but that direct effects on herbivorous mites are variable and cultivar dependent"
Keywords:		Animals Cyclopentanes/*pharmacology *Herbivory/drug effects Solanum lycopersicum/*drug effects/metabolism/*physiology Mites/drug effects/*physiology Oviposition/drug effects Oxylipins/*pharmacology *Predatory Behavior/drug effects Seeds/*drug effects/meta;
Notes:		"MedlineSmart, Lesley E Martin, Janet L Limpalaer, Marlene Bruce, Toby J A Pickett, John A eng BBS/E/C/00004945/BB_/Biotechnology and Biological Sciences Research Council/United Kingdom BB/G021791/1/BB_/Biotechnology and Biological Sciences Research Council/United Kingdom Research Support, Non-U.S. Gov't 2013/09/24 J Chem Ecol. 2013 Oct; 39(10):1297-300. doi: 10.1007/s10886-013-0345-5. Epub 2013 Sep 21"