Responses of herbivore and predatory mites to tomato plants exposed to jasmonic acid seed treatment

Smart, Lesley E., Martin, Janet L., Limpalaër, Marlène, Bruce, Toby J. A. and Pickett, John A. ORCID: https://orcid.org/0000-0002-8386-3770 2013. Responses of herbivore and predatory mites to tomato plants exposed to jasmonic acid seed treatment. Journal of Chemical Ecology 39 (10) , pp. 1297-1300. 10.1007/s10886-013-0345-5

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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.

Item Type:	Article
Date Type:	Publication
Status:	Published
Schools:	Schools > Chemistry
Publisher:	Springer
ISSN:	0098-0331
Date of Acceptance:	30 August 2013
Last Modified:	03 Feb 2026 10:00
URI:	https://orca.cardiff.ac.uk/id/eprint/184329

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