Isoprene emissions influence herbivore feeding decisions

Laothawornkitkul, Jullada, Paul, Nigel D., Vickers, Claudia E., Possell, Malcolm, Taylor, Jane E., Mullineaux, Philip M. and Hewitt, C. Nicholas (2008) Isoprene emissions influence herbivore feeding decisions. Plant, Cell and Environment, 31 10: 1410-1415. doi:10.1111/j.1365-3040.2008.01849.x

Author Laothawornkitkul, Jullada
Paul, Nigel D.
Vickers, Claudia E.
Possell, Malcolm
Taylor, Jane E.
Mullineaux, Philip M.
Hewitt, C. Nicholas
Title Isoprene emissions influence herbivore feeding decisions
Journal name Plant, Cell and Environment   Check publisher's open access policy
ISSN 0140-7791
Publication date 2008-10
Year available 2008
Sub-type Article (original research)
DOI 10.1111/j.1365-3040.2008.01849.x
Volume 31
Issue 10
Start page 1410
End page 1415
Total pages 6
Place of publication Oxford, U.K.
Publisher Blackwell
Language eng
Subject 10 Technology
1007 Nanotechnology
06 Biological Sciences
0607 Plant Biology
Formatted abstract
Isoprene (C5H8, 2-methyl 1,3-butadiene) is synthesized and emitted by many, but not all, plants. Unlike other related volatile organic compounds (monoterpenes and sesquiterpenes), isoprene has not been shown to mediate plant–herbivore interactions. Here, for the first time, we show, in feeding choice tests using isoprene-emitting transgenic tobacco plants (Nicotiana tabacum cv. Samsun) and non-emitting azygous control plants, that isoprene deters Manduca sexta caterpillars from feeding. This avoidance behaviour was confirmed using an artificial (isoprene-emitting and non-emitting control) diet. Both in vivo and in vitro experiments showed that isoprene can activate feeding avoidance behaviour in this system with a dose–response effect on caterpillar behaviour and an isoprene emission threshold level of <6 nmol m−2 s−1.
© 2008 The Authors. Journal compilation © 2008 Blackwell Publishing Ltd
Keyword Avoidance
Dose response
Tobacco hornworm
Transgenic tobacco
Q-Index Code C1
Q-Index Status Provisional Code

Document type: Journal Article
Sub-type: Article (original research)
Collections: Excellence in Research Australia (ERA) - Collection
Centre for Nanotechnology and Biomaterials Publications
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Citation counts: TR Web of Science Citation Count  Cited 52 times in Thomson Reuters Web of Science Article | Citations
Scopus Citation Count Cited 60 times in Scopus Article | Citations
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Created: Fri, 18 Dec 2009, 12:07:11 EST by Macushla Boyle on behalf of Faculty of Science