LAOTHAWORNKITKUL, JULLADA and PAUL, NIGEL D and VICKERS, CLAUDIA E and POSSELL, MALCOLM and TAYLOR, JANE E and MULLINEAUX, PHILIP M and HEWITT, C NICHOLAS (2008) Isoprene emissions influence herbivore feeding decisions. Plant, Cell & Environment, 31 (10). pp. 1410-1415. DOI https://doi.org/10.1111/j.1365-3040.2008.01849.x
LAOTHAWORNKITKUL, JULLADA and PAUL, NIGEL D and VICKERS, CLAUDIA E and POSSELL, MALCOLM and TAYLOR, JANE E and MULLINEAUX, PHILIP M and HEWITT, C NICHOLAS (2008) Isoprene emissions influence herbivore feeding decisions. Plant, Cell & Environment, 31 (10). pp. 1410-1415. DOI https://doi.org/10.1111/j.1365-3040.2008.01849.x
LAOTHAWORNKITKUL, JULLADA and PAUL, NIGEL D and VICKERS, CLAUDIA E and POSSELL, MALCOLM and TAYLOR, JANE E and MULLINEAUX, PHILIP M and HEWITT, C NICHOLAS (2008) Isoprene emissions influence herbivore feeding decisions. Plant, Cell & Environment, 31 (10). pp. 1410-1415. DOI https://doi.org/10.1111/j.1365-3040.2008.01849.x
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.
Item Type: | Article |
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Uncontrolled Keywords: | avoidance; dose response; herbivory; threshold; tobacco hornworm; transgenic tobacco |
Subjects: | Q Science > QH Natural history > QH301 Biology |
Divisions: | Faculty of Science and Health Faculty of Science and Health > Life Sciences, School of |
SWORD Depositor: | Unnamed user with email elements@essex.ac.uk |
Depositing User: | Unnamed user with email elements@essex.ac.uk |
Date Deposited: | 06 Oct 2011 14:26 |
Last Modified: | 18 Aug 2022 10:57 |
URI: | http://repository.essex.ac.uk/id/eprint/887 |