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Originally published in Science Express on 1 July 2004
Science 30 July 2004:
Vol. 305. no. 5684, pp. 665 - 668
DOI: 10.1126/science.1096931
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Reports

Silencing the Jasmonate Cascade: Induced Plant Defenses and Insect Populations

André Kessler, Rayko Halitschke, Ian T. Baldwin*

We transformed the native tobacco, Nicotiana attenuata, to silence its lipoxygenase, hydroperoxide lyase, and allene oxide synthase genes in order to inhibit oxylipin signaling, known to mediate the plant's direct and indirect defenses. When planted into native habitats, lipoxygenase-deficient plants were more vulnerable to N. attenuata's adapted herbivores but also attracted novel herbivore species, which fed and reproduced successfully. In addition to highlighting the value of genetically silencing plants to study ecological interactions in nature, these results show that lipoxygenase-dependent signaling determines host selection for opportunistic herbivores and that induced defenses influence herbivore community composition.

Department of Molecular Ecology, Max-Planck-Institute for Chemical Ecology, Hans-Knöll-Strasse 8, Jena 07745, Germany.

* To whom correspondence should be addressed. E-mail: baldwin{at}ice.mpg.de

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THIS ARTICLE HAS BEEN CITED BY OTHER ARTICLES:
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Interplay between Ecological Communities and Evolution: Review of Feedbacks from Microevolutionary to Macroevolutionary Scales.
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Anthropogenic increase in carbon dioxide compromises plant defense against invasive insects.
J. A. Zavala, C. L. Casteel, E. H. DeLucia, and M. R. Berenbaum (2008)
PNAS 105, 5129-5133
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A. Mosblech, S. Konig, I. Stenzel, P. Grzeganek, I. Feussner, and I. Heilmann (2008)
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Ecological Genomics of Plant-Insect Interactions: From Gene to Community.
S.-J. Zheng and M. Dicke (2008)
Plant Physiology 146, 812-817
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New Weapons and a Rapid Response against Insect Attack.
J. Browse and G. A. Howe (2008)
Plant Physiology 146, 832-838
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Why Does Herbivore Attack Reconfigure Primary Metabolism?.
J. Schwachtje and I. T. Baldwin (2008)
Plant Physiology 146, 845-851
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Arthropod-Inducible Proteins: Broad Spectrum Defenses against Multiple Herbivores.
K. Zhu-Salzman, D. S. Luthe, and G. W. Felton (2008)
Plant Physiology 146, 852-858
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Silencing Threonine Deaminase and JAR4 in Nicotiana attenuata Impairs Jasmonic Acid-Isoleucine-Mediated Defenses against Manduca sexta.
J.-H. Kang, L. Wang, A. Giri, and I. T. Baldwin (2006)
PLANT CELL 18, 3303-3320
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SNF1-related kinases allow plants to tolerate herbivory by allocating carbon to roots.
J. Schwachtje, P. E. H. Minchin, S. Jahnke, J. T. van Dongen, U. Schittko, and I. T. Baldwin (2006)
PNAS 103, 12935-12940
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From The Cover: Jasmonate-inducible plant enzymes degrade essential amino acids in the herbivore midgut.
H. Chen, C. G. Wilkerson, J. A. Kuchar, B. S. Phinney, and G. A. Howe (2005)
PNAS 102, 19237-19242
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In Situ Modification of Herbivore-Induced Plant Odors: A Novel Approach to Study the Attractiveness of Volatile Organic Compounds to Parasitic Wasps.
M. D'Alessandro and T. C.J. Turlings (2005)
Chem Senses 30, 739-753
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Genetic Engineering of Terpenoid Metabolism Attracts Bodyguards to Arabidopsis.
I. F. Kappers, A. Aharoni, T. W. J. M. van Herpen, L. L. P. Luckerhoff, M. Dicke, and H. J. Bouwmeester (2005)
Science 309, 2070-2072
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Keeping the Leaves Green Above Us.
A. Gfeller and E. E. Farmer (2004)
Science 306, 1515-1516
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