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- Publisher
- Annual Reviews
- Copyright
- Copyright © 2008 by Annual Reviews. All rights reserved
- ISSN
- 1040-2519
- DOI
- 10.1146/annurev.arplant.59.032607.092825
- pmid
- 18031220
- Publisher site
- See Article on Publisher Site
Abstract
Herbivorous insects use diverse feeding strategies to obtain nutrients from their host plants. Rather than acting as passive victims in these interactions, plants respond to herbivory with the production of toxins and defensive proteins that target physiological processes in the insect. Herbivore-challenged plants also emit volatiles that attract insect predators and bolster resistance to future threats. This highly dynamic form of immunity is initiated by the recognition of insect oral secretions and signals from injured plant cells. These initial cues are transmitted within the plant by signal transduction pathways that include calcium ion fluxes, phosphorylation cascades, and, in particular, the jasmonate pathway, which plays a central and conserved role in promoting resistance to a broad spectrum of insects. A detailed understanding of plant immunity to arthropod herbivores will provide new insights into basic mechanisms of chemical communication and plant-animal coevolution and may also facilitate new approaches to crop protection and improvement.
Journal
Annual Review of Plant Biology – Annual Reviews
Published: Jun 2, 2008