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Systemin regulates both systemic and volatile signaling in tomato plants

TitleSystemin regulates both systemic and volatile signaling in tomato plants
Publication TypeArticolo su Rivista peer-reviewed
Year of Publication2007
AuthorsCorrado, Giandomenico, Sasso Raffaele, Pasquariello M., Iodice Luigi, Carretta A., Cascone P., Ariati L., Digilio Maria Cristina, Guerrieri Emilio, and Rao Rosa
JournalJournal of Chemical Ecology
Volume33
Pagination669 - 681
Date Published2007///
KeywordsGene expression, Indirect defense, Plant-insect interaction, Prosystemin, Volatile
Abstract

The prevailing reaction of plants to pest attack is the activation of various defense mechanisms. In tomato, several studies indicate that an 18 amino acid (aa) peptide, called systemin, is a primary signal for the systemic induction of direct resistance against plant-chewing pests, and that the transgenic expression of the prosystemin gene (encoding the 200 aa systemin precursor) activates genes involved in the plant response to herbivores. By using a combination of behavioral, chemical, and gene expression analyses, we report that systemin enhances the production of bioactive volatile compounds, increases plant attractivity towards parasitiod wasps, and activates genes involved in volatile production. Our data imply that systemin is involved in the systemic activation of indirect defense in tomato, and we conclude that a single gene controls the systemic activation of coordinated and associated responses against pests. © 2007 Springer Science+Business Media, LLC.

Notes

Cited By (since 1996): 9Export Date: 23 August 2010Source: Scopus

URLhttp://www.scopus.com/inward/record.url?eid=2-s2.0-33947509573&partnerID=40&md5=ed795ed0ea65aa9822e92caa41e5b8f0
Citation Key153