« Previous AbstractMechanisms of optimal defense patterns in Nicotiana attenuata: flowering attenuates herbivory-elicited ethylene and jasmonate signaling    Next AbstractChemical Characterization of Natural Gas Leaking from Abandoned Oil and Gas Wells in Western Pennsylvania »

New Phytol

Title:		Molecular and chemical mechanisms involved in aphid resistance in cultivated tomato
Author(s):		Digilio MC; Corrado G; Sasso R; Coppola V; Iodice L; Pasquariello M; Bossi S; Maffei ME; Coppola M; Pennacchio F; Rao R; Guerrieri E;
Address:		"Dipartimento di Entomologia e Zoologia agraria 'Filippo Silvestri', Universita di Napoli 'Federico II', Via Universita 100, 80055 Portici (NA), Italy. Dipartimento di Scienze del Suolo della Pianta e dell'Ambiente, Universita di Napoli 'Federico II', Via Universita 100, 80055 Portici (NA), Italy. Istituto per la Protezione delle Piante, Consiglio Nazionale delle Ricerche, Via Universita 133, 80055 Portici (NA), Italy. Dipartimento di Biologia Vegetale, Unita di Fisiologia Vegetale, Universita di Torino - Centro della Innovazione, Via Quarello 11/A, 10135 Torino, Italy"
Journal Title:		New Phytol
Year:		2010
Volume:		20100107
Issue:		4
Page Number:		1089 - 1101
DOI:		10.1111/j.1469-8137.2010.03314.x
ISSN/ISBN:		1469-8137 (Electronic) 0028-646X (Linking)
Abstract:		"*An integrated approach has been used to obtain an understanding of the molecular and chemical mechanisms underlying resistance to aphids in cherry-like tomato (Solanum lycopersicum) landraces from the Campania region (southern Italy). The aphid-parasitoid system Macrosiphum euphorbiae-Aphidius ervi was used to describe the levels of resistance against aphids in two tomato accessions (AN5, AN7) exhibiting high yield and quality traits and lacking the tomato Mi gene. *Aphid development and reproduction, flight response by the aphid parasitoid A. ervi, gas chromatography-mass spectrometry headspace analysis of plant volatile organic compounds and transcriptional analysis of aphid responsive genes were performed on selected tomato accessions and on a susceptible commercial variety (M82). *When compared with the cultivated variety, M82, AN5 and AN7 showed a significant reduction of M. euphorbiae fitness, the release of larger amounts of specific volatile organic compounds that are attractive to the aphid parasitoid A. ervi, a constitutively higher level of expression of plant defence genes and differential enhancement of plant indirect resistance induced by aphid feeding. *These results provide new insights on how local selection can offer the possibility of the development of innovative genetic strategies to increase tomato resistance against aphids"
Keywords:		"Animals *Aphids *Gene Expression *Genes, Plant Host-Parasite Interactions/*genetics Solanum lycopersicum/chemistry/*genetics/metabolism *Plant Diseases Plant Immunity/*genetics Volatile Organic Compounds/metabolism;"
Notes:		"MedlineDigilio, Maria Cristina Corrado, Giandomenico Sasso, Raffaele Coppola, Valentina Iodice, Luigi Pasquariello, Marianna Bossi, Simone Maffei, Massimo E Coppola, Mariangela Pennacchio, Francesco Rao, Rosa Guerrieri, Emilio eng Research Support, Non-U.S. Gov't England 2010/06/16 New Phytol. 2010 Sep; 187(4):1089-1101. doi: 10.1111/j.1469-8137.2010.03314.x. Epub 2010 Jan 7"