Molecular and chemical mechanisms involved in aphid resistance in cultivated tomato

*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...

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Veröffentlicht in:The New phytologist. - 1979. - 187(2010), 4 vom: 01. Sept., Seite 1089-1101
1. Verfasser: Digilio, Maria Cristina (VerfasserIn)
Weitere Verfasser: Corrado, Giandomenico, Sasso, Raffaele, Coppola, Valentina, Iodice, Luigi, Pasquariello, Marianna, Bossi, Simone, Maffei, Massimo E, Coppola, Mariangela, Pennacchio, Francesco, Rao, Rosa, Guerrieri, Emilio
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2010
Zugriff auf das übergeordnete Werk:The New phytologist
Schlagworte:Journal Article Research Support, Non-U.S. Gov't Volatile Organic Compounds
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520 |a *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 
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700 1 |a Corrado, Giandomenico  |e verfasserin  |4 aut 
700 1 |a Sasso, Raffaele  |e verfasserin  |4 aut 
700 1 |a Coppola, Valentina  |e verfasserin  |4 aut 
700 1 |a Iodice, Luigi  |e verfasserin  |4 aut 
700 1 |a Pasquariello, Marianna  |e verfasserin  |4 aut 
700 1 |a Bossi, Simone  |e verfasserin  |4 aut 
700 1 |a Maffei, Massimo E  |e verfasserin  |4 aut 
700 1 |a Coppola, Mariangela  |e verfasserin  |4 aut 
700 1 |a Pennacchio, Francesco  |e verfasserin  |4 aut 
700 1 |a Rao, Rosa  |e verfasserin  |4 aut 
700 1 |a Guerrieri, Emilio  |e verfasserin  |4 aut 
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