PLANT VOLATILES

Evolution of plant volatiles manipulation by vectored pathogens

Coordinatore	UNIVERSITE PARIS-SUD    more  Organization address address: RUE GEORGES CLEMENCEAU 15 city: ORSAY postcode: 91405 contact info Titolo: Mr. Nome: Nicolas Cognome: Lecompte Email: send email Telefono: +331 69 15 55 89 Fax: +331 69 15 55 99
Nazionalità Coordinatore	France [FR]
Totale costo	242˙916 €
EC contributo	242˙916 €
Programma	FP7-PEOPLE Specific programme "People" implementing the Seventh Framework Programme of the European Community for research, technological development and demonstration activities (2007 to 2013)
Code Call	FP7-PEOPLE-IOF-2008
Funding Scheme	MC-IOF
Anno di inizio	2009
Periodo (anno-mese-giorno)	2009-09-01   -   2012-12-25

 Partecipanti

#	participant	country	role	EC contrib. [€]
1	UNIVERSITE PARIS-SUD  Organization address address: RUE GEORGES CLEMENCEAU 15 city: ORSAY postcode: 91405 contact info Titolo: Mr. Nome: Nicolas Cognome: Lecompte Email: send email Telefono: +331 69 15 55 89 Fax: +331 69 15 55 99	FR (ORSAY)	coordinator	242˙916.30

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 Obiettivo del progetto (Objective)

'Many important plant diseases are vectored by insects, and the dependence of pathogens and insect herbivores on a common plant host creates the potential for antagonistic and mutualistic interactions that may have large implications for disease transmission. Pathogen-induced effects on plant traits affecting their suitability for herbivores or the cues presented to foraging insects are likely to be central to these interactions. Yet, the ecology and evolution of plant-pathogen-vector interactions is not well understood. A few recent studies have shown that virus-induced plant organic volatiles are attractive to aphid vectors, but broader implications for disease ecology and pathogen evolution have not been investigated. I propose here to explore the ecology of vector-borne viral and bacterial pathogens of the wild gourd Cucurbita pepo subsp. texana. Previous work in this system suggests that infection by an aphid-vectored virus, ZYMV, and a beetle-vectored bacterial pathogen, Erwinia trachephila, are dependent on the selective behaviour of their respective vectors. I will thus explore the effects of pathogen-induced changes in plant volatiles and insect behaviour, and their impact on pathogen transmission. I will examine variation within natural pathogen populations for these effects, to gain a better understanding of their adaptive nature and their consequences in pathogen epidemiology and evolution. I will also develop a second study system, involving the plant Arabidopsis thaliana and a whitefly-vectored virus (CaMV) to extend this valuable model to questions relating to plant-pathogen-vector interactions, which would greatly facilitate the elucidation of underlying mechanisms. The proposed work will be performed jointly at the department of entomology of the Pennsylvania State University, USA, a worldwide leader in the fields of chemical ecology and disease dynamics, and the laboratoire Ecologie, Systématique et Evolution at Université Paris-Sud 11, France.'

Introduzione (Teaser)

Recent research has found that viruses infect plants (viral hosts) and render them attractive to insects (viral vectors) thereby potentially facilitating viral transmission. An EU project is investigating the intricacies of the complex relationships between plants, their viruses, and disease carriers or vectors.