Crutzen, François
[UCL]
Moreau, Virginie
[UCL]
Francis, Frédéric
[University of Liège]
Bragard, Claude
[UCL]
The potyvirus Potato virus Y (PVY) is transmitted to potatoes in a nonpersistent manner by aphids. E-β-Farnesene (EBF) is a largely interspecific aphid alarm pheromone which, depending on multiple factors, might have an impact on aphids feeding, winging, moving or escaping behaviors. In addition, predators and parasitoids may also use EBF to find aphids. With the view of developing a biocontrol method for PVY infestations on potatoes, we assessed the impact of EBF on the virus propagation in a field trial carried out in 2013. Potatoes cv. Bintje was chosen as susceptible to PVY. To ensure both virus and vector pressure, PVY was inoculated on 11% of the plants and aphids (Myzus persicae) were introduced in the plots. Potato leaves were sampled at four collection dates during the growing season and stored at -20°C before RNA extractions and quantitative RT-PCR were performed to determine the PVY infection rates in the potato plots depending on whether EBF was released or not.


Bibliographic reference |
Crutzen, François ; Moreau, Virginie ; Francis, Frédéric ; Bragard, Claude. The alarm pheromone E-β-Farnesene as biocontrol semiochemical to reduce the propagation of Potato virus Y in potato fields.19th triennal conference of the European Association of Potato Research (Bruxelles, du 06/07/2016 au 11/07/2016). |
Permanent URL |
http://hdl.handle.net/2078.1/177031 |