Université de Neuchâtel

Restoring a maize root signal that attracts insect-killing nematodes to control a major pest

Degenhardt, Jörg ; Hiltpold, Ivan ; Köllner, Tobias G. ; Frey, Monika ; Gierl, Alfons ; Gershenzon, Jonathan ; Hibbard, Bruce E. ; Ellersieck, Mark R. ; Turlings, Ted C. J.

In: Proceedings of the National Academy of Sciences, 2009, vol. 106, no. 32, p. 13213-13218

When attacked by herbivorous insects, plants emit volatile compounds that attract natural enemies of the insects. It has been proposed that these volatile signals can be manipulated to improve crop protection. Here, we demonstrate the full potential of this strategy by restoring the emission of a specific belowground signal emitted by insect-damaged maize roots. The western corn rootworm induces...

Université de Neuchâtel

Manipulation of tritrophic interactions : a key for belowground biological control ?

Hiltpold, Ivan ; Turlings, T.C.J. (Dir.)

Thèse de doctorat : Université de Neuchâtel, 2008 ; Th. 2073.

In response to attack by phytophagous insects, plants produce volatile organic compounds that serve as cues for natural enemies of the herbivore to locate their potential host or prey. Such tritrophic interactions are well understood aboveground. Recently, it has become evident that such interactions also occur belowground. Among the compounds that are involved in belowground tritrophic...