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Université de Fribourg

Reactive oxygen species and plant resistance to fungal pathogens

Lehmann, Silke ; Serrano, Mario ; L’Haridon, Floriane ; Tjamos, Sotirios E. ; Metraux, Jean-Pierre

In: Phytochemistry, 2015, vol. 112, p. 54–62

Reactive oxygen species (ROS) have been studied for their role in plant development as well as in plant immunity. ROS were consistently observed to accumulate in the plant after the perception of pathogens and microbes and over the years, ROS were postulated to be an integral part of the defence response of the plant. In this article we will focus on recent findings about ROS involved in the...

Université de Neuchâtel

Belowground Chemical Signaling in Maize: When Simplicity Rhymes with Efficiency

Hiltpold, Ivan ; Turlings, Ted C. J.

In: Journal of Chemical Ecology, 2008, vol. 34, no. 5, p. 628-635

Maize roots respond to feeding by larvae of the beetle Diabrotica virgifera virgifera by releasing (E)-β-caryophyllene. This sesquiterpene, which is not found in healthy maize roots, attracts the entomopathogenic nematode Heterorhabditis megidis. In sharp contrast to the emission of virtually only this single compound by damaged roots, maize leaves emit a blend of numerous...