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Université de Fribourg

Silica nanoparticles enhance disease resistance in Arabidopsis plants

El-Shetehy, Mohamed ; Moradi, Aboubakr ; Maceroni, Mattia ; Reinhardt, Didier ; Petri-Fink, Alke ; Rothen-Rutishauser, Barbara ; Mauch, Felix ; Schwab, Fabienne

In: Nature Nanotechnology, 2020, p. 1–10

In plants, pathogen attack can induce an immune response known as systemic acquired resistance that protects against a broad spectrum of pathogens. In the search for safer agrochemicals, silica nanoparticles (SiO2 NPs; food additive E551) have recently been proposed as a new tool. However, initial results are controversial, and the molecular mechanisms of SiO2 NP-induced disease resistance...

Université de Fribourg

S-methyl methanethiosulfonate: promising late blight inhibitor or broad range toxin?

Joller, Charlotte ; Vrieze, Mout De ; Moradi, Aboubakr ; Fournier, Claudine ; Chinchilla, Delphine ; L’Haridon, Floriane ; Bruisson, Sebastien ; Weisskopf, Laure

In: Pathogens, 2020, vol. 9, no. 6, p. 496

(1) Background: S-methyl methanethiosulfonate (MMTS), a sulfur containing volatile organic compound produced by plants and bacterial species, has recently been described to be an efficient anti-oomycete agent with promising perspectives for the control of the devastating potato late blight disease caused by Phytophthora infestans. However, earlier work raised questions regarding the putative...

Université de Fribourg

Intra and extracellular journey of the phytohormone salicylic acid

Maruri-López, Israel ; Aviles-Baltazar, Norma Yaniri ; Buchala, Antony J. ; Serrano, Mario

In: Frontiers in Plant Science, 2019, vol. 10, p. -

Salicylic acid (SA) is a plant hormone that has been described to play an essential role in the activation and regulation of multiple responses to biotic and to abiotic stresses. In particular, during plant-microbe interactions, as part of the defense mechanisms, SA is initially accumulated at the local infected tissue and then spread all over the plant to induce systemic acquired resistance...