Université de Fribourg

The novel elicitor AsES triggers a defense response against Botrytis cinerea in Arabidopsis thaliana

Hael-Conrad, V. ; Abou-Mansour, Eliane ; Díaz-Ricci, J.-C. ; Métraux, Jean-Pierre ; Serrano, Mario

In: Plant Science, 2015, vol. 241, p. 120–127

AsES (Acremonium strictum Elicitor and Subtilisin) is a novel extracellular elicitor protein produced by the avirulent isolate SS71 of the opportunist strawberry fungal pathogen A. strictum. Here we describe the activity of AsES in the plant-pathogen system Arabidopsis thaliana–Botrytis cinerea. We show that AsES renders A. thaliana plants resistant to the necrotrophic pathogen B. cinerea, both...

Université de Fribourg

The glutaredoxin ATGRXS13 is required to facilitate Botrytis cinerea infection of Arabidopsis thaliana plants

Camera, Sylvain La ; L’Haridon, Floriane ; Astier, Jérémy ; Zander, Mark ; Abou-Mansour, Eliane ; Page, Gonzague ; Thurow, Corinna ; Wendehenne, David ; Gatz, Christiane ; Métraux, Jean-Pierre ; Lamotte, Olivier

In: The Plant Journal, 2011, vol. 68, no. 3, p. 507–519

Botrytis cinerea is a major pre- and post-harvest necrotrophic pathogen with a broad host range that causes substantial crop losses. The plant hormone jasmonic acid (JA) is involved in the basal resistance against this fungus. Despite basal resistance, virulent strains of B. cinerea can cause disease on Arabidopsis thaliana and virulent pathogens can interfere with the metabolism of the host in a...

Université de Fribourg

Cuticular defects lead to full immunity to a major plant pathogen

Chassot, Céline ; Nawrath, Christiane ; Métraux, Jean-Pierre

In: The Plant Journal, 2007, vol. 49, no. 6, p. 972-980

In addition to its role as a barrier, the cuticle is also a source of signals perceived by invading fungi. Cuticular breakdown products have been shown previously to be potent inducers of cutinase or developmental processes in fungal pathogens. Here the question was addressed as to whether plants themselves can perceive modifications of the cuticle. This was studied using Arabidopsis...