Université de Fribourg

The innate immune signaling system as a regulator of disease resistance and induced systemic resistance activity against Verticillium dahliae

Gkizi, Danai ; Lehmann, Silke ; L’Haridon, Floriane ; Serrano, Mario ; Paplomatas, Epaminondas J. ; Métraux, Jean-Pierre ; Tjamos, Sotirios E.

In: Molecular Plant-Microbe Interactions, 2016, vol. 29, no. 4, p. 313–323

In the last decades, the plant innate immune responses against pathogens have been extensively studied, while biocontrol interactions between soilborne fungal pathogens and their hosts have received much less attention. Treatment of Arabidopsis thaliana with the nonpathogenic bacterium Paenibacillus alvei K165 was shown previously to protect against Verticillium dahliae by triggering induced...

Université de Fribourg

Perception of soft mechanical stress in Arabidopsis leaves activates disease resistance

Benikhlef, Lehcen ; L’Haridon, Floriane ; Abou-Mansour, Eliane ; Serrano, Mario ; Binda, Matteo ; Costa, Alex ; Lehmann, Silke ; Métraux, Jean-Pierre

In: BMC Plant Biology, 2013, vol. 13, no. 1, p. 133

Background: in a previous study we have shown that wounding of Arabidopsis thaliana leaves induces a strong and transient immunity to Botrytis cinerea, the causal agent of grey mould. Reactive oxygen species (ROS) are formed within minutes after wounding and are required for wound–induced resistance to B. cinerea.Results: in this study, we have further explored ROS and resistance to B. cinerea...

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...