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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 inter-kingdom volatile signal indole promotes root development by interfering with auxin signalling

Bailly, Aurélien ; Groenhagen, Ulrike ; Schulz, Stefan ; Geisler, Markus ; Eberl, Leo ; Weisskopf, Laure

In: The Plant Journal, 2014, vol. 80, no. 5, p. 758–771

Recently, emission of volatile organic compounds (VOCs) has emerged as a mode of communication between bacteria and plants. Although some bacterial VOCs that promote plant growth have been identified, their underlying mechanism of action is unknown. Here we demonstrate that indole, which was identified using a screen for Arabidopsis growth promotion by VOCs from soil-borne bacteria, is a potent...

Université de Neuchâtel

Proprotein import in chloroplast biogenesis : identification and characterisation of a strong dimerisation mutant of atToc159

Martin, Meryll Michael ; Kessler, Felix (Dir.)

Thèse de doctorat : Université de Neuchâtel, 2011 ; 2243.

The chloroplast is the hallmark organelle of plant having evolved from the endosymbiotic event. Most chloroplast proteins are synthesized as preproteins in the cytosol. The import of these preproteins is mediated by molecular complexes located at the outer and inner membrane of the chloroplast. These complexes are called TOC (Translocon at the Outer envelope of the Chloroplast) and TIC...