Université de Fribourg

Effect of sulfur deficiency on the resistance of oilseed rape to fungal pathogens and expression profiling of the glutathione S-transferase family of "Arabidopsis thaliana"

Dubuis, Pierre-Henri ; Mauch, Felix (Dir.)

Thèse de doctorat : Université de Fribourg, 2004 ; no 1442.

The reduction of S02 atmospheric pollution in the early nineties caused sulfur-deficiency problems in the agriculture of northern Europe. Sulfur is essential for plant development and sulfur containing compounds such as sulfur rich antifungal proteins, phytoalexins and glucosinolates play an important role in plant defense against pathogens. Sulfur starved Brassica napus with no visible symptoms...

Université de Fribourg

Sulphur deficiency causes a reduction in antimicrobial potential and leads to increased disease susceptibility of oilseed rape

Dubuis, Pierre-Henri ; Marazzi, Cristina ; Städler, Erich ; Mauch, Felix

In: Journal of Phytopathology, 2005, vol. 153, p. 27-36

The reduction of atmospheric sulphur dioxide pollution is causing increasing problems of sulphur deficiency in sulphur-demanding crop plants in northern Europe. Elemental sulphur and many sulphur containing compounds such as cysteine-rich antifungal proteins, glucosinolates (GSL) and phytoalexins play important roles in plant disease resistance. The aim of this work was to analyse the effect of...

Université de Fribourg

Crosstalk and differential response to abiotic and biotic stressors reflected at the transcriptional level of effector genes from secondary metabolism

Glombitza, Sabine ; Dubuis, Pierre-henri ; Thulke, Oliver ; Welzl, Gerhard ; Bovet, Lucien ; Götz, Michael ; Affenzeller, Matthias ; Geist, Birgit ; Hehn, Alain ; Asnaghi, Carole ; Ernst, Dieter ; Seidlitz, Harald ; Gundlach, Heidrun ; Mayer, Klaus ; Martinoia, Enrico ; Werck-reichhart, Daniele ; Mauch, Felix ; Schäffner, Anton

In: Plant Molecular Biology, 2005, vol. 54, p. 817-835

Plant secondary metabolism significantly contributes to defensive measures against adverse abiotic and biotic cues. To investigate stress-induced, transcriptional alterations of underlying effector gene families, which encode enzymes acting consecutively in secondary metabolism and defense reactions, a DNA array (MetArray) harboring gene-specific probes was established. It comprised complete sets...

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