Université de Fribourg

The cuticle and plant defense to pathogens

Metraux, Jean-Pierre ; Serrano, Mario ; Torres, Martha ; Coluccia, Fania ; L’Haridon, Floriane

In: Frontiers in Plant Science, 2014, vol. 5, p. 274

The cuticle provides a physical barrier against water loss and protects against irradiation, xenobiotics and pathogens. Components of the cuticle are perceived by invading fungi and activate developmental processes during pathogenesis. In addition, cuticle alterations of various types induce a syndrome of reactions that often results in resistance to necrotrophs. This article reviews the current...

Université de Neuchâtel

Cuticle alkanes of honeybee larvae mediate arrestment of bee parasite Varroa jacobsoni

Rickli, M. ; Diehl, Peter A. ; Guerin, Patrick M.

In: Journal of Chemical Ecology, 1994, vol. 20, no. 9, p. 2437-2453

The ectoparasitic mite Varroa jacobsoni invades worker brood cells of the honeybee Apis mellifera during the last 20 hr before the cells are sealed with a wax cap. Cuticle extracts of 8-day-old worker honeybee larvae occupying such brood cells have an arrestment effect on the mite. The mites run for prolonged periods on the extract, systematically returning onto the stimulus after...

Université de Fribourg

A permeable cuticle in Arabidopsis leads to a strong resistance to Botrytis cinerea

Bessire, Michael ; Chassot, Céline ; Jacquat, Anne-Claude ; Humphry, Matt ; Borel, Sandra ; MacDonald-Comber Petétot, Jean ; Métraux, Jean-Pierre ; Nawrath, Christiane

In: The EMBO Journal, 2007, vol. 26, no. 8, p. 2158–2168

The plant cuticle composed of cutin, a lipid-derived polyester, and cuticular waxes covers the aerial portions of plants and constitutes a hydrophobic extracellular matrix layer that protects plants against environmental stresses. The botrytis-resistant 1 (bre1) mutant of Arabidopsis reveals that a permeable cuticle does not facilitate the entry of fungal pathogens in...