Université de Fribourg

Vitis methods to understand and develop strategies for diagnosis and sustainable control of grapevine trunk diseases

Reis, P. ; Pierron, R. ; Larignon, P. ; Lecomte, P. ; Abou-Mansour, Eliane ; Farine, S. ; Bertsch, C. ; Jacques, A. ; Trotel-Aziz, P. ; Rego, C. ; Fontaine, F.

In: Phytopathology, 2019, vol. 109, no. 6, p. 916–931

Vitis vinifera is affected by many diseases every year, depending on causal agents, susceptibility of cultivars, and climate region. Some are caused by a single agent, such as gray mold caused by Botrytis cinerea or powdery mildew caused by Erysiphe necator. Others result from the actions of a complex of pathogens such as grapevine trunk diseases (GTDs). GTDs are presently among the most...

Université de Fribourg

Extracellular compounds produced by fungi associated with Botryosphaeria dieback induce differential defence gene expression patterns and necrosis in Vitis vinifera cv. Chardonnay cells

Ramírez-Suero, M. ; Bénard-Gellon, M. ; Chong, J. ; Laloue, H. ; Stempien, E. ; Abou-Mansour, Eliane ; Fontaine, F. ; Larignon, Philippe ; Mazet-Kieffer, F. ; Farine, S. ; Bertsch, C.

In: Protoplasma, 2014, p. 1–10

Three major grapevine trunk diseases, esca, botryosphaeria dieback and eutypa dieback, pose important economic problems for vineyards worldwide, and currently, no efficient treatment is available to control these diseases. The different fungi associated with grapevine trunk diseases can be isolated in the necrotic wood, but not in the symptomatic leaves. Other factors seem to be responsible for...

Université de Fribourg

Grapevine trunk diseases: complex and still poorly understood

Bertsch, C. ; Ramírez-Suero, M. ; Magnin-Robert, M. ; Larignon, Philippe ; Chong, J. ; Abou-Mansour, Eliane ; Spagnolo, A. ; Clément, C. ; Fontaine, F.

In: Plant Pathology, 2013, vol. 62, no. 2, p. 243–265

This review presents an overview of eutypa dieback, esca and botryosphaeria dieback, the predominant grapevine trunk diseases worldwide. It covers their symptomatologies in the trunk, leaves and berries; the characteristics of the different fungal species associated with them; and host–pathogen interactions. Here, the host–pathogen relationship is defined at the cytological, physiological and...