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Université de Fribourg

Endophytes and epiphytes from the grapevine leaf microbiome as potential biocontrol agents against phytopathogens

Bruisson, Sébastien ; Zufferey, Mónica ; L’Haridon, Floriane ; Trutmann, Eva ; Anand, Abhishek ; Dutartre, Agnès ; Vrieze, Mout De ; Weisskopf, Laure

In: Frontiers in Microbiology, 2019, vol. 10, p. -

Plants harbor diverse microbial communities that colonize both below-ground and above-ground organs. Some bacterial members of these rhizosphere and phyllosphere microbial communities have been shown to contribute to plant defenses against pathogens. In this study, we characterize the pathogen-inhibiting potential of 78 bacterial isolates retrieved from endophytic and epiphytic communities...

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

Microbial life in the grapevine: what can we expect from the leaf microbiome?

Vionnet, Léo ; Vrieze, Mout De ; Dutartre, Agnès ; Gfeller, Aurélie ; Lüthi, Angelika ; L’Haridon, Floriane ; Weisskopf, Laure

In: OENO One, 2018, vol. 52, no. 3, p. 219–224

Recent studies have shown that plants harbor complex bacterial communities, the so- called “microbiome”. We are only beginning to unravel the origin of these bacterial plant inhabitants, their community structure and their roles, which, in analogy to the gut microbiome, are likely to be of essential nature. The aim of this work was to analyze the abundance and diversity of the cultivable...