Affiner les résultats

Contribution of hydrogen cyanide to the antagonistic activity of Pseudomonas strains against Phytophthora infestans

Anand, Abhishek ; Chinchilla, Delphine ; Tan, Christopher ; Mène-Saffrané, Laurent ; L’Haridon, Floriane ; Weisskopf, Laure

In: Microorganisms, 2020, vol. 8, no. 8, p. 1144

Plants face many biotic and abiotic challenges in nature; one of them is attack by disease-causing microbes. Phytophthora infestans, the causal agent of late blight is one of the most prominent pathogens of the potato responsible for multi-billion-dollar losses every year. We have previously reported that potato-associated Pseudomonas strains inhibited P. infestans at various developmental...

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...

Control of pathogenic PAC strains by non-pathogenic PAC strains in planta does not correlate with higher competitiveness of non-pathogenic PAC strains ex planta

Hugentobler, Ivo ; Reininger, Vanessa ; Sieber, Thomas

In: Mycological Progress, 2014, vol. 13, no. 4, p. 1241-1247

Bacillus subtilis PTA-271 counteracts Botryosphaeria dieback in grapevine, triggering immune responses and detoxification of fungal phytotoxins

Trotel-Aziz, Patricia ; Abou-Mansour, Eliane ; Courteaux, Barbara ; Rabenoelina, Fanja ; Clément, Christophe ; Fontaine, Florence ; Aziz, Aziz

In: Frontiers in Plant Science, 2019, vol. 10, p. -

Plant pathogens have evolved various strategies to enter hosts and cause diseases. Particularly Neofusicoccum parvum, a member of Botryosphaeria dieback consortium, can secrete the phytotoxins (-)-terremutin and (R)-mellein during grapevine colonization. The contribution of phytotoxins to Botryosphaeria dieback symptoms still remains unknown. Moreover, there are currently no efficient control...

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...

Microsatellite-Based Quantification Method to Estimate Biomass of Endophytic Phialocephala Species in Strain Mixtures

Reininger, Vanessa ; Grünig, Christoph ; Sieber, Thomas

In: Microbial Ecology, 2011, vol. 61, no. 3, p. 676-683

Relationship between aggressiveness of Stagonospora sp. isolates on field and hedge bindweeds, and in vitro production of fungal metabolites cercosporin, elsinochrome A and leptosphaerodione

Ahonsi, Monday ; Maurhofer, Monika ; Boss, Désirée ; Défago, Geneviève

In: European Journal of Plant Pathology, 2005, vol. 111, no. 3, p. 203-215

Degradation of pathogen quorum-sensing molecules by soil bacteria: a preventive and curative biological control mechanism

Molina, Lázaro ; Constantinescu, Florica ; Michel, Laurent ; Reimmann, Cornelia ; Duffy, Brion ; Défago, Geneviève

In: FEMS Microbiology Ecology, 2003, vol. 45, no. 1, p. 71-81

Do colonization by dark septate endophytes and elevated temperature affect pathogenicity of oomycetes?

Tellenbach, Christoph ; Sieber, Thomas N.

In: FEMS Microbiology Ecology, 2012, vol. 82, no. 1, p. 157-168

Co-feeding transmission in Lyme disease pathogens

VOORDOUW, MAARTEN J.

In: Parasitology, 2015, vol. 142, no. 2, p. 290-302