Search results for "induced [background]"

Knowledge-based strategy to trigger grapevine immunity

2012

Induced resistance as a strategy for vineyard protection

2012

National audience; As most grown grapevine Vitis vinifera varieties are susceptible to diseases such as downy and powdery mildews, numerous treatments are required to ensure a satisfactory yield and harvest quality. However, the use of phytochemical fungicides has serious drawbacks: some of them are potentially harmful for the environment and human health and contribute to the selection of resistant pathogen strains. Nowadays, in an objective of sustainable viticulture, there is increasing societal request, political incitation and winegrower’s awareness to reduce the use of pesticides. For these reasons, alternative strategies of protection are under research. In our laboratory, we are stu…

Volatile organic compounds: a role in elicitor-induced resistance of grapevine against pathogens?

2014

International audience; As Vitis vinifera varieties are susceptible to fungal diseases, numerous chemical treatments are generally required to ensure the quantity and quality of the harvest. However, in the context of sustainable viticulture, there are increasing societal request, political incitation, and winegrowers’ awareness to reduce the use of pesticides. Among possible solutions the use of elicitors that could be included in integrated pest management or biocontrol strategies might be very promising. These bioactive compounds are able to trigger plant defences, leading to induced resistance (IR) against pathogens. Despite IR can be elicited very successfully in controlled environment…

Comment stimuler l’immunité de la vigne avec des éliciteurs

2013

Mycorrhiza-induced resistance againsta root-rot pathogen in petunia: molecular mechanisms

2012

Impact of stresses associated to climate changes on natural and induced grapevine resistance to pathogens

2013

National audience; France is a worldwide leader in grape production and has to face global changes including climate evolution and transitions towards sustainable systems of production. One major problem in viticulture is indeed the high susceptibility of most of the grown cultivars to cryptogamic diseases, such as downy mildew (Plasmopara viticola). Maintaining a satisfactory health status of grapevine currently requires numerous fungicide treatments. However, in an objective of sustainable viticulture, there is increasing societal request, winegrower awareness, and political incitation to reduce this use of pesticides. For these reasons, alternative strategies of protection are currently …

Sesquiterpenes VOCs are markers of elicitation by sulfated laminarine in grapevine

2016

International audience

Biostimulation of grapevine and wheat : mode of action and possible agronomic uses

2015

SPE IPM UBSPEIPMUB; Downy mildew, caused by Plasmopara viticola, is one of the most important grape pathogen in Europe and North America. Although the control is traditionally performed with fungicides, the appearance of resistant pathogen populations and the possible adverse effects on human and environment health are spurring the search for alternative means. In the present investigation, two protein hydrolysates of soybean (soy) and casein (cas) origin were successfully tested against P. viticola. On Vitis vinifera cv. Marselan plants, the application of soy and cas reduced the infected leaf surface by 76 and 63%, as compared to the untreated control, respectively. Since both hydrolysate…

"Omics-" for a mapping of grapevine response to elicitors and identification of induced resistance markers

2017

SPEIPMINRAUBCNRS; "Omics-" for a mapping of grapevine response to elicitors and identification of induced resistance markers . 12. European Fondation for Plant Pathology (EFPP) & 10. French Society for Plant Pathology Conference ‘Deepen Knwoledge in Plant Pathology for Innovative Agro-Ecology’

Etude de la biodisponibilité d'oligosaccharides éliciteurs dans les tissus foliaires en vue de l'amélioration de leur efficacité contre le mildiou de…

2015

Etude de la biodisponibilité d'oligosaccharides éliciteurs dans les tissus foliaires en vue de l'amélioration de leur efficacité contre le mildiou de la vigne