Reference number : GC-2017-Q4-00141, amendment number : , agreement type : G, recipient legal name : Beauregard, Pascale (Université de Sherbrooke), recipient country : CA, recipient province : nan, recipient city : Quebec|Québec, recipient postal code : nan, program name english : Engage Grants for universities, program name french : Subventions d'engagement partenarial pour les universités, program purpose english : Production of organic horticultural plants is of great economical and environmental interest for Plant Select, an_x000D_
important producer located in Quebec. However the biofungicides currently available, based on the_x000D_
plant-beneficial bacterium Bacillus subtilis, show little to no activity against the major fungal pathogens of_x000D_
Echinacea and Lavandula. While B. subtilis is well known for its capacity to prevent fungal infections in_x000D_
certain agricultural plants, its survival and colonization on these plants is unknown. Also, our laboratory_x000D_
recently observed that B. subtilis forms dormant spores rapidly after colonizing a model plant, which decreases_x000D_
its anti-fungal activities. Thus, we hypothesize that the lack of biofungicide effect of B. subtilis on Echinacea_x000D_
might be due to a defective colonization of the plant, by premature entry dormancy, or both. To examine this_x000D_
hypothesis, we will follow colonization of leaves and roots through time after inoculation of Echinacea and_x000D_
Lavandula with two different B. subtilis strains in Plant Select greenhouses. These results will provide us with_x000D_
a better understanding of B. subtilis growth dynamic and survival on plants. In a second aim, we will examine_x000D_
the capacity of a variety of small organic molecules to stimulate the germination of B. subtilis dormant cells, in_x000D_
the perspective of developing a biostimulant that could improve the activity of B. subtilis on plants. This_x000D_
project will lead to a wider usage of organic fungicides in a perspective of sustainable plant production, thus_x000D_
providing healthier work conditions and reduce the impact of horticultural production on the environment., program purpose french : Production of organic horticultural plants is of great economical and environmental interest for Plant Select, an_x000D_
important producer located in Quebec. However the biofungicides currently available, based on the_x000D_
plant-beneficial bacterium Bacillus subtilis, show little to no activity against the major fungal pathogens of_x000D_
Echinacea and Lavandula. While B. subtilis is well known for its capacity to prevent fungal infections in_x000D_
certain agricultural plants, its survival and colonization on these plants is unknown. Also, our laboratory_x000D_
recently observed that B. subtilis forms dormant spores rapidly after colonizing a model plant, which decreases_x000D_
its anti-fungal activities. Thus, we hypothesize that the lack of biofungicide effect of B. subtilis on Echinacea_x000D_
might be due to a defective colonization of the plant, by premature entry dormancy, or both. To examine this_x000D_
hypothesis, we will follow colonization of leaves and roots through time after inoculation of Echinacea and_x000D_
Lavandula with two different B. subtilis strains in Plant Select greenhouses. These results will provide us with_x000D_
a better understanding of B. subtilis growth dynamic and survival on plants. In a second aim, we will examine_x000D_
the capacity of a variety of small organic molecules to stimulate the germination of B. subtilis dormant cells, in_x000D_
the perspective of developing a biostimulant that could improve the activity of B. subtilis on plants. This_x000D_
project will lead to a wider usage of organic fungicides in a perspective of sustainable plant production, thus_x000D_
providing healthier work conditions and reduce the impact of horticultural production on the environment., agreement title english : Sporulation and germination of the biofungicide Bacillus subtilis on Echinacea and Lavandula plants in a horticulture production, agreement title french : Sporulation and germination of the biofungicide Bacillus subtilis on Echinacea and Lavandula plants in a horticulture production, agreement number : EGP, agreement value : 25000.0, agreement start date : 2018-03-22, agreement end date : nan, description english : nan, description french : nan, expected results english : nan, expected results french : nan, additional information english : Grant or Award spanning more than one fiscal year (2017-2018 to 2018-2019)., additional information french : Subvention ou bourse octroyée s'appliquant à plus d'un exercice financier (2017-2018 à 2018-2019)., owner organization : nserc-crsng, owner organization title : Natural Sciences and Engineering Research Council of Canada | Conseil de recherches en sciences naturelles et en génie du Canada