Sporulation and germination of the biofungicide Bacillus subtilis on Echinacea and Lavandula plants in a horticulture production
园艺生产中生物杀菌剂枯草芽孢杆菌在紫锥菊和薰衣草植物上的孢子和萌发
基本信息
- 批准号:522757-2017
- 负责人:
- 金额:$ 1.82万
- 依托单位:
- 依托单位国家:加拿大
- 项目类别:Engage Grants Program
- 财政年份:2017
- 资助国家:加拿大
- 起止时间:2017-01-01 至 2018-12-31
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
Production of organic horticultural plants is of great economical and environmental interest for Plant Select, animportant producer located in Quebec. However the biofungicides currently available, based on theplant-beneficial bacterium Bacillus subtilis, show little to no activity against the major fungal pathogens ofEchinacea and Lavandula. While B. subtilis is well known for its capacity to prevent fungal infections incertain agricultural plants, its survival and colonization on these plants is unknown. Also, our laboratoryrecently observed that B. subtilis forms dormant spores rapidly after colonizing a model plant, which decreasesits anti-fungal activities. Thus, we hypothesize that the lack of biofungicide effect of B. subtilis on Echinaceamight be due to a defective colonization of the plant, by premature entry dormancy, or both. To examine thishypothesis, we will follow colonization of leaves and roots through time after inoculation of Echinacea andLavandula with two different B. subtilis strains in Plant Select greenhouses. These results will provide us witha better understanding of B. subtilis growth dynamic and survival on plants. In a second aim, we will examinethe capacity of a variety of small organic molecules to stimulate the germination of B. subtilis dormant cells, inthe perspective of developing a biostimulant that could improve the activity of B. subtilis on plants. Thisproject will lead to a wider usage of organic fungicides in a perspective of sustainable plant production, thusproviding healthier work conditions and reduce the impact of horticultural production on the environment.
有机园艺植物的生产对位于魁北克的重要生产商Plants Select具有重大的经济和环境利益。然而,目前可用的以植物有益细菌枯草芽孢杆菌为基础的生物杀菌剂,对紫锥菊和薰衣草等主要真菌病原体几乎没有或几乎没有活性。虽然枯草芽孢杆菌以其在某些农业植物上预防真菌感染的能力而闻名,但它在这些植物上的存活和定植尚不清楚。此外,我们的实验室最近观察到,枯草杆菌在模式植物上定植后迅速形成休眠孢子,这降低了其抗真菌活性。因此,我们推测枯草芽孢杆菌对紫锥菊缺乏生物杀菌作用可能是由于植物的有缺陷的定植,或由于过早进入休眠,或两者兼而有之。为了检验这一现象,我们将跟踪在植物选择温室中接种两个不同的枯草芽孢杆菌菌株紫锥菊和薰衣草后,叶片和根的定植情况。这些结果将为我们更好地了解枯草芽孢杆菌在植物上的生长动态和存活情况提供依据。在第二个目标中,我们将从开发一种可以提高枯草杆菌在植物上的活性的生物刺激剂的角度,检测各种有机小分子刺激枯草杆菌休眠细胞萌发的能力。该项目将从可持续植物生产的角度更广泛地使用有机杀菌剂,从而提供更健康的工作条件,并减少园艺生产对环境的影响。
项目成果
期刊论文数量(0)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
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Beauregard, Pascale其他文献
Beauregard, Pascale的其他文献
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{{ truncateString('Beauregard, Pascale', 18)}}的其他基金
Determination and optimization of Bacillus subtilis traits required for its establishment, persistence and activities on plant roots
枯草芽孢杆菌在植物根部建立、持久性和活性所需性状的确定和优化
- 批准号:
RGPIN-2020-07057 - 财政年份:2022
- 资助金额:
$ 1.82万 - 项目类别:
Discovery Grants Program - Individual
Determination and optimization of Bacillus subtilis traits required for its establishment, persistence and activities on plant roots
枯草芽孢杆菌在植物根部建立、持久性和活性所需性状的确定和优化
- 批准号:
RGPIN-2020-07057 - 财政年份:2021
- 资助金额:
$ 1.82万 - 项目类别:
Discovery Grants Program - Individual
Determination and optimization of Bacillus subtilis traits required for its establishment, persistence and activities on plant roots
枯草芽孢杆菌在植物根部建立、持久性和活性所需性状的确定和优化
- 批准号:
RGPIN-2020-07057 - 财政年份:2020
- 资助金额:
$ 1.82万 - 项目类别:
Discovery Grants Program - Individual
Molecular requirements of Bacillus subtilis root colonization
枯草芽孢杆菌根定植的分子要求
- 批准号:
RGPIN-2014-04628 - 财政年份:2019
- 资助金额:
$ 1.82万 - 项目类别:
Discovery Grants Program - Individual
Molecular requirements of Bacillus subtilis root colonization
枯草芽孢杆菌根定植的分子要求
- 批准号:
RGPIN-2014-04628 - 财政年份:2018
- 资助金额:
$ 1.82万 - 项目类别:
Discovery Grants Program - Individual
Molecular requirements of Bacillus subtilis root colonization
枯草芽孢杆菌根定植的分子要求
- 批准号:
RGPIN-2014-04628 - 财政年份:2017
- 资助金额:
$ 1.82万 - 项目类别:
Discovery Grants Program - Individual
Molecular requirements of Bacillus subtilis root colonization
枯草芽孢杆菌根定植的分子要求
- 批准号:
RGPIN-2014-04628 - 财政年份:2016
- 资助金额:
$ 1.82万 - 项目类别:
Discovery Grants Program - Individual
Molecular requirements of Bacillus subtilis root colonization
枯草芽孢杆菌根定植的分子要求
- 批准号:
RGPIN-2014-04628 - 财政年份:2015
- 资助金额:
$ 1.82万 - 项目类别:
Discovery Grants Program - Individual
Molecular requirements of Bacillus subtilis root colonization
枯草芽孢杆菌根定植的分子要求
- 批准号:
RGPIN-2014-04628 - 财政年份:2014
- 资助金额:
$ 1.82万 - 项目类别:
Discovery Grants Program - Individual
Molecular and functional characterization of Ciflp, a potential prion protein implicated in cell viability in the absence of the essential chaperone calnexin
Ciflp 的分子和功能表征,Ciflp 是一种潜在的朊病毒蛋白,在缺乏必需伴侣钙连接蛋白的情况下与细胞活力有关
- 批准号:
304216-2004 - 财政年份:2005
- 资助金额:
$ 1.82万 - 项目类别:
Alexander Graham Bell Canada Graduate Scholarships - Doctoral
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小麦DELAYED GERMINATION 1 基因调控种子萌发和穗发芽的分子机理
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