Molecular detection of cranberry fruit rot fungi and fungicide resistance management

蔓越莓果腐病真菌的分子检测及杀菌剂抗性管理

• 批准号: 561831-2021
• 负责人: Bélanger, RichardRR
• 金额: $ 8.74万
• 依托单位: Université Laval
• 依托单位国家: 加拿大
• 项目类别: Alliance Grants
• 财政年份: 2022
• 资助国家: 加拿大
• 起止时间: 2022-01-01 至 2023-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=763504
• 关键词: Molecular; detection; cranberry; fruit; rot

The worldwide cranberry economy is carried out by 14 countries. Approximately 30% of the global production comes from Canada alone where Québec and British Columbia represent 95% of the production. The most prejudicial disease to this production is cranberry fruit rot (CFR) caused by a complex of 12 fungal species. This disease complex can cause as much as 100% loss of production, leading to severe economic losses. Applications of fungicides are mainly used for disease control. Owing to the negative effects of these methods on biodiversity and public and environmental health, more economic and environmentally-friendly approaches are required to control the impact of CFR. This project will provide the first precise, up-to-date and large-scale description of the composition, distribution, evolution and extent of fungal species causing CFR in cranberry production in all major growing areas in Canada as it also relates to bordering states in the USA. The results will give predictive trends of CFR dynamic owing to climate change based on development disease patterns occurring in cranberry fields. An approach of this magnitude was inconceivable as recently as a few months ago until the development of an innovative molecular test by our team to simultaneously identify all 12 fungi causing CFR. This breakthrough offers partners an unprecedented window into one of the most limiting factors of cranberry production along with tools to develop targeted management strategies to implement integrated control approaches.

全球蔓越莓经济由 14 个国家开展。全球约 30% 的产量仅来自加拿大，其中魁北克省和不列颠哥伦比亚省的产量占 95%。对生产影响最大的疾病是蔓越莓果腐病 (CFR)，由 12 种真菌复合体引起。这种疾病复合体可导致高达 100% 的产量损失，从而导致严重的经济损失。杀菌剂的应用主要用于病害防治。由于这些方法对生物多样性以及公共和环境健康产生负面影响，需要采取更经济、更环保的方法来控制 CFR 的影响。该项目将首次对导致加拿大所有主要种植区蔓越莓生产中 CFR 的真菌物种的组成、分布、进化和范围进行精确、最新和大规模的描述，因为它也与美国接壤的各州有关。结果将根据蔓越莓田发生的疾病发展模式，给出气候变化导致的 CFR 动态预测趋势。就在几个月前，这种规模的方法还是不可想象的，直到我们的团队开发出一种创新的分子测试来同时识别导致 CFR 的所有 12 种真菌。这一突破为合作伙伴提供了前所未有的窗口，了解蔓越莓生产的最大限制因素之一，以及制定有针对性的管理策略以实施综合控制方法的工具。