Strategies to increase durability of host resistance for effective control of phoma stem canker on oilseed rape

提高宿主抗性持久性以有效控制油菜茎腐病的策略

• 批准号: 102100
• 金额: $ 19.01万
• 依托单位: H.L. HUTCHINSON LIMITED
• 依托单位国家: 英国
• 项目类别: Collaborative R&D
• 财政年份: 2015
• 资助国家: 英国
• 起止时间: 2015 至 无数据
• 项目状态: 已结题
• 来源: https://gtr.ukri.org/projects?ref=102100
• 关键词: Strategies; increase; durability; host; resistance

Phoma stem canker, caused by the fungal pathogen Leptosphaeria maculans, is a damaging disease on oilseed rape in the UK, causing annual yield losses > £100M despite use of fungicides. With recent loss of the most effective fungicides through EU legislation and predicted global warming, potential yield losses will increase. Use of host resistance to control this disease is becoming ever more important. However, new sources of resistance are often rendered ineffective due to pathogen population changes. This project will monitor emergence of new virulent races of L. maculans and prevent them from spreading into new regions; investigate molecular mechanisms of mutation from avirulent to virulence in L. maculans populations; understand effects of environmental factors (e.g. temperature) on durability of host resistance. New knowledge will be used to develop new control strategies by optimising deployment of host resistance and targeted fungicide application. This project will bring together a consortium with breeders, distributor, farmer and scientists to ensure effective control of phoma stem canker by directly applying knowledge from research into farming practice.

茎点霉茎溃疡病由真菌病原体斑点细球腔菌（Leptosphaeria maculans）引起，是英国油菜上的一种破坏性疾病，尽管使用杀真菌剂，但仍导致年产量损失> 1亿英镑。随着最近欧盟立法和预测的全球变暖导致最有效的杀菌剂的损失，潜在的产量损失将增加。利用宿主抗性来控制这种疾病变得越来越重要。然而，由于病原体种群的变化，新的抗性来源往往变得无效。本项目将监测L.研究了L. maculans从无毒突变为毒力的分子机制。了解环境因素（如温度）对宿主抗性持久性的影响。新的知识将用于开发新的控制策略，通过优化部署宿主抗性和有针对性的杀菌剂应用。该项目将汇集育种者、经销商、农民和科学家组成的联合体，通过将研究知识直接应用于农业实践，确保有效控制茎点霉茎溃疡病。