Race status, resistance mechanisms, and new sources of resistance to Phytophthora clandestina, a major threat to subterranean clover production.

地下三叶草生产的主要威胁——秘密疫霉的种族状况、抗性机制和新的抗性来源。

• 批准号: LP0561703
• 负责人: Prof Martin Barbetti
• 金额: $ 13.21万
• 依托单位: The University of Western Australia
• 依托单位国家: 澳大利亚
• 项目类别: Linkage Projects
• 财政年份: 2005
• 资助国家: 澳大利亚
• 起止时间: 2005-12-22 至 2009-03-31
• 项目状态: 已结题
• 来源: https://dataportal.arc.gov.au/RGS/Web/Grants/LP0561703
• 关键词: Race; status; resistance; mechanisms; new

Devastating outbreaks of disease caused by Phytophthora clandestina (Phytophthora root rot) since the late 1970s demonstrated the capacity of this disease to impact severely on clover pasture production across southern Australia, particularly as new races of Phytophthora have rapidly emerged to overcome the resistance of all commercial cultivars. The proposed research seeks to delineate new races of the pathogen, to identify the histological and biochemical mechanisms by which resistance to Phytophthora root rot is expressed, and to identify new sources of host resistance. This proposed research will enable breeders, for the first time, to incorporate multiple types of resistance and against different races into new host varieties.

自20世纪70年代后期以来，由Phytophthora clandestina（疫霉根腐病）引起的毁灭性疾病爆发证明了这种疾病严重影响整个澳大利亚南部的三叶草牧场生产的能力，特别是因为疫霉属的新品种迅速出现以克服所有商业品种的抗性。 拟议的研究旨在描绘病原体的新种族，以确定组织学和生化机制，其中抗疫霉根腐病的表达，并确定新的宿主抗性来源。 这项拟议的研究将使育种者首次将多种类型的抗性和针对不同种族的抗性纳入新的宿主品种。