Endophytic root associated fungi in the prairie: distribution and role in dryland

草原内生根相关真菌：在旱地的分布和作用

• 批准号: 173141-2010
• 负责人: Hamel, Chantal
• 金额: $ 1.76万
• 依托单位: Université de Montréal
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2016
• 资助国家: 加拿大
• 起止时间: 2016-01-01 至 2017-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=593611
• 关键词: Endophytic; root; associated; fungi; prairie

We found large amounts of non-mycorrhizal root associated fungi (RAF) in the root of field-grown prairie grasses in semiarid Saskatchewan. RAF may be important associates of plants living in extreme environments, where they share root occupation with arbuscular mycorrhizal (AM) fungi. The abundance of these RAF in asymptomatic plant roots in our region of the Prairie often exceeds that of AM fungi, suggesting that RAF may influence importantly the productivity of native and crop plants under the reduced moisture conditions prevailing in the Canadian Prairie. Recent research in our laboratory suggests that some RAF can improve plant tolerance to drought, an effect that may differ in C3 and C4 plants.

我们在半干旱的萨斯喀彻温省田间种植的草原草的根部发现了大量非菌根根相关真菌（RAF）。 RAF 可能是生活在极端环境中的植物的重要伙伴，它们与丛枝菌根 (AM) 真菌共享根系。我们大草原地区无症状植物根部中这些 RAF 的丰度通常超过 AM 真菌，这表明在加拿大大草原普遍存在的水分减少条件下，RAF 可能对本地植物和农作物的生产力产生重要影响。我们实验室最近的研究表明，一些 RAF 可以提高植物对干旱的耐受性，这种效果在 C3 和 C4 植物中可能有所不同。