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: University of Saskatchewan
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2011
• 资助国家: 加拿大
• 起止时间: 2011-01-01 至 2012-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=476342
• 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的田间草原牧草的根中发现了大量的非菌根相关真菌(RAF)。RAF可能是生活在极端环境中的植物的重要伙伴，在极端环境中，它们与丛枝菌根(AM)真菌共享根。在我们所在的草原地区，这些RAF在无症状的植物根中的丰度往往超过AM真菌，这表明在加拿大草原普遍存在的水分减少的情况下，RAF可能会对本地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可以提高植物的抗旱性，这一效果在C3和C4植物中可能有所不同。