Diversity and function of fungal root endophytes in Canadian boreal forests

加拿大北方森林根内生真菌的多样性和功能

• 批准号: 341671-2007
• 负责人: Kernaghan, Gavin
• 金额: $ 2.02万
• 依托单位: Mount Saint Vincent University
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2012
• 资助国家: 加拿大
• 起止时间: 2012-01-01 至 2013-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=496593
• 关键词: Diversity; function; fungal; root; endophytes

Plant roots are colonized by a diverse array of fungi. These include not only detrimental pathogens, but also beneficial species which improve plant growth. Still others exist as "endophytes" within the plant root tissue, which do not cause disease symptoms or form the structures normally found in beneficial associations. Root endophytic fungi are often abundant and found on almost all plants so far studied, yet their cryptic nature has constrained investigation into their role in the ecology of the soil environment. Root endophytic fungi potentially represent an undiscovered source of biodiversity. Not only have previous studies of fungal root endophytes uncovered high levels of diversity, but the endophytic fungi of leaves (the above-ground analogy) are thought to be "hyperdiverse". Modern DNA based detection techniques are far more sensitive than those previously employed, and should reveal the true diversity of these unseen organisms.

植物根被各种真菌殖民。这些不仅包括有害病原体，还包括改善植物生长的有益物种。还有其他作为植物根组织中的“内生菌”存在，不会引起疾病症状或形成通常在有益关联中发现的结构。根部内生真菌通常很丰富，并且在到目前为止所研究的几乎所有植物上都发现，但是它们的神秘性限制了对它们在土壤环境生态学中的作用的研究。根部内生真菌可能代表未发现的生物多样性来源。以前对真菌根内生菌的研究发现了高水平的多样性，而且叶子的内生真菌（地上类比）被认为是“ hyperdverse”。基于现代DNA的检测技术比以前使用的检测技术要敏感得多，应该揭示这些看不见的生物的真实多样性。