Diversity of Arbuscular Mycorrhizal Fungi and Soil Aggregation

丛枝菌根真菌多样性与土壤团聚

• 批准号: 0128953
• 负责人: Matthias Rillig
• 金额: $ 28.82万
• 依托单位: University of Montana
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2002
• 资助国家: 美国
• 起止时间: 2002-01-15 至 2005-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0128953&HistoricalAwards=false
• 关键词: Diversity; Arbuscular; Mycorrhizal; Fungi; Soil

Soil aggregation (the arrangement of pore spaces and solid matter in soil) is a critically important process in natural and managed ecosystems, affecting a wide range of soil and ecosystem functions and biota. Management practices and erosion threaten soil structure on a national and global scale. Fungi, and in particular arbuscular mycorrhizal fungi (AMF), are of great significance in soil aggregation. However, there is little known about of the basic biological characteristics of AMF in relation to soil aggregation. This research tests several fundamental biological (physiological and architectural) characteristics of AMF for their relationship with soil aggregation. It is hypothesized that there fungal traits correlate with soil aggregation across a number of fungal species. The research also places soil aggregation in the context of other functions carried out by these symbiotic fungi, and investigates how different species of fungi can interact in maintaining stable soil aggregates. An aspect of the educational component of this research is participation of graduate students and PI in the Montana Teachers Investigate Ecology program, a partnership with Western Montana High School teachers.

土壤团聚（土壤中孔隙空间和固体物质的排列）是自然生态系统和管理的生态系统中一个至关重要的过程，影响到广泛的土壤和生态系统功能以及生物区系。管理做法和侵蚀威胁着国家和全球范围的土壤结构。真菌，特别是丛枝菌根真菌（AMF），在土壤团聚体中具有重要意义。然而，关于AMF的基本生物学特性与土壤团聚体的关系，目前还知之甚少。本研究测试了AMF的几个基本生物学（生理和建筑）特性与土壤团聚体的关系。据推测，这些真菌性状与土壤聚集在许多真菌物种。该研究还将土壤团聚体置于这些共生真菌进行的其他功能的背景下，并研究了不同种类的真菌如何在保持稳定的土壤团聚体中相互作用。本研究的教育部分的一个方面是研究生和PI参与蒙大拿州教师调查生态计划，与蒙大拿州西部高中教师的伙伴关系。