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DISSERTATION RESEARCH: Experimental Investigations of the Role of Mycorrhizal Fungi in Woody Plant Encroachment in Califorina Grasslands

论文研究：菌根真菌在加州草原木本植物侵占中作用的实验研究

基本信息

批准号：
0309152
负责人：
Wayne Sousa
金额：
$ 1.2万
依托单位：
University of California-Berkeley
依托单位国家：
美国
项目类别：
Standard Grant
财政年份：
2003
资助国家：
美国
起止时间：
2003-06-01 至 2006-05-31
项目状态：
已结题

来源：
https://www.nsf.gov/awardsearch/showAward?AWD_ID=0309152&HistoricalAwards=false
关键词：
DISSERTATION RESEARCH Experimental Investigations Role

项目摘要

AbstractDISSERTATION RESEARCH: Experimental Investigations of the Role of Mycorrhizal Fungi in Woody Plant Encroachment in California GrasslandsSousaDEB-0309152A growing number of studies suggest that mycorrhizal fungi may play an important role in determining plant distributions, and the forest-grassland ecotone is a model system to investigate this question. This research investigates the role of mycorrhizal fungi in woody plant encroachment into California grasslands. It examines how mycorrhizal assemblages change across the forest-grassland ecotone and the mechanism by which these fungi facilitate woody plant encroachment. The P.I. will use a combination of manipulative field and greenhouse experiments as well as molecular techniques to assess the importance of mycorrhizal fungi in woody plant encroachment. The use of molecular techniques along with field-based manipulative experiments will provide a unique opportunity to experimentally determine the importance of mycorrhizal fungi. This research will make a significant contribution towards our current understanding of the factors affecting plant distributions and the growing literature of forest-grassland ecotone dynamics. Woody plant encroachment is a widespread phenomenon that has considerable concerns for rangeland management. By examining a potentially key factor affecting woody plant establishment, this research on mycorrhizal fungi will make an important contribution to effective management strategies.

摘要论文研究：菌根真菌在加利福尼亚草原木本植物入侵中的作用实验研究越来越多的研究表明，菌根真菌可能在确定植物分布中起重要作用，而森林-草地交错带是研究这一问题的模型系统。本研究探讨了菌根真菌在木本植物入侵加州草原中的作用。它研究了菌根组合如何在森林-草地交错带发生变化，以及这些真菌促进木本植物入侵的机制。该项目将结合田间和温室实验以及分子技术来评估菌根真菌在木本植物入侵中的重要性。分子技术的使用以及基于现场的操作实验将提供一个独特的机会，以实验确定菌根真菌的重要性。该研究将对我们目前对植物分布影响因素的理解和森林-草地交错带动态的文献增长做出重大贡献。木本植物的入侵是一个普遍存在的现象，对牧场管理有着相当大的影响。通过研究影响木本植物生长的潜在关键因素，对菌根真菌的研究将为制定有效的管理策略做出重要贡献。