Collaborative Research: Effects of Environmental Variation on Plant Disease in the Tallgrass Prairie

合作研究：环境变化对高草草原植物病害的影响

• 批准号: 0128810
• 负责人: Helen Alexander
• 金额: $ 0.89万
• 依托单位: University of Kansas Center for Research Inc
• 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: 2002-03-15 至 2004-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0128810&HistoricalAwards=false
• 关键词: Collaborative; Research; Effects; Environmental; Variation

ABSTRACTKaren Ann Garett, Allison Power, Helen Alexander (DEB-0130692, 0128277,0128810) Little is known about the role of plant disease in natural ecosystems, but several current environmental concerns motivate a greater understanding. When considering the potential effects of climate change, invasions of new pathogen species, or movement of disease resistance genes from genetically modified crop species to wild plant populations, understanding the role of plant disease in natural ecosystems is key. We propose a study of plant disease in the tallgrass prairie to provide information relevant to these concerns as well as to a general theoretical understanding of pathogen ecology and the role pathogens may play in determining the success of particular plant species. Plants in the tallgrass prairie of North America are of particular interest because so little area remains of this ecosystem and attempts to restore tallgrass prairie are an important focus of conservation efforts in the Great Plains. In this study we will provide information about the abundance of pathogen species and the patterns of their co-occurrence on a set of representative tallgrass prairie plant species found at the Konza Prairie Biological Station (KPBS), an NSF LTER site in the Flint Hills tallgrass prairie region in northeastern Kansas. We will also estimate the effects of predicted climate change scenarios, landscape patterns of microclimate variation, and burning cycle patterns, and work to refine sampling methods for characterizing pathogen populations within natural plant populations. This study will supply an essential baseline data set for plant diseases at KPBS to complement the LTER database on plant species composition and productivity.

Abstractkaren Ann Garett，Allison Power，Helen Alexander（DEB-0130692，0128277,0128810）对植物性疾病在自然生态系统中的作用知之甚少，但是当前的一些环境问题激励着更大的了解。 当考虑气候变化的潜在影响，新病原体的入侵或疾病抗性基因从遗传修饰的农作物物种到野生植物种群的运动时，了解植物疾病在自然生态系统中的作用是关键。 我们提出了一项对塔格拉斯草原植物性疾病的研究，以提供与这些问题以及对病原体生态学的一般理论理解以及病原体在确定特定植物物种成功方面起作用的信息。 北美塔格拉斯大草原的植物特别感兴趣，因为该生态系统的剩余区域很少，试图恢复塔格拉斯草原是大平原上保护工作的重要重点。 在这项研究中，我们将提供有关病原体物种的丰度及其在康萨（Konza）草原生物学站（KPBS）的一组代表性的高草大草原植物物种上的信息，该物种是堪萨斯州东北部的Flint Hills tallgrass Prairie地区的NSF lter地点。 我们还将估算预测气候变化情景，微气候变化的景观模式以及燃烧周期模式的影响，并致力于完善采样方法，以表征天然植物种群中病原体种群。 这项研究将为KPB的植物疾病提供必不可少的基线数据集，以补充有关植物物种组成和生产力的LTE数据库。