Spatial Organization of Resistance and Plant-Pathogen Dynamics

抗性的空间组织和植物病原体动力学

• 批准号: 9629748
• 负责人: Leslie Real
• 金额: $ 20.6万
• 依托单位: Indiana University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1996
• 资助国家: 美国
• 起止时间: 1996-08-01 至 1998-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9629748&HistoricalAwards=false
• 关键词: Spatial; Organization; Resistance; Plant; Pathogen

We are investigating the forces generating the spatial pattern of infection by looking at the plant Phlox paniculata and the powdery mildew. Diseased plants may be clumped because of a spatial pattern of resistance to the disease, because of environmental patchiness, or because the limited dispersal ability of the pathogen prevents distant plants from getting infected. We will examine this question by constructing and comparing spatial maps of disease resistance, environmental conditions, and disease occurrence in an intact Phlox population. In addition, we will determine if spatial patterns of disease resistance are created because near neighbors are close relatives which share similar resistance. Genetic relatedness will be determined by DNA analysis. Disease resistance will be determined by inoculation tests. Environmental factors will be monitored using computer controlled sensors, and disease occurrence will be monitored by weekly censusing. By understanding the factors controlling disease spread in Phlox paniculata, we will better understand how all plant diseases spread.

我们正在调查的力量产生的空间格局的感染，通过看植物福禄考paniculata和白粉病。 被侵染的植物可能由于对疾病的抗性的空间模式、由于环境的斑块性或由于病原体有限的传播能力阻止了远距离植物被感染而聚集。 我们将通过构建和比较完整福禄考种群的抗病性、环境条件和疾病发生的空间图来研究这个问题。 此外，我们将确定抗病性的空间格局是否是因为近邻是具有相似抗性的近亲而形成的。 遗传相关性将通过DNA分析确定。 抗病性将通过接种试验确定。 环境因素将使用计算机控制的传感器进行监测，疾病发生将通过每周人口普查进行监测。 通过了解控制福禄考疾病传播的因素，我们将更好地了解所有植物疾病是如何传播的。