REU: Physiological Integration and Its Relationship to Clonal Plant Demography

REU：生理整合及其与克隆植物人口学的关系

• 批准号: 8717209
• 负责人: Maxine Watson
• 金额: $ 18.31万
• 依托单位: Indiana University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1988
• 资助国家: 美国
• 起止时间: 1988-02-01 至 1993-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8717209&HistoricalAwards=false
• 关键词: REU; Physiological; Integration; Its; Relationship

Clonal plants differ from many familiar types of plants and animals, in that they are made up of a number of genetically identical individuals that are interconnected with each other. Increase in population size results from the production of new plants from those that already exist rather than from production of seed. The principal goals of the proposed research are to determine to what degree individual plants that comprise a clone are physiologically linked to each other, what affect the amount of linkage has on the production of new plants, and how the presence or absence of linkage influences the pattern of population growth, and hence, persistence of the clone. Manipulations of resource availability will be performed in the field, and the short-term and long-term developmental consequences of these manipulations studied. Radioactive carbon labeling experiments and tissue nutrient analyses will reveal patterns of resource movement and utilization within clones, and whether they vary through the year. The proposed studies will increase our understanding of the relationship between physiological integration and clonal demography, and contribute to our understanding of the costs of reproduction and the appropriate unit of selection in this and other clonal plants. Many commercially important plants (forage grasses, strawberries), and commercially costly weeds (water hyacinths, crabgrass) grow clonally. Podophyllum peltatum, the subject of this study, is the source of a drug used in cancer treatment, podophyllin, an anti-mitotic agent. Understanding how the environment affects the growth of such plants, and how the degree of physiological integration among the components of such clones may ameliorate these environmental affects, is a critical step in learning how to manage the growth of clonal plants effectively.

克隆植物不同于许多常见的植物类型， 动物，因为它们是由一些基因组成的， 相同的个体相互联系。 人口规模的增加是由于新的 植物从那些已经存在的，而不是从生产 种子。 拟议研究的主要目标是 确定个体植物组成克隆的程度 在生理上是相互联系的， 的联系对新工厂的生产，以及如何 存在或不存在的联系影响的模式， 人口增长，因此，克隆的持久性。 对资源可用性的操作将在 以及短期和长期发展 研究这些操作的后果。 放射性碳 标记实验和组织营养分析将揭示 克隆内的资源移动和利用模式，以及 它们是否在一年中变化。 拟议的研究将 加深我们对 生理整合和克隆人口，并有助于 我们对繁殖成本的理解， 在这种和其他克隆植物中选择适当的单位。 许多商业上重要的植物（牧草， 草莓）和商业上昂贵的杂草（水葫芦， 马唐）无性繁殖。 盾叶鬼臼 这项研究是一种用于癌症治疗的药物的来源， 鬼臼脂素，一种抗有丝分裂剂。 了解如何 环境影响这些植物的生长，以及 这些克隆的组成部分之间的生理整合 可以改善这些环境影响，是关键的一步， 学习如何有效管理克隆植物的生长。