Essential Roles of Organic Nitrogen Transporters in Whole Plant Physiology

有机氮转运蛋白在全植物生理学中的重要作用

• 批准号: 1021286
• 负责人: Mechthild Tegeder
• 金额: $ 63.89万
• 依托单位: Washington State University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2010
• 资助国家: 美国
• 起止时间: 2010-09-01 至 2016-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1021286&HistoricalAwards=false
• 关键词: Essential; Roles; Organic; Nitrogen; Transporters

Over the coming decades, plant research must respond to ever-increasing global demands for food and energy resources with a focus on developing sustainable practices to address these needs. One major aim is the reduction of synthetic nitrogen fertilizer usage in agriculture since these nitrogen chemicals cause serious pollution of the environment. the focus of this research project is on nitrogen uptake and partitioning within the plant, specifically in the form of amino acids, in order to understand how these processes affect plant growth and biomass yields. Key components in plant amino acid transport have already been identified and it will be determined whether modifications in transport processes can promote the acclimation of plants to low nitrogen soils. Additionally, by using genetic, molecular, biochemical, and physiological approaches it is anticipated that important insights into the mechanisms of nutrient partitioning and nitrogen transport efficiency will be gained that might lead to improvements in plant growth, seed quality and yields without intensive nitrogen fertilization. At the academic level, the proposed research will integrate research with science education by promoting student training in plant biology. Wit is anticipated that the outcomes of this project will provide a basis for further studies on plant transport processes and interrelated metabolic networks with long-term goals of developing strategies to secure plant productivity for food and biofuel production while still protecting the environment.

在接下来的几十年中，植物研究必须响应不断增加的全球对食品和能源资源的需求，重点是开发可持续的实践来满足这些需求。一个主要目的是减少农业中合成氮肥的使用情况，因为这些氮化学物质会严重污染环境。该研究项目的重点是植物内的氮摄取和分区，特别是氨基酸的形式，以了解这些过程如何影响植物的生长和生物量的产量。已经确定了植物氨基酸运输中的关键成分，并且将确定运输过程中的修改是否可以促进植物对低氮土壤的适应。此外，通过使用遗传，分子，生化和生理方法，预计将获得对营养分配和氮转运效率机制的重要见解，这可能会导致植物生长，种子质量和产量的改善而无需强化氮肥。在学术层面上，拟议的研究将通过促进植物生物学的学生培训来将研究与科学教育整合。预计该项目的结果将为植物运输过程和相互关联的代谢网络提供进一步研究的基础，该网络具有长期目标，即制定策略以确保植物生产力以确保食品和生物燃料生产，同时仍保护环境。