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.

在未来几十年里，植物研究必须响应全球对粮食和能源资源日益增长的需求，重点是发展可持续的实践来满足这些需求。一个主要目标是减少农业中合成氮肥的使用，因为这些含氮化学物质会造成严重的环境污染。本研究项目的重点是氮在植物体内的吸收和分配，特别是以氨基酸的形式，以了解这些过程如何影响植物生长和生物量产量。植物氨基酸转运的关键组分已经被确定，转运过程的改变是否能促进植物对低氮土壤的适应将被确定。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，这可能会导致在没有密集施氮的情况下改善植物生长、种子质量和产量。在学术层面，拟议的研究将通过促进学生在植物生物学方面的培训，将研究与科学教育结合起来。预计该项目的成果将为进一步研究植物运输过程和相关代谢网络提供基础，并为制定战略以确保粮食和生物燃料生产的植物生产力同时保护环境提供长期目标。