Mechanisms of Salt Actived Photosynthesis Gene Expression in Alfalfa

苜蓿盐激活光合作用基因表达机制

• 批准号: 8918494
• 负责人: Ilga Winicov
• 金额: $ 12.5万
• 依托单位: Board of Regents, NSHE, obo University of Nevada, Reno
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1990
• 资助国家: 美国
• 起止时间: 1990-03-01 至 1992-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8918494&HistoricalAwards=false
• 关键词: Mechanisms; Salt; Actived; Photosynthesis; Gene

Photosynthetic efficiency is the fundamental molecular basis for biological energy generation in the plant world. The PI's laboratory has developed an experimental system which allows the manipulation of coordinate gene expression of photosynthesis related genes in a similar genetic background. The experimental system consists of salt tolerant alfalfa cell lines and salt tolerant plants regenerated from these cell lines that show enhanced photosynthesis gene expression under salt stress conditions. The PI proposes to identify the basic molecular mechanisms which lead to the accumulation of these gene products and their role in the salt tolerant behavior at the cellular level. The results from these basic biological experiments will increase understanding of important regulatory features in photosynthesis gene expression. These experiments will also provide a model system for understanding the more applied role of photosynthesis related functions in salt sensitivity versus tolerance in plants.

光合效率是植物界生物能源产生的基本分子基础。PI的实验室开发了一个实验系统，可以在相似的遗传背景下操纵光合作用相关基因的坐标基因表达。试验系统由耐盐苜蓿细胞系和由这些细胞系再生的耐盐植株组成，这些耐盐植株在盐胁迫条件下表现出增强的光合作用基因表达。该项目提出在细胞水平上确定导致这些基因产物积累的基本分子机制及其在耐盐行为中的作用。这些基础生物学实验的结果将增加对光合作用基因表达重要调控特征的理解。这些实验也将为了解光合作用相关功能在植物盐敏感性与耐盐性中的应用作用提供一个模型系统。