Regulation of Assimilatory Nitrate Reductase

同化硝酸还原酶的调节

• 批准号: 8615836
• 负责人: Larry Solomonson
• 金额: $ 22.5万
• 依托单位: University of South Florida
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1987
• 资助国家: 美国
• 起止时间: 1987-07-01 至 1991-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8615836&HistoricalAwards=false
• 关键词: Regulation; Assimilatory; Nitrate; Reductase

Regulation of Assimilatory Nitrate Reductase: Dr. Solomonson proposes to elucidate the regulatory mechanisms operative in the regulation of nitrate assimilation. This is the process by which plants convert nitrate in soil to usable organic nitrogen. In an algal model system he will use molecular and biochemical techniques to learn how cellular activity is affected by light intensity, concentrations of oxygen, carbon dioxide, nitrate and fixed nitrogens. Nitrate reductase is the key enzyme in nitrate assimilation, the major process responsible for the conversion of inorganic nitrogen of soil and fertilizer to organic nitrogen in the plant kingdom. The net global production of food protein is eventually dependent in large part on nitrate assimilation. Understanding how nitrate reductase is regulated in the green alga, Chlorella, will certainly increase our knowledge of how this enzyme is regulated throughout the plant kingdom. Thus the results of this study will not only be of fundamental importance but may also in the future be agronomically significant.

同化硝酸盐还原酶的调节：所罗门森博士建议阐明在调节硝酸盐同化中起作用的调节机制。 这是植物将土壤中的硝酸盐转化为可用有机氮的过程。 在藻类模型系统中，他将使用分子和生化技术来了解光强度、氧气浓度、二氧化碳、硝酸盐和固定氮如何影响细胞活动。 硝酸盐还原酶是硝酸盐同化中的关键酶，硝酸盐同化是将土壤和肥料中的无机氮转化为植物界有机氮的主要过程。 全球食物蛋白的净产量最终在很大程度上取决于硝酸盐的同化。 了解硝酸还原酶在绿藻（小球藻）中如何受到调节，肯定会增加我们对整个植物界如何调节这种酶的了解。 因此，这项研究的结果不仅具有根本重要性，而且在未来也可能具有农艺意义。