Transduction of Blue Light Signals in Higher Plants

高等植物中蓝光信号的转导

• 批准号: 8819137
• 负责人: Winslow Briggs
• 金额: $ 25.93万
• 依托单位: Carnegie Institution of Washington
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1989
• 资助国家: 美国
• 起止时间: 1989-03-15 至 1992-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8819137&HistoricalAwards=false
• 关键词: Transduction; Blue; Light; Signals; Higher

Abstract Blue Light irradiation of etiolated pea seedling strongly reduces the capacity of a 120 kD plasma membrane- associated protein for subsequent in vitro phosphorylation by added ATP. Experiments are described that will a) provide a complete photobiological characterization of the light reaction; b) investigate the correlation of its photobiological properties with known physiological responses to blue light; c) characterize the phosphorylation change biochemically; and d) characterize the protein itself. The measureable changes in phosphorylation occur in seconds, and the PI will show that progress in these four areas will elucidate early steps in one or more signal-transduction chains from blue light photoperception to final physiological response. Plant growth is controlled by light, both the amount and kind of light it receives. Certain plant growth responses are regulated by high energy blue light. This research will examine the mechanism by which plants perceive light and transform that energy into plant functions.

摘要 黄化豌豆幼苗的蓝光照射强烈降低了 120 kD 质膜相关蛋白随后通过添加 ATP 进行体外磷酸化的能力。 所描述的实验将 a) 提供光反应的完整光生物学特征； b) 研究其光生物学特性与已知的蓝光生理反应的相关性； c) 生化表征磷酸化变化； d) 表征蛋白质本身。 可测量的磷酸化变化在几秒钟内发生，PI 将表明这四个领域的进展将阐明从蓝光光感知到最终生理反应的一个或多个信号转导链的早期步骤。 植物生长受光控制，包括其接收的光量和类型。 某些植物生长反应受高能蓝光调节。 这项研究将研究植物感知光并将能量转化为植物功能的机制。