The In vivo Role of Xanthophylls in LHC Structure and Function

叶黄素在 LHC 结构和功能中的体内作用

• 批准号: 9723592
• 负责人: Dean DellaPenna
• 金额: $ 28.51万
• 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: Continuing Grant
• 财政年份: 1997
• 资助国家: 美国
• 起止时间: 1997-09-15 至 2000-09-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9723592&HistoricalAwards=false
• 关键词: vivo; Role; Xanthophylls; LHC; Structure

9723592 DellaPenna Carotenoids are integral components of plant photosystems and their compositions in photosynthetic membranes is remarkably conserved. In order to increase our understanding of carotenoid synthesis and function in plants, the work uses a molecular approach in Arabidopsis to define and disrupt the pathway and thereby modify carotenoid production in vivo. Two loci, responsible for the synthesis of lutein have been identified. In a comparison between wild type and mutant lines, the work will characterize the production and accumulation of carotenoids during growth and development, in response to various environmental perturbations, monitor pigment/ protein complex structure and composition, and measure the effect of altered pigment composition on photosynthetic parameters.

9723592类胡萝卜素是植物光系统的组成部分，它们在光合膜中的组成是非常保守的。为了增加我们对植物中类胡萝卜素合成和功能的理解，这项工作使用拟南芥中的分子方法来定义和破坏途径，从而改变体内类胡萝卜素的产生。已经鉴定了两个负责叶黄素合成的位点。在野生型和突变株系之间的比较中，这项工作将表征生长和发育过程中类胡萝卜素的产生和积累，以响应各种环境扰动，监测色素/蛋白质复合物的结构和组成，并测量改变色素组成对光合参数的影响。