Characterization of Water Deficit Effects on Chloroplast Photosynthetic Potential

缺水对叶绿体光合势影响的表征

• 批准号: 8706240
• 负责人: Gerald Berkowitz
• 金额: $ 15万
• 依托单位: Rutgers University New Brunswick
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1987
• 资助国家: 美国
• 起止时间: 1987-09-01 至 1991-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8706240&HistoricalAwards=false
• 关键词: Characterization; Water; Deficit; Effects; Chloroplast

Characterization of Water Deficit Effects on Chloroplast Photosynthetic Potential: This research continues the characterization of how water deficits in leaves inhibit chloroplast photosynthetic potential and proposes to identify endogenous cellular mechanisms that modulate the severity of this inhibition. The chloroplast response in vitro to dehydrating external osmotic potentials and in situ to leaf water deficits will be examined. The information obtained from this research should increase our understanding of the factors involved in non-stomatal-mediated water deficit effects on photosynthesis. Non-stomatal effects appear to be the major limiting effects on crop growth under- water stress conditions.

缺水对叶绿体光合潜能影响的表征：这项研究继续表征叶片缺水如何抑制叶绿体光合潜能，并提出确定调节这种抑制严重程度的内源细胞机制。 将检查叶绿体对脱水外部渗透势的体外反应和原位对叶片水分亏缺的反应。 从这项研究中获得的信息应该会增加我们对非气孔介导的水分亏缺对光合作用影响的因素的理解。 非气孔效应似乎是水分胁迫条件下对作物生长的主要限制效应。