Physiological, molecular and epigenetic approaches to investigate regulation of leaf senescence by chloroplast derived signals

生理、分子和表观遗传学方法研究叶绿体衍生信号对叶片衰老的调节

• 批准号: 163965869
• 负责人: Professor Dr. Klaus Humbeck
• 金额: --
• 依托单位: Abteilung Pflanzenphysiologie
• 依托单位国家: 德国
• 项目类别: Research Grants
• 财政年份: 2009
• 资助国家: 德国
• 起止时间: 2008-12-31 至 2011-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/163965869?language=en
• 关键词: Physiological; molecular; epigenetic; approaches; investigate

Molecular and epigenetic changes during leaf senescence will be characterized in barley flag leaves which have been collected from fields and have been characterized for various photosynthetic parameters. One objective of the project is to elucidate early development related events in the photosynthetic apparatus which precede the expression of senescence associated genes in the nucleus. Another objective is to identify chloroplast signals and putative mediators of retrograde signalling affecting senescence associated chromatin modifications and gene expression in the nucleus. Based on the data of this field trial hypotheses on the mechanism of senescence regulation by chloroplast originating signals will be developed. These hypotheses will be tested in future projects which will be conducted in an interdisciplinary context of a package application by WB, HK, KH and KK.

叶片衰老过程中的分子和表观遗传变化的特点是大麦旗叶已从外地收集，并已为各种光合参数的特点。该项目的一个目标是阐明光合器中与早期发育相关的事件，这些事件发生在细胞核中衰老相关基因表达之前。另一个目的是确定叶绿体信号和假定的介质的逆行信号影响衰老相关的染色质修饰和基因表达的核。根据田间试验的数据，将提出叶绿体起源信号调控衰老机制的假说。这些假设将在未来的项目中进行测试，这些项目将在WB，HK，KH和KK的一揽子应用的跨学科背景下进行。

项目成果

Epigenetic and small RNA regulation of senescence

• DOI: 10.1007/s11103-012-0005-0
• 发表时间: 2013-01
• 期刊: Plant Molecular Biology
• 影响因子: 5.1
• 作者: K. Humbeck