Spatio-temporal specificity of cambium stem cell signaling (B12)

形成层干细胞信号传导的时空特异性 (B12)

• 批准号: 285718673
• 金额: --
• 依托单位: Centre for Organismal Studies (COS)
• 依托单位国家: 德国
• 项目类别: Collaborative Research Centres
• 财政年份: 2015
• 资助国家: 德国
• 起止时间: 2014-12-31 至 2021-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/285718673?language=en
• 关键词: Spatio; temporal; specificity; cambium; stem

Radial growth of plant shoots and roots is essential for the formation of wood and of large plant bod-ies, and thus for the creation of biomass. This process depends on the tissue forming properties of a group of stem cells called the cambium, which produce secondary vascular tissue (wood and bast). We will now leverage the unique features of the cambium to establish general principles of stem cell niche organization in plants and beyond. To this end, we will test the hypothesis that a spatio-temporal modulation of signaling through the plant hormone strigolactone (SL) within the cambium domain is essential for an organized production of tissues during radial plant growth. In close collaboration with project B01, we will in particular investigate the role of the stem cell-specific homeobox transcription factors WOX4 and WUS in promoting SL signaling as one essential feature of plant stem cell systems.

植物地上部和根部的径向生长对于木材和大型植物生物体的形成是必不可少的，从而对生物量的产生也是必不可少的。这一过程取决于一组被称为形成层的干细胞的组织形成特性，形成层产生次级维管组织(木材和树皮)。我们现在将利用形成层的独特特征来建立植物内外干细胞生态位组织的一般原则。为此，我们将检验这样的假设，即在形成层区域内通过植物激素Strigolacone(SL)对信号进行时空调制对于辐射植物生长过程中组织的有组织生产是必不可少的。在与B01项目的密切合作下，我们将特别研究干细胞特异性同源框转录因子WOX4和WUS在促进SL信号作为植物干细胞系统的一个基本特征方面的作用。