Insights into the regulation of the core clock component TOC1 in the green picoeukaryote Ostreococcus
Insights into the regulation of the core clock component TOC1 in the green picoeukaryote Ostreococcus
复制标题
DOI：
10.4161/psb.5.3.11212
复制
发表时间：
2010-01-01
影响因子：
2.9
通讯作者：
Corellou, Florence
中科院分区：
文献类型：
--
作者：
Djouani-Tahri, El Batoul;Motta, Jean-Paul;Corellou, Florence
生物体如植物和动物已经进化出内源性时钟，以便预测与地球自转相关的环境变化，并在24小时的每日循环过程中协调生物过程。我们最近确定了原始的绿色微红葡萄球菌的时钟组件，一个有前途的最小的细胞和基因组模型的系统生物学方法。拟南芥核心时钟基因CAB表达时间1（TOC1）的同源物被证明在Ostreococcus中发挥核心作用，预示着绿色谱系中时钟组件的早期出现。在这里，我们报告的调节TOC1在黄昏时响应光和暗的线索。
Living organisms such as plants and animals have evolved endogenous clocks in order to anticipate the environmental changes associated with the earth's rotation and to orchestrate biological processes in the course of the 24 hour daily cycle. We have recently identified clock components in the primitive green picoalga Ostreococcus tauri, a promising minimal cellular and genomic model for systems biology approaches. A homologue of the Arabidopsis core clock gene Time of CAB expression-1 (TOC1) was shown to play a central role in Ostreococcus heralding an early emergence of clock components in the green lineage. Here we report the regulation of TOC1 at dusk in response to light and dark cues.