当前位置：
X-MOL 学术
›
J. Integr. Plant Biol.
›
论文详情
Our official English website, www.x-mol.net, welcomes your
feedback! (Note: you will need to create a separate account there.)
OsCYCP4s coordinate phosphate starvation signaling with cell cycle progression in rice.
Journal of Integrative Plant Biology ( IF 9.3 ) Pub Date : 2019-12-09 , DOI: 10.1111/jipb.12885 Lei Xu 1, 2 , Fang Wang 1 , Ruili Li 3 , Minjuan Deng 1 , Meilan Fu 4 , Huiying Teng 4 , Keke Yi 2
Journal of Integrative Plant Biology ( IF 9.3 ) Pub Date : 2019-12-09 , DOI: 10.1111/jipb.12885 Lei Xu 1, 2 , Fang Wang 1 , Ruili Li 3 , Minjuan Deng 1 , Meilan Fu 4 , Huiying Teng 4 , Keke Yi 2
Affiliation
|
Phosphate starvation leads to a strong reduction in shoot growth and yield in crops. The reduced shoot growth is caused by extensive gene expression reprogramming triggered by phosphate deficiency, which is not itself a direct consequence of low levels of shoot phosphorus. However, how phosphate starvation inhibits shoot growth in rice is still unclear. In this study, we determined the role of OsCYCP4s in the regulation of shoot growth in response to phosphate starvation in rice. We demonstrate that the expression levels of OsCYCP4s, except OsCYCP4;3, were induced by phosphate starvation. Overexpression of the phosphate starvation induced OsCYCP4s could compete with the other cyclins for the binding with cyclin‐dependent kinases, therefore suppressing growth by reducing cell proliferation. The phosphate starvation induced growth inhibition in the loss‐of‐function mutants cycp4;1, cycp4;2, and cycp4;4 is partially compromised. Furthermore, the expression of some phosphate starvation inducible genes is negatively modulated by these cyclins, which indicates that these OsCYCP4s may also be involved in phosphate starvation signaling. We conclude that phosphate starvation induced OsCYCP4s might coordinate phosphate starvation signaling and cell cycle progression under phosphate starvation stress.
中文翻译：
OsCYCP4s在水稻中协调磷酸饥饿信号与细胞周期进程。
磷酸盐饥饿导致作物的新梢生长和单产大幅下降。枝条生长减少是由于磷酸盐缺乏引发的广泛基因表达重编程所致，这本身并不是枝条磷水平低的直接结果。然而，磷酸盐饥饿如何抑制水稻芽生长尚不清楚。在这项研究中，我们确定了OsCYCP4s在调节水稻响应磷饥饿的芽生长中的作用。我们证明的表达水平OsCYCP4s，除了OsCYCP4; 3，通过磷酸盐饥饿诱导。磷酸饥饿诱导的OsCYCP4s的过表达可以与其他细胞周期蛋白竞争与细胞周期蛋白依赖性激酶的结合，从而通过减少细胞增殖来抑制生长。磷酸饥饿导致功能丧失突变体cycp4; 1，cycp4; 2和cycp4; 4的生长抑制受到部分损害。此外，这些细胞周期蛋白对某些磷酸饥饿诱导基因的表达有负调节作用，这表明这些OsCYCP4s也可能参与了磷酸饥饿信号传导。我们得出的结论是，磷酸盐饥饿诱导的OsCYCP4s可能会在磷酸盐饥饿胁迫下协调磷酸盐饥饿信号传导和细胞周期进程。
更新日期：2019-12-09
中文翻译：
OsCYCP4s在水稻中协调磷酸饥饿信号与细胞周期进程。
磷酸盐饥饿导致作物的新梢生长和单产大幅下降。枝条生长减少是由于磷酸盐缺乏引发的广泛基因表达重编程所致，这本身并不是枝条磷水平低的直接结果。然而，磷酸盐饥饿如何抑制水稻芽生长尚不清楚。在这项研究中，我们确定了OsCYCP4s在调节水稻响应磷饥饿的芽生长中的作用。我们证明的表达水平OsCYCP4s，除了OsCYCP4; 3，通过磷酸盐饥饿诱导。磷酸饥饿诱导的OsCYCP4s的过表达可以与其他细胞周期蛋白竞争与细胞周期蛋白依赖性激酶的结合，从而通过减少细胞增殖来抑制生长。磷酸饥饿导致功能丧失突变体cycp4; 1，cycp4; 2和cycp4; 4的生长抑制受到部分损害。此外，这些细胞周期蛋白对某些磷酸饥饿诱导基因的表达有负调节作用，这表明这些OsCYCP4s也可能参与了磷酸饥饿信号传导。我们得出的结论是，磷酸盐饥饿诱导的OsCYCP4s可能会在磷酸盐饥饿胁迫下协调磷酸盐饥饿信号传导和细胞周期进程。
京公网安备 11010802027423号