The Key Laboratory of Plant Cell Engineering and Germplasm Innovation, Ministry of Education, School of Life Sciences, Shandong University, Jinan, People's Republic of China.
Plant Cell Rep. 2014 May;33(5):745-53. doi: 10.1007/s00299-014-1575-x. Epub 2014 Feb 7.
The core regulators which are required for primary root growth and development also function in lateral root development or lateral root stem cell niche maintenance. The primary root systems and the lateral root systems are the two important root systems which are vital to the survival of plants. Though the molecular mechanism of the growth and development of both the primary root systems and the lateral root systems have been extensively studied individually in Arabidopsis, there are not so much evidence to show that if both root systems share common regulatory mechanisms. AP2 family transcription factors such as PLT1 (PLETHORA1) and PLT2, GRAS family transcription factors such as SCR (SCARECROW) and SHR (SHORT ROOT) and WUSCHEL-RELATED HOMEOBOX transcription factor WOX5 have been extensively studied and found to be essential for primary root growth and development. In this study, through the expression pattern analysis and mutant examinations, we found that these core regulators also function in lateral root development or lateral root stem cell niche maintenance.
对于主根生长和发育所必需的核心调控因子，同样也在侧根发育或侧根干细胞壁龛维持中发挥作用。主根系统和侧根系统是对植物生存至关重要的两个重要根系。尽管在拟南芥中，已经对主根系统和侧根系统的生长和发育的分子机制进行了广泛的研究，但没有太多证据表明这两个根系是否共享共同的调控机制。AP2 家族转录因子，如 PLT1（PLETHORA1）和 PLT2、GRAS 家族转录因子，如 SCR（SCARECROW）和 SHR（SHORT ROOT）以及 WUSCHEL-RELATED HOMEOBOX 转录因子 WOX5，已经被广泛研究并发现对主根生长和发育是必不可少的。在这项研究中，通过表达模式分析和突变体检测，我们发现这些核心调控因子也在侧根发育或侧根干细胞壁龛维持中发挥作用。
