Wang Junxia, Su Yinghua, Kong Xiangpei, Ding Zhaojun, Zhang Xian Sheng
The Key Laboratory of Plant Development and Environmental Adaptation Biology, Ministry of Education, College of Life Sciences, Shandong University, Qingdao, 266237 Shandong China.
State Key Laboratory of Crop Biology, College of Life Sciences, Shandong Agricultural University, Tai'an, 271018 Shandong China.
aBIOTECH. 2020 May 4;1(3):194-204. doi: 10.1007/s42994-020-00020-3. eCollection 2020 Jul.
Plant stem cells are a small group of cells with a self-renewal capacity and serve as a steady supply of precursor cells to form new differentiated tissues and organs in plants. Root stem cells and shoot stem cells, which are located in the root apical meristem and in the shoot apical meristem, respectively, play a critical role in plant longitudinal growth. These stem cells in shoot and root apical meristems remain as pluripotent state throughout the lifespan of the plant and control the growth and development of plants. The molecular mechanisms of initiation and maintenance of plant stem cells have been extensively investigated. In this review, we mainly discuss how the plant phytohormones, such as auxin and cytokinin, coordinate with the key transcription factors to regulate plant stem cell initiation and maintenance in root and shoot apical meristems. In addition, we highlight the common regulatory mechanisms of both root and shoot apical meristems.
植物干细胞是一小群具有自我更新能力的细胞，它们作为前体细胞的稳定来源，在植物中形成新的分化组织和器官。根干细胞和茎干细胞分别位于根尖分生组织和茎尖分生组织中，在植物纵向生长中起关键作用。这些茎尖和根尖分生组织中的干细胞在植物的整个生命周期中都保持多能状态，并控制着植物的生长和发育。植物干细胞起始和维持的分子机制已得到广泛研究。在这篇综述中，我们主要讨论植物激素，如生长素和细胞分裂素，如何与关键转录因子协同作用，以调节根和茎尖分生组织中植物干细胞的起始和维持。此外，我们强调了根尖和茎尖分生组织的共同调控机制。
