期刊
JOURNAL OF EXPERIMENTAL BOTANY
卷 72, 期 19, 页码 6755-6767出版社
OXFORD UNIV PRESS
DOI: 10.1093/jxb/erab332
关键词
Arabidopsis; longitudinal patterning; miRNAs; proximo-distal patterning; root development; stem cells
资金
- FIRB (Futuro in Ricerca 2013) project grant from the Ministero dell'Istruzione, dell'Universita e della Ricerca [FIRB2013-RBFR13DCDS]
Root meristem is crucial for root development, containing self-renewing stem cells that continuously produce new root cells. miRNAs and other molecular networks play essential roles in regulating meristem function and patterning to ensure proper root growth, adaptation to environmental changes, and maintenance of correct patterning.
In both animal and plants, establishment of body axes is fundamental for proper organ development. Plant roots show two main developmental axes: the proximo-distal axis, which spans from the hypocotyl-root junction to the root tip; and the radial axis, which traverses from the vascular tissue to the epidermis. Root axes are determined in the root meristem. The root meristem occupies the tip of the root and contains self-renewing stem cells, which continuously produce new root cells. An intricate network of signalling pathways regulates meristem function and patterning to ensure proper root development and growth. In the last decade, miRNAs, 20-21 nucleotide-long molecules with morphogenetic activity, emerged as central regulators of root cell patterning. Their activity intersects with master regulators of meristematic activity, including phytohormones. In this review, we discuss the latest findings about the activity of miRNAs and their interaction with other molecular networks in the formation of root meristem axes. Furthermore, we describe how these small molecules allow root growth to adapt to changes in the environment, while maintaining the correct patterning.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据