Related Experiment Video
Updated: Sep 22, 2025

Scalable, Flexible, and Cost-Effective Seedling Grafting
Published on: January 6, 2023
It's Time for a Change: The Role of Gibberellin in Root Meristem Development
Margaryta Shtin1, Raffaele Dello Ioio1, Marta Del Bianco2
1Department of Biology and Biotechnology "C. Darwin", Laboratory of Functional Genomics and Proteomics of Model Systems, University of Rome "Sapienza", Rome, Italy.
Abstract:
One of the most amazing characteristics of plants is their ability to grow and adapt their development to environmental changes. This fascinating feature is possible thanks to the activity of meristems, tissues that contain lasting self-renewal stem cells. Because of its simple and symmetric structure, the root meristem emerged as a potent system to uncover the developmental mechanisms behind the development of the meristems. The root meristem is formed during embryogenesis and sustains root growth for all the plant's lifetime. In the last decade, gibberellins have emerged as a key regulator for root meristem development. This phytohormone functions as a molecular clock for root development. This mini review discusses the latest advances in understanding the role of gibberellin in root development and highlights the central role of this hormone as developmental timer.
Related Concept Videos
Meristems and Plant Growth
Primary and Secondary Growth in Roots and Shoots
Morphogenesis
Cell Signaling in Plants
Plant Hormones
Responses to Gravity and Touch

