REVIEW article
Front. Plant Sci.
Sec. Plant Physiology
Volume 16 - 2025 | doi: 10.3389/fpls.2025.1665328
This article is part of the Research TopicBamboo: A Multidimensional Exploration from Genes to Ecosystem ServicesView all articles
Gibberellin-mediated internode elongation in grasses with a focus on bamboo: Molecular pathways and regulatory networks
Provisionally accepted
Lei Dai1
Xiumin Zhao1Shiying Liu1Krishnamurthi Keerthana1Venkatesan Vijayakanth1Yongqi Zhi2
Feng Que1
Muthusamy Ramakrishnan1
Zishan Ahmad1*
Qiang Wei1*- 1Nanjing Forestry University Bamboo Research Institute, Nanjing, China
- 2Agriculture Academy of Shaoxing, Shaoxing 312000, China, Shaoxing, China
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Internode elongation in Poaceae plants significantly influences stem development and grain yield. Gibberellin (GA), a key hormone, regulates this elongation and overall development. In cereal members of Poaceae, such as rice and wheat, the application of dwarfing genes involved in GA metabolism or signaling pathways during the Green Revolution led to increase grain yields, underscoring GA's importance in plant breeding. Although bamboo was not a part of this historical context, optimizing its growth requires an understanding of GA-mediated internode control. This review systematically elucidates the molecular framework of GA-regulated internode elongation in Poaceae, with a specific focus on bamboo. It examines GA's biosynthetic pathway, metabolic regulation, and signal transduction mechanisms. The review also discusses how GA interacts with other hormone pathways to regulate internode growth and suggests future research directions. Finally, this review provides a reference for a deeper understanding of the molecular mechanisms behind GA-regulated bamboo internode growth and its potential application in bamboo breeding.
Keywords: gibberellin, hormone interaction, Poaceae, Bamboo growth, Epigenetic regulation
Received: 14 Jul 2025; Accepted: 21 Aug 2025.
Copyright: © 2025 Dai, Zhao, Liu, Keerthana, Vijayakanth, Zhi, Que, Ramakrishnan, Ahmad and Wei. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
* Correspondence:
Zishan Ahmad, Nanjing Forestry University Bamboo Research Institute, Nanjing, China
Qiang Wei, Nanjing Forestry University Bamboo Research Institute, Nanjing, China
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