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Updated: Feb 17, 2026

Lateral Root Inducible System in Arabidopsis and Maize
Published on: January 14, 2016
Control of Endogenous Auxin Levels in Plant Root Development
Damilola Olatunji1, Danny Geelen2, Inge Verstraeten3,4
1Department of Plant Production, Faculty of Bioscience Engineering, Ghent University, Coupure Links 653, 9000 Gent, Belgium. Damilola.olatunji@ugent.be.
Abstract:
In this review, we summarize the different biosynthesis-related pathways that contribute to the regulation of endogenous auxin in plants. We demonstrate that all known genes involved in auxin biosynthesis also have a role in root formation, from the initiation of a root meristem during embryogenesis to the generation of a functional root system with a primary root, secondary lateral root branches and adventitious roots. Furthermore, the versatile adaptation of root development in response to environmental challenges is mediated by both local and distant control of auxin biosynthesis. In conclusion, auxin homeostasis mediated by spatial and temporal regulation of auxin biosynthesis plays a central role in determining root architecture.
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