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Lateral Root Inducible System in Arabidopsis and Maize
Published on: January 14, 2016
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Adventitious lateral rooting: the plasticity of root system architecture
Yachao Ge1,2, Xing Fang1,2, Wu Liu1
1National Key Laboratory of Plant Molecular Genetics, CAS Center for Excellence in Molecular Plant Sciences, Institute of Plant Physiology and Ecology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai, 200032, China.
Physiologia Plantarum
|April 1, 2018
Summary
Adventitious lateral roots (adLRs) form from the primary root (PR) in Arabidopsis thaliana, guided by the WOX11 pathway in response to environmental cues. This discovery highlights root plasticity and novel root development mechanisms.
Area of Science:
- Plant biology
- Developmental biology
- Genetics
Background:
- Root development is plastic and responds to environmental signals.
- Lateral root (LR) development typically follows a distinct pathway.
- The WUSCHEL-RELATED HOMEOBOX11 (WOX11) gene is known to mediate adventitious root formation.
Purpose of the Study:
- To investigate the role of WOX11 in primary root (PR)-derived root formation.
- To characterize a novel type of root development in response to wounding and environmental signals.
- To understand the plasticity of root system architecture.
Main Methods:
- Arabidopsis thaliana genetic analysis
- Observation of root formation under specific stimuli
- Molecular pathway investigation
Main Results:
- WOX11-mediated adventitious root formation occurs in the primary root (PR) of Arabidopsis thaliana.
- These PR-derived roots are a distinct type, termed adventitious lateral roots (adLRs).
- This process differs from canonical LR development and is triggered by wounding or environmental signals.
Conclusions:
- The WOX11 pathway is crucial for adLR formation from the PR.
- Root development is more plastic than previously understood, with PRs capable of forming adLRs.
- Studying adLRs is key to understanding root system plasticity in response to environmental factors.
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