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Nucleolar actions in plant development and stress responses
Soeui Lee1,2, Ye-Eun Seo1,2,3, Jeen Choi1,2,3
1Plant Immunity Research Center, Seoul National University, Seoul, South Korea.
Plant, Cell & Environment
|August 22, 2024
Summary
The nucleolus, known for ribosome synthesis, also regulates plant cell cycles, development, and stress responses. Understanding its role in plant immunity and stress adaptation is key for crop resilience.
Area of Science:
- Plant Biology
- Molecular Biology
- Cell Biology
Background:
- The nucleolus is traditionally recognized for ribosomal RNA (rRNA) synthesis and ribosome biogenesis.
- Emerging evidence highlights the nucleolus's crucial roles in plant cell cycle regulation, development, and environmental stress responses.
- Nuclear liquid-liquid phase separation is a potential area of nucleolar function.
Purpose of the Study:
- To comprehensively review the diverse functions of the nucleolus in plant growth and development.
- To explore the nucleolus's involvement in plant responses to both abiotic and biotic stresses.
- To provide insights into how nucleolar functions can be leveraged for enhancing crop resilience.
Main Methods:
- Literature review of existing research on nucleolar functions in plants.
- Analysis of studies on nucleolar proteins and their impact on plant development.
- Examination of research detailing nucleolar responses to various environmental stresses.
Main Results:
- Nucleolar proteins significantly influence plant growth, development, and embryogenesis, with mutations impacting these processes.
- Nucleoli exhibit structural alterations under abiotic stress conditions.
- Pathogens target the nucleolus during biotic stress, manipulating host immunity to promote infection.
Conclusions:
- The nucleolus plays a critical, multifaceted role in plant biology beyond ribosome production.
- Understanding nucleolus-pathogen interactions offers insights into plant immunity and stress tolerance.
- Targeting nucleolar functions presents potential strategies for improving crop resilience against environmental challenges.
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