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Epitranscriptomic RNA Methylation in Plant Development and Abiotic Stress Responses
Jianzhong Hu1, Stefano Manduzio1, Hunseung Kang1
1Department of Applied Biology, College of Agriculture and Life Sciences, Chonnam National University, Gwangju, South Korea.
Frontiers in Plant Science
|May 22, 2019
Summary
RNA methylation, including N6-methyladenosine (m6A) and 5-methylcytidine (m5C), regulates gene expression in plants. Key factors like writers, readers, and erasers are vital for plant growth and stress responses.
Area of Science:
- Molecular Biology
- Plant Science
- Genetics
Background:
- Eukaryotic mRNAs exhibit widespread chemical modifications, primarily N6-methyladenosine (m6A) and 5-methylcytidine (m5C).
- Cellular factors, termed 'writers' (methyltransferases), 'readers' (RNA-binding proteins), and 'erasers' (demethylases), mediate these mRNA methylation marks.
- These modifications influence fundamental RNA metabolic processes, including stability, splicing, export, and translation.
Purpose of the Study:
- To review the critical roles of epitranscriptomic RNA modifications in plants.
- To highlight the significance of methylation regulators (writers, readers, erasers) in plant development and response to abiotic stresses.
Main Methods:
- Review of recent scientific literature.
- Analysis of findings from methylated RNA immunoprecipitation followed by sequencing (MeRIP-seq) and mass spectrometry.
Main Results:
- Methylation marks on plant mRNAs are crucial for regulating gene expression.
- Identified 'writers,' 'readers,' and 'erasers' are essential for plant growth and adaptation to abiotic stresses.
- Epitranscriptomic modifications provide a new regulatory layer in plant biology.
Conclusions:
- RNA methylation is a vital epigenetic mechanism in plants, impacting growth and stress tolerance.
- Further research into plant epitranscriptomics is essential for understanding gene regulation and developing resilient crops.
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