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Published on: July 19, 2017
Epigenetic Environmental Memories in Plants: Establishment, Maintenance, and Reprogramming
1Shanghai Center for Plant Stress Biology & National Key Laboratory of Plant Molecular Genetics, CAS Center for Excellence in Molecular Plant Sciences, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences (CAS), Shanghai 201602, China; Shanghai Chenshan Plant Science Research Center, Chinese Academy of Sciences, Shanghai 201602, China.
Plants can remember environmental conditions through epigenetic modifications, allowing them to adapt better to recurring challenges. This epigenetic environmental memory enhances plant survival and performance.
Area of Science:
- Plant Biology
- Epigenetics
- Environmental Science
Background:
- Plants face fluctuating environmental conditions and must adapt.
- Environmental factors can induce changes in gene expression via chromatin modifications.
- These modifications can be heritable, leading to acquired environmental memories in plants.
Purpose of the Study:
- To review recent advancements in understanding epigenetic environmental memories in plants.
- To highlight the role of chromatin modifications in plant adaptation.
- To discuss mechanisms like defense priming, stress memories, and vernalization.
Main Methods:
- Review of recent scientific literature on plant epigenetics and environmental interactions.
- Analysis of epigenetic mechanisms underlying plant responses to environmental cues.
- Synthesis of findings on inherited epigenetic marks and their functional significance.
Main Results:
- Environmental inputs induce heritable chromatin modifications in plants.
- These epigenetic marks confer 'memory' of past environmental experiences.
- Examples include defense priming, stress tolerance, and vernalization.
Conclusions:
- Epigenetic environmental memories are crucial for plant adaptation.
- Plant environmental epigenetics is a rapidly developing and significant field.
- Understanding these mechanisms can improve plant resilience and performance.
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