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Epigenetic memory and priming in plants.

Neslihan Turgut-Kara1, Burcu Arikan2, Haluk Celik3

  • 1Department of Molecular Biology and Genetics, Faculty of Science, Istanbul University, Vezneciler, 34134, Istanbul, Turkey. neslihantk@istanbul.edu.tr.

Genetica
|May 2, 2020
PubMed
Summary

Plants utilize epigenetic mechanisms, including DNA methylation and histone modifications, to develop stress memory in response to environmental cues. This stress memory can be inherited, enhancing plant resilience and productivity.

Keywords:
DNA methylationEpigeneticHistone modificationsPrimingStress memory

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Area of Science:

  • Plant Biology
  • Epigenetics
  • Stress Physiology

Background:

  • Plants face constant biotic and abiotic stresses, threatening survival.
  • Plants have evolved epigenetic mechanisms for physiological adaptation and stress memory.
  • Environmental signals induce stress memory via epigenetic modifications.

Purpose of the Study:

  • To review epigenetic memory mechanisms in plants under stress.
  • To explore the link between priming and epigenetic memory.
  • To identify knowledge gaps for developing stress-resistant plants.

Main Methods:

  • Literature review of epigenetic mechanisms (DNA methylation, histone modifications, small RNAs).
  • Analysis of stress-induced environmental memory in plants.
  • Examination of the relationship between priming and epigenetic memory.

Main Results:

  • Epigenetic modifications mediate stress-induced environmental memory.
  • These modifications, including DNA methylation and histone changes, control gene expression.
  • Stress memory can be transmitted across generations, offering adaptive advantages.

Conclusions:

  • Epigenetic memory is crucial for plant adaptation to diverse environmental cues.
  • Understanding these mechanisms can guide the development of more resilient and productive crops.
  • Further research is needed to fully elucidate plant memory mechanisms for agricultural applications.