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Phosphoproteomic Strategy for Profiling Osmotic Stress Signaling in Arabidopsis
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Stress priming, memory, and signalling in plants.

Monika Hilker1, Thomas Schmülling2

  • 1Dahlem Centre of Plant Sciences (DCPS), Institute of Biology/Applied Zoology & Ecology, Freie Universität Berlin, D-14163, Berlin, Germany.

Plant, Cell & Environment
|February 20, 2019
PubMed
Summary

Plants possess stress memory, enabling quicker, stronger responses to recurring environmental challenges. This priming involves epigenetic and molecular mechanisms for enhanced survival.

Keywords:
abiotic stressautophagybiotic stressepigeneticsposttranslational modificationstress memorytranscription factor

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Area of Science:

  • Plant Biology
  • Environmental Stress Response
  • Molecular Ecology

Background:

  • Plants face diverse environmental stresses (light, temperature, water, nutrients, pests).
  • Survival necessitates robust sensing, signaling, and response mechanisms.
  • Stress responses are often inducible and resource-saving, activated upon stress perception.

Discussion:

  • Plants exhibit stress memory, priming responses to subsequent stress events.
  • Mechanisms include epigenetic regulation, transcriptional priming, protein conformation, and hormonal/metabolic signatures.
  • Ecological relevance and constraints of stress priming and memory are increasingly understood.

Key Insights:

  • Stress memory allows plants to 'remember' past stress for faster, stronger future reactions.
  • Information storage and retrieval involve complex molecular and epigenetic pathways.
  • Priming enhances plant resilience and survival in variable environments.

Outlook:

  • Further research into the ecological implications of plant stress memory.
  • Exploring novel applications of stress priming for crop improvement.
  • Investigating the full spectrum of molecular mechanisms underlying stress memory.