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A moving view: subcellular trafficking processes in pattern recognition receptor-triggered plant immunity.

Sara Ben Khaled1, Jelle Postma, Silke Robatzek

  • 1The Sainsbury Laboratory, Norwich Research Park, Norwich, NR4 7UH, United Kingdom;

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Plants use subcellular trafficking to move immune receptors like FLS2 to the plasma membrane for pathogen detection. This process is crucial for localized plant defense against invaders.

Keywords:
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Area of Science:

  • Plant immunity and cellular transport mechanisms.

Background:

  • Plants require localized defense responses at pathogen attack sites.
  • Subcellular trafficking facilitates the accumulation and exchange of defense compounds.
  • Pathogens can manipulate host membrane trafficking via effectors.

Purpose of the Study:

  • To review current understanding of transport processes facilitating plant immunity.
  • To highlight the role of pattern recognition receptors (PRRs) in immunity.
  • To focus on FLS2 receptor localization and its regulation by transport pathways.

Main Methods:

  • Review of existing literature on plant immune responses and trafficking pathways.
  • Analysis of studies investigating pattern recognition receptor (PRR) dynamics.
  • Focus on the FLS2 receptor's localization and transport mechanisms.

Main Results:

  • Pattern recognition receptors (PRRs) are key immune cargos that must reach the plasma membrane.
  • Pathogens actively reprogram host membrane trafficking to their advantage.
  • Ligand-induced endocytic trafficking is a conserved mechanism across PRR families and plant species.

Conclusions:

  • Subcellular transport is vital for establishing localized plant defenses.
  • Understanding receptor trafficking pathways is key to deciphering plant immunity.
  • Conserved endocytic trafficking mechanisms underscore the importance of receptor localization in plant defense.