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Identification of Post-translational Modifications of Plant Protein Complexes
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Chloroplast immunity illuminated.

George R Littlejohn1, Susan Breen2, Nicholas Smirnoff3

  • 1School of Biological and Marine Sciences, University of Plymouth, Plymouth, PL4 8AA, UK.

The New Phytologist
|November 18, 2020
PubMed
Summary
This summary is machine-generated.

The chloroplast plays a key role in plant immunity, coordinating defense against pathogens. It integrates signals and produces compounds that help plants fight off infections, but pathogens also target this vital organelle.

Keywords:
PAMP-triggered immunity (PTI)chloroplast immunityeffector-triggered immunity (ETI)electron transportphotosystemreactive oxygen species (ROS)

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Area of Science:

  • Plant Biology
  • Molecular Plant Pathology
  • Organelle Biology

Background:

  • Chloroplasts are central to photosynthesis and metabolism, making them crucial for plant survival.
  • They integrate environmental signals and are involved in plant defense pathways.
  • Pathogens exploit chloroplast functions for virulence, targeting chloroplast immunity.

Purpose of the Study:

  • To review the chloroplast's role in plant immunity against pathogens.
  • To explore how chloroplasts perceive and respond to biotic stresses.
  • To discuss pathogen strategies targeting chloroplast immunity.

Main Methods:

  • Literature review of existing research on chloroplasts and plant immunity.
  • Analysis of phytohormone modulation and reactive oxygen species signaling.
  • Assessment of transcriptional reprogramming of nuclear-encoded chloroplast genes.

Main Results:

  • Chloroplasts contribute to pattern-triggered and effector-triggered immunity.
  • Phytohormones and reactive oxygen species (ROS) are key mediators of chloroplast immunity.
  • Pathogens evolve strategies to target chloroplast functions and immunity.

Conclusions:

  • Chloroplasts are integral to plant defense, coordinating responses to pathogens.
  • Understanding chloroplast immunity is crucial for developing disease-resistant crops.
  • Future research should focus on chloroplast-pathogen interactions and signaling pathways.