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Related Experiment Video

Updated: Jun 27, 2025

Genome-wide Analysis of Histone Modifications Distribution using the Chromatin Immunoprecipitation Sequencing Method in Magnaporthe oryzae
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Bivalent histone modifications: how phytopathogens evade plant immunity.

Guangfei Tang1, Wende Liu1

  • 1State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China.

Trends in Plant Science
|April 30, 2024
PubMed
Summary

Plant immunity involves epigenetic regulation. Bivalent chromatin-marked gene 1 (BCG1) uses histone modifications (H3K4me3 and H3K27me3) to evade immune responses during plant-microbe interactions.

Keywords:
BCG1PAMPbivalent histone modificationsplant immunity

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Area of Science:

  • Plant biology
  • Epigenetics
  • Plant-microbe interactions

Background:

  • Bivalent histone modifications are crucial for gene expression during development.
  • Their role in plant-microbe interactions remains largely unexplored.

Purpose of the Study:

  • To investigate the function of bivalent histone modifications in plant immunity against microbial pathogens.
  • To understand the epigenetic regulation of genes involved in evading plant immune responses.

Main Methods:

  • Analysis of gene expression patterns.
  • Chromatin immunoprecipitation to assess histone modifications (H3K4me3 and H3K27me3).
  • Investigating the role of bivalent chromatin-marked gene 1 (BCG1) and its PAMP motif.

Main Results:

  • Zhao et al. demonstrated that BCG1 expression is epigenetically controlled by H3K4me3 and H3K27me3.
  • These modifications enable the gene to evade detection by the plant's immune system.

Conclusions:

  • Bivalent histone modifications play a significant role in modulating plant responses during pathogen attack.
  • Epigenetic regulation of BCG1 is a key mechanism for pathogens to suppress plant immunity.