Biotechnology Bulletin ›› 2018, Vol. 34 ›› Issue (2): 87-95.doi: 10.13560/j.cnki.biotech.bull.1985.2017-0793

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Research Progress on Epigenetic Regulation in Rice/Arabidopsis Against Attack of Pathogenic Bacteria

XU Yi-hua1,2, LI Qi-qin2, LIU Lian-meng1, WANG Ling1, DING Xin-hua3, HOU Yu-xuan1, HUANG Shi-wen1,2   

  1. 1. State key Laboratory of Rice Biology,China National Rice Research Institute,Hangzhou 310006;
    2. College of Agronomy,Guangxi University,Nanning 530003;
    3. College of Plant protection,Shandong Agricultural University,Tai’an 271018;
  • Received:2017-09-20 Online:2018-02-26 Published:2018-03-12

Abstract: Epigenetic modification,which refers to regulate the gene expression by reversible covalent modifications of DNA and histone without altering the DNA sequences,plays very important roles in plant responses to biological or abiotic stresses as well as the adaptation to changing environment. Recently,emerging evidences have shown that epigenetic controlling is involved in the immune response of rice and Arabidopsis to pathogenic bacterial infection(including effect recognition,signal transduction,and rapid defense response). In this review,we summarized the functions and molecular regulatory mechanisms of epigenetic modifications in defense responses against pathogenic bacteria in rice and Arabidopsis,such as genomic DNA methylation,histone modifications(methylation/demethylation,histone acetylation/deacetylation and ubiquitination)and small RNA. It helps to better understand epigenetic regulation in defense,and to provide theoretical support and gene resources for the crop breeding of disease resistance.

Key words: epigenetics, rice /Arabidopsis, pathogenic bacteria, disease-resistance