Research Progress on the Immune Regulation of Symbiotic Nitrogen Fixation Between Legumes and Rhizobia

doi:10.13560/j.cnki.biotech.bull.1985.2019-0716

Abstract

Abstract: In the long-term evolution,rhizobia and legume have formed a specific mutualistic relationship：symbiotic nitrogen fixation. Rhizobia and legume interact in a very similar way as that pathogens stimulate plant pathogen response. However,rhizobial invasion and colonization do not activate the excessive defense response in their host plants,and plants also have evolved special symbiotic signal transduction and nodule development pathways to “invite” rhizobia. In addition,plant innate immunity regulates the host specificity of rhizobia to legumes. Recent studies have shown that plant defense response plays a key role in the regulation of rhizobia recognition,invasion,colonization and bacteroid development. We review the recent progress of symbiotic interaction between rhizobia and legume from the perspective of plant immune response,and discuss the regulatory mechanism of immune response induced by rhizobial MAMP and effectors through comparing interaction between pathogen and plant.

Key words: plant innate immunity, symbiosis, legumes, rhizobia

DONG Ru, CAO Yang-rong. Research Progress on the Immune Regulation of Symbiotic Nitrogen Fixation Between Legumes and Rhizobia[J]. Biotechnology Bulletin, 2019, 35(10): 25-33.

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