Role of small RNAs in the interaction between Arabidopsis and Pseudomonas syringae |
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Authors: | Yan LI Wenming WANG Jian-Min ZHOU |
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Affiliation: | 1. Rice Research Institute, Sichuan Agricultural University, Wenjiang 611130, China 2. National Institute of Biological Sciences, Beijing, Beijing 102206, China |
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Abstract: | Endogenous small RNAs (miRNAs and siRNAs) regulate gene expression in diverse biological processes. Research with the Arabidopsis-Pseudomonas syringae system has shown that small RNAs contribute to plant immunity by regulating the expression of their target genes. Plant immunity can be triggered by pathogen-associated molecular patterns (PAMPs) or effector proteins that are delivered into the host cell by the pathogen. Experimental evidence indicates that the miRNA pathway play a major role in PAMP-triggered immunity while some of the siRNA pathways appear to be more important in effector-triggered immunity. In addition, some P. syringae effector proteins appear to inhibit miRNA biogenesis or function to enhance bacterial virulence. These exciting findings illustrate a new battle ground for plant-pathogen interactions. |
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Keywords: | miRNA siRNA PTI ETI effectors |
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