Role of Small RNAs in Host-Microbe Interactions

被引:236
作者
Katiyar-Agarwal, Surekha [1 ]
Jin, Hailing [2 ,3 ]
机构
[1] Univ Delhi S Campus, Dept Plant Mol Biol, New Delhi 110021, India
[2] Univ Calif Riverside, Dept Plant Pathol, Ctr Plant Cell Biol, Inst Integrat Genome Biol, Riverside, CA 92521 USA
[3] Univ Calif Riverside, Dept Microbiol, Ctr Plant Cell Biol, Inst Integrat Genome Biol, Riverside, CA 92521 USA
来源
ANNUAL REVIEW OF PHYTOPATHOLOGY, VOL 48 | 2010年 / 48卷
关键词
miRNAs; siRNAs; dicer; argonaute; RNA silencing suppressors; DICER-LIKE PROTEINS; SILENCING-MEDIATED DEFENSE; DSRNA-BINDING PROTEINS; ENDOGENOUS SMALL RNAS; GENOME-WIDE ANALYSIS; MOSAIC-VIRUS; DNA METHYLATION; ANTIVIRAL DEFENSE; NITRIC-OXIDE; ARABIDOPSIS;
D O I
10.1146/annurev-phyto-073009-114457
中图分类号
Q94 [植物学];
学科分类号
071001 ;
摘要
Plant defense responses against pathogens are mediated by activation and repression of a large array of genes. Host endogenous small RNAs are essential in this gene expression reprogramming process. Here, we discuss recent findings on pathogen-regulated host microRNAs (miRNAs) and small interfering RNAs (siRNAs) and their roles in plant-microbe interaction. We further introduce small RNA pathway components, including Dicer-like proteins (DCLs), double-stranded RNA (dsRNA) binding protein, RNA-dependent RNA polymerases (RDRs), small RNA methyltransferase HEN1, and Argonaute (AGO) proteins, that contribute to plant immune responses. The strategies that pathogens have evolved to suppress host small RNA pathways are also discussed. Collectively, host small RNAs and RNA silencing machinery constitute a critical layer of defense in regulating the interaction of pathogens with plants.
引用
收藏
页码:225 / 246
页数:22
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