Journal
JOURNAL OF INTEGRATIVE PLANT BIOLOGY
Volume 56, Issue 10, Pages 962-970Publisher
WILEY
DOI: 10.1111/jipb.12200
Keywords
Effector-triggered immunity; microRNA; pathogen-associated molecular pattern-triggered immunity; small interfering RNA
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Funding
- National Basic Research Program of China (973 Program) [2012CB910503]
- Gordon and Betty Moore Foundation [GBMF 2550.02]
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The interaction between plants and pathogens represents a dynamic competition between a robust immune system and efficient infectious strategies. Plant innate immunity is composed of complex and highly regulated molecular networks, which can be triggered by the perception of either conserved or race-specific pathogenic molecular signatures. Small RNAs are emerging as versatile regulators of plant development, growth and response to biotic and abiotic stresses. They act in different tiers of plant immunity, including the pathogen-associated molecular pattern-triggered and the effector-triggered immunity. On the other hand, pathogens have evolved effector molecules to suppress or hijack the host small RNA pathways. This leads to an arms race between plants and pathogens at the level of small RNA-mediated defense. Here, we review recent advances in small RNA-mediated defense responses and discuss the challenging questions in this area.
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