College of Horticulture, Fujian Agriculture and Forestry University, Fuzhou 350002, China.
Guangdong Technology Research Center for Marine Algal Bioengineering, Guangdong Key Laboratory of Plant Epigenetics, College of Life Sciences and Oceanography, Shenzhen University, Shenzhen 518060, China.
Biomolecules. 2021 Jan 29;11(2):184. doi: 10.3390/biom11020184.
Plants, due to their sessile nature, have an innate immune system that helps them to defend against different pathogen infections. The defense response of plants is composed of a highly regulated and complex molecular network, involving the extensive reprogramming of gene expression during the presence of pathogenic molecular signatures. Plants attain proper defense against pathogens through the transcriptional regulation of genes encoding defense regulatory proteins and hormone signaling pathways. Small RNAs are emerging as versatile regulators of plant development and act in different tiers of plant immunity, including pathogen-triggered immunity (PTI) and effector-triggered immunity (ETI). The versatile regulatory functions of small RNAs in plant growth and development and response to biotic and abiotic stresses have been widely studied in recent years. However, available information regarding the contribution of small RNAs in plant immunity against pathogens is more limited. This review article will focus on the role of small RNAs in innate immunity in plants.
植物由于其固着的特性，拥有一种先天免疫系统，帮助它们抵御不同的病原体感染。植物的防御反应由一个高度调控和复杂的分子网络组成，涉及到在存在致病分子特征时基因表达的广泛重编程。植物通过对编码防御调节蛋白和激素信号通路的基因的转录调控来获得对病原体的适当防御。小 RNA 作为植物发育的多功能调节剂而出现，并在植物免疫的不同层次起作用，包括病原体触发的免疫（PTI）和效应物触发的免疫（ETI）。近年来，小 RNA 在植物生长发育和对生物及非生物胁迫的反应中的多功能调节功能得到了广泛研究。然而，关于小 RNA 在植物对病原体免疫中的贡献的可用信息更为有限。这篇综述文章将重点介绍小 RNA 在植物先天免疫中的作用。
