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非编码RNA参与了多种重要的生命进程,是当今研究的热点领域。在植物中,非编码RNA除了参与维持基因组的稳定,还在生长、发育、逆境胁迫反应等过程中发挥重要作用。RNA干扰(RNA interference,RNAi)是指由RNA触发的相应基因的表达抑制,是非编码RNA调控基因表达的一种重要的作用方式,自发现以来已逐渐发展为遗传分析、疾病治疗以及植物保护等方面的有效的新技术。文章重点介绍了微RNA(micro RNA,mi RNA)在植物抗虫防御中的生物学功能,si RNA对植物防御记忆的影响以及RNAi对植物防御信号途径的调节作用,同时阐述了RNAi在提高农作物抗虫性上的应用并展望了未来植物非编码RNA的研究方向。
Non-coding RNA involved in a variety of important life processes, is a hot area of research. In plants, non-coding RNA in addition to maintaining the stability of the genome, but also in the growth, development, stress response to stress plays an important role in the process. RNA interference (RNAi) refers to the inhibition of the expression of the corresponding gene triggered by RNA. It is an important mode of action of non-coding RNA regulating gene expression. Since it was discovered, RNAi has gradually developed into genetic analysis, disease treatment and plant protection Effective new technologies. In this review, the biological functions of micro RNA (miRNA) in plant defense and defense, the effect of si RNA on plant defense and memory, and the regulation of RNAi on plant defense signal pathways are also introduced. At the same time, The application of insect resistance and future research direction of plant non-coding RNA.