摘要
植物micro RNAs（mi RNAs）是在植物体内产生的长度为21~24 nt的一类非编码单链RNA分子,在植物生命的各个过程中均起着重要的调控作用。环境胁迫是影响植物正常生长的重要因素,不同的胁迫可以使植物相应的mi RNAs表达量发生变化,mi RNAs可通过调控其靶基因的表达量,使植物在形态及生理上产生对逆境的适应性。本文阐述了植物mi RNAs的合成过程与作用机理,及其在响应盐、干旱、温度、营养、UV-B、机械损伤等非生物胁迫和病原菌侵染等生物胁迫方面的研究概况与进展,并概述了mi RNAs研究中的问题及应用前景。
Plant microRNAs（miRNAs）, about 21–24 nucleotides length, are a group of endogenous, noncoding, single-stranded RNAs which play an important regulatory role in plant growth and development. Environmental stresses seriously affect plant growth, and the expression of miRNAs may change under different stresses. Some miRNAs respond to several environmental stresses which can improve the resistance of plants by regulating target genes expression. This paper summarized the research development of plant miRNAs in recent years including biosynthesis, action mechanisms and the respond to stresses such as salinity, drought, temperature, nutrients, mechanical wounding, UV-B and pathogenic bacteria, and the problems and prospect in the study were also elaborated.
出处
《植物生理学报》
CAS
CSCD
北大核心
2015年第10期1549-1556,共8页
Plant Physiology Journal
基金
辽宁省高等学校优秀人才支持计划(LR2014019)
辽宁省百千万人才工程资助项目(2014921040)
