摘要
低温是影响植物生长发育的最常见的环境胁迫之一,对植物生长、繁殖和产量均有不利影响。了解植物低温应答的分子机理对作物耐低温性状的遗传改良具有重要的意义。microRNAs (miRNAs)是一类小的内源性非编码RNA,可以通过降解靶基因或抑制其翻译而在转录后水平负调控靶基因的表达,从而调控植物的生命进程。本文系统总结了响应低温胁迫的miRNAs及其作用的靶基因,以及miRNAs介导的低温胁迫抗性反应机制的最新研究进展,以期拓宽对植物耐受低温胁迫的分子机制的理解,为通过遗传操作提高作物抵御低温胁迫的能力提供参考。
Low temperature, one of the most common environmental stresses for plant causes negative effects on the growth, reproduction, and yield of the plant. Understanding the molecular mechanism of plant response to low temperature will be of great significance for genetic improvement of low-temperature tolerance of crops.MicroRNAs(miRNAs) are small, endogenous non-coding RNAs that can negatively regulate the expression of target genes at the post-transcriptional level by cleaving their target genes or inhibiting their translation, thereby regulating the life course of plant. In this review, we systematically summarized the recent research progress on the miRNAs and their target genes which response to low temperature stress, as well as the mechanisms of miRNA-mediated resistance to low temperature stress in plants. This review would broaden the understanding of the molecular mechanism of plant resistance to low temperature stress, and provide references for improving the ability of crops resistance to low temperature stress by genetic manipulations.
作者
张达巍
王遂
高源
陈肃
杨传平
ZHANG Da-Wei;WANG Sui;GAO Yuan;CHEN Su;YANG Chuan-Ping(State Key Laboratory of Tree Genetics and Breeding,Northeast Forestry University,Harbin 150040,China)
出处
《植物生理学报》
CAS
CSCD
北大核心
2019年第2期117-124,共8页
Plant Physiology Journal
基金
国家自然科学基金(31700579)~~
