| 吴美婷1，杨晓玉1，2，罗淋淋1，莫蓓莘1，刘 琳1.植物microRNA 响应非生物胁迫研究进展[J].广东农业科学,2018,45(3):69-80 |
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植物microRNA 响应非生物胁迫研究进展 |
| Recent advances in plant micrornas responses to abiotic stresses |
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| DOI：10.16768/j.issn.1004-874X.2018.03.012 |
| 中文关键词: 植物 miRNA 基因调控 非生物胁迫 |
| 英文关键词: plants miRNA gene regulation abiotic stresses |
| 基金项目:国家自然科学基金（31600982）；广东省创新团队项目（2014ZT05S078）；中国博士后科学基金
（2017M612741）；深圳大学科研基金（2016095） |
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| 中文摘要: |
| 非生物胁迫是影响植物生长和产量的主要因素之一，而microRNA（ miRNA）在植物的非生物
胁迫应答中具有重要的调控作用。miRNA 可与靶基因mRNA 互补配对结合，通过切割靶基因mRNA 或抑
制其翻译的方式，在转录后水平上实现对靶基因表达的调控，进而对植物的生长发育、形态建成以及逆境
响应等多个方面产生重要影响。综述了植物miRNA 的合成、降解及作用机制的研究进展，并对植物miRNA
参与的干旱胁迫、盐胁迫、高温与低温胁迫、养分胁迫和金属离子胁迫等非生物胁迫的应答机制进行了详
细阐述，并就当前植物miRNA 研究中存在诸如miRNA 代谢的亚细胞定位不明、功能研究手段单一以及逆
境胁迫响应机制研究不深入等问题指出了未来该领域研究的发展趋势。 |
| 英文摘要: |
| Abiotic stress is one of the primary factors that affect plant growth and yield. Recently microRNAs
（miRNAs） have been found to play an essential role in regulating plant abiotic stress responses. miRNAs can
base-pair with mRNAs of target genes and regulate their expression post-transcriptionally by cleavage or translation
inhibition. Therefore，miRNAs play a critical role in plant growth and development，morphogenesis，stress
responses and many other physiological processes in plants. In this review，we summarized the recent advances in
the biosynthesis，degradation and action modes of plant miRNAs. Particularly we introduced plant miRNA-mediated
response mechanisms to abiotic stresses responses including drought stress，salt stress，high and low temperature
stress，nutrient supply stress，metal ion stress and so on in detail. Finally we proposed the perspectives for plant
miRNA study based on the still existing problems in current plant miRNA research such as the ambiguousity of
subcellular localization of plant miRNA metabolism，the lacking of efficient research tools for plant miRNA functions
and unclarity of miRNA-mediated response mechanisms to environmental stresses. |
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