生物技术通报 ›› 2025, Vol. 41 ›› Issue (7): 69-80.doi: 10.13560/j.cnki.biotech.bull.1985.2025-0061

• 综述与专论 • 上一篇    下一篇

水稻miRNAs响应生物胁迫研究进展

侯鹰翔1(), 费思恬1, 黎妮2,3, 李兰4, 宋松泉1, 王伟平2,3(), 张超1()   

  1. 1.湘南学院南岭现代种业研究院,郴州 423000
    2.三亚市国家耐盐碱水稻技术创新中心,三亚 572000
    3.杂交水稻全国重点实验室,长沙 410125
    4.湘南学院药学院,郴州 423000
  • 收稿日期:2025-01-14 出版日期:2025-07-26 发布日期:2025-07-22
  • 通讯作者: 张超,男,博士,讲师,研究方向 :水稻分子生物学;E-mail: ricezhangchao@xnu.edu.cn
    王伟平,男,博士,研究员,研究方向 :水稻遗传育种;E-mail: wangweiping@hhrrc.ac.cn
  • 作者简介:侯鹰翔,男,硕士,农艺师,研究方向 :水稻遗传育种;E-mail: 450501341@qq.com
  • 基金资助:
    ?:?海南省自然科学基金面上项目(324MS135);湖南省教育厅优秀青年项目(24B0773);湖南省教育厅优秀青年项目(24B0766);杂交水稻全国重点实验室定向支持项目(kq2404010)

Research Progress in Response of Rice miRNAs to Biotic Stress

HOU Ying-xiang1(), FEI Si-tian1, LI Ni2,3, LI Lan4, SONG Song-quan1, WANG Wei-ping2,3(), ZHANG Chao1()   

  1. 1.Nanling Research Institute for Modern Seed industry, Xiangnan University, Chenzhou 423000
    2.National Technology Innovation Center for Salt-Tolerant Rice at Sanya, Sanya 572000
    3.State Key Laboratory of Hybrid Rice, Changsha 410125
    4.School of Pharmacy, Xiangnan University, Chenzhou 423000
  • Received:2025-01-14 Published:2025-07-26 Online:2025-07-22

摘要:

水稻生产过程中常常面临着各种真菌、细菌、病毒以及害虫等生物胁迫,严重威胁水稻生长与产量,提高水稻自身抗性是防控病虫危害最经济有效的方式。miRNAs是一类长约20-24个核苷酸的内源性非编码小RNA,通过降解靶mRNAs或抑制mRNAs翻译来负调控基因的表达。近些年,水稻miRNAs在响应生物胁迫的功能研究中取得了诸多进展,水稻miRNAs通过调控多种转录因子、转运蛋白、内源信号分子、信号受体、氧化酶、水解酶以及激酶等参与模式触发免疫(PTI)和效应子触发免疫(ETI)信号途径,直接或间接调控水稻对生物胁迫的耐受性。部分miRNAs在兼顾水稻产量和抗性上发挥了关键作用,如miR156、miR168、miR396、miR162a、miR1873、miR1871以及miR1432等,为培育高产抗病水稻品种提供了重要思路。然而,水稻miRNAs响应生物胁迫的研究大多数集中在下游靶基因的鉴定和表征,应加大对上游调控元件的研究,同时全面地剖析miRNAs介导的生物胁迫信号的传递并细化各组件的功能及它们之间的互动关系,从而为提高操纵miRNA表达的效率以改良水稻品种奠定基础。本文综述水稻miRNAs响应稻瘟病、白叶枯病、条纹叶枯病、病毒病以及褐飞虱等生物胁迫的功能与机制,并提出未来需要关注和进一步研究的科学问题,以期为水稻分子育种提供策略。

关键词: 水稻, miRNAs, 生物胁迫, 靶基因, 作用机制

Abstract:

During the rice production process, rice (Oryza sativa) often faces various biotic stresses such as fungi, bacteria, viruses, and pests, which seriously threaten rice growth and yield. Improving the inherent resistance of rice is the most economical and effective way to resist pests and pathogens. MiRNAs are a class of endogenous non-coding small RNAs approximately 20-24 nucleotides in length,which negatively regulate gene expression by degrading target mRNAs or inhibiting translation. In recent years, significant progress has been achieved in the functional research of rice miRNAs in response to biotic stresses. Rice miRNAs participate in the pattern-triggered immunity (PTI) and effector-triggered immunity (ETI) signaling pathways through a variety of transcription factors, transporters, endogenous signaling molecules, signal receptors, oxidases, hydrolases, and kinases, etc., directly or indirectly regulating the tolerance of rice to biotic stresses. Several miRNAs, such as miR156, miR168, miR396, miR162a, miR1873, miR1871, and miR1432, play critical roles in balancing rice yield and resistance, offering important insights for breeding high-yielding and disease-resistant varieties. However, most current studies on rice miRNAs in responses to biotic stress focus on identifying and characterizing downstream target genes. Future efforts should intensify research on upstream regulatory elements and comprehensively dissect the signal transduction pathways mediated by miRNAs, specifically clarifying the functions of individual components and their interactive networks. This will lay a foundation for improving the efficiency of miRNA expression manipulation in rice varietal improvement. This paper mainly reviews the functions of rice miRNAs in response to biotic stresses such as rice blast, bacterial blight, stripe disease, viral diseases, and brown planthoppers. It also proposes scientific questions that need attention and further research in the future, aiming to provide strategies for rice molecular breeding.

Key words: rice, miRNAs, biotic stress, target genes, action mechanism