| 周济龙,姚鲲鹏,杨金鹏,等.小麦NAC转录因子响应逆境胁迫的研究进展[J].广东农业科学,2025,(4-5):- |
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小麦NAC转录因子响应逆境胁迫的研究进展 |
| Advances in research on function of wheat NAC transcription factor in stress response |
| 投稿时间：2024-11-19 修订日期：2025-03-29 |
| DOI： |
| 中文关键词: 小麦 NAC转录因子 生物逆境 非生物逆境 功能鉴定 调控机制 |
| 英文关键词: wheat NAC transcription factor biotic stress abiotic stress functional identification regulation mechanism |
| 基金项目:山东省自然科学青年基金(ZR2024QC133);山东省重点研发计划(重大科技创新工程)(2021LZGC009)；国家自然科学基金(32001592)；青岛农业大学大学生创新训练项目(S202310435267)。 |
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| 摘要点击次数: 30 |
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| 中文摘要: |
| 作物抗逆性是多基因控制的复杂数量性状，各基因相互协调构成复杂的调控网络。其中，转录因子能特异性结合下游基因启动子区域的顺式作用元件进而调控其表达，在作物逆境应答中发挥重要作用。NAC（NAM，ATAF1/2和CUC2）转录因子是植物特有的、具有多种生物学功能的、最大的转录因子家族之一。本文总结国内外相关研究进展，首先简要综述了NAC转录因子的结构特征，。然后重点阐述了小麦NAC转录因子响应条锈病、白粉病、赤霉病等生物逆境和干旱、高盐等非生物逆境的功能和机制研究进展，。总体而言，研究者目前克隆并研究了较多参与小麦条锈病抗性、干旱胁迫应答的NAC转录因子家族成员基因，而参与白粉病、赤霉病等其他病害抗性和盐胁迫等其他非生物胁迫应答的家族成员基因的研究还相对较少；较多基因的功能鉴定仅通过拟南芥遗传转化得以初步验证；其参与逆境胁迫的分子调控机制研究也相对浅显。最后基于研究现状，最后展望了小麦NAC转录因子的研究方向和应用前景。本文可为更便捷高效地开展小麦抗逆性遗传改良提供参考。 |
| 英文摘要: |
| Crop resistance is a complex quantitative trait controlled by many genes, which coordinate with each other to form a complex regulatory network. Transcription factors, which regulate the expression of downstream gene by specifically binding to the cis-acting elements in the promoter region, play important roles in crop resistance responding. The NAC (NAM, ATAF1/2, and CUC2) family is one of the largest families of plant-specific transcription factors with multiple biological functions. Here, the structural characteristics of NAC transcription factor were briefly introduced firstly. Then the recent research progresses of the functions and mechanisms of NAC transcription factor in wheat were emphasized in response to biotic stresses such as stripe rust, powdery mildew and fusarium head blight, as well as abiotic stresses such as drought and high salt. Totally, relatively more NAC genes responding to stripe rust and drought were cloned and analyzed, while there were relatively less ones responding to powdery mildew, fusarium head blight as well as other diseases, and salt stress as well as other abiotic stresses. Besides, functional identification of many NAC genes was just performed through genetic transformation of Arabidopsis, and the molecular regulation mechanism participating in stress response was relatively simple. Finally, based on the present research status, the research direction and application prospect of NAC transcription factor were prospected. The present paper could provide reference for genetic improvement of wheat stress resistance more conveniently and efficiently. |
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