| 穆好鑫,方萍萍,郭勤卫,杨立飞.木质素合成在非生物胁迫中的响应及其转录调控机制[J].干旱地区农业研究,2025,(4):295~304 |
| 木质素合成在非生物胁迫中的响应及其转录调控机制 |
| Response of lignin synthesis in abiotic stress and its transcriptional regulation mechanism |
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| DOI：10.7606/j.issn.1000-7601.2025.04.30 |
| 中文关键词: 木质素 生物合成 非生物胁迫 转录调控机制 环境适应性 |
| 英文关键词:lignin biosynthesis abiotic stress transcriptional regulation mechanism environmental adaptability |
| 基金项目:国家自然科学基金青年项目(32202521)；衢州市科技计划项目(2024K063) |
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| 中文摘要: |
| 木质素为自然界中含量第二丰富的复杂酚类化合物，是植物细胞壁的主要组成部分，其生物合成涉及多种关键功能酶，并受到转录因子的调控。深入了解木质素在各种非生物胁迫下的响应机制，理解植物应对逆境的调控策略，对探讨植物生长和环境适应性、促进作物遗传改良和种质创新具有重要意义。本文首先概述了木质素的生物合成途径及调控其合成的转录因子；其次介绍了木质素合成在干旱、盐胁迫、温度胁迫及重金属胁迫等非生物胁迫下的响应及其功能，总结了非生物胁迫下木质素合成的转录调控机制；最后展望木质素的未来研究方向，强调了通过基因工程手段调控木质素合成以提高植物抗逆性的重要性，旨在深化对木质素生物合成和胁迫响应机理的认知，以期为植物遗传改良和种质创新提供参考。 |
| 英文摘要: |
| Lignin is the second most abundant complex phenolic compound in nature and the main constituent of plant cell walls. The biosynthesis of lignin involves a variety of key functional enzymes and is regulated by transcription factors. Understanding the response mechanisms of lignin to various abiotic stresses and the regulatory strategies of plants to cope with stresses, is of great significance for exploring plant growth and environmental adaptability, which will promote crop genetic improvement and germplasm innovation. In this paper, the biosynthetic pathway of lignin and the transcription factors regulating its synthesis were reviewed. The response and function of lignin synthesis under abiotic stress (drought, saline, temperature, and heavy metal stress, etc.) was introduced, the transcriptional regulation mechanism of lignin synthesis under abiotic stress was summarized. This review outlined the future research directions of lignin, emphasized the importance of regulating lignin synthesis through genetic engineering means to enhance the stress resistance of plants. The aim was to deepen the understanding of lignin biosynthesis and stress response mechanism, so as to provide reference for plant genetic improvement and germplasm innovation. |
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