首页|木栓质的转录调控及其对环境的响应

木栓质的转录调控及其对环境的响应

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[目的]木栓质是一种聚酯型生物聚合物,特异性沉积在植物的内皮层、周皮、种皮和伤口外表皮等组织中.作为植物与环境之间的屏障,木栓质通过控制水和溶质运输保护植物免受环境胁迫和病原侵袭.文章论述了木栓质生物合成的关键酶和转录因子,探讨了环境因子对木栓质合成和沉积的影响,并展望了未来研究方向.[评论]木栓质的调控涉及多种因素,包括关键酶[如β-酮脂酰-CoA合成酶(KCS)、脂肪酰基还原酶(FAR)、细胞色素P450酶(CYP家族)等]和转录因子(如MYB、NAC、WRKY等),环境因子也通过复杂的信号转导途径调控木栓质的生物合成与沉积.[展望]未来研究应聚焦木栓质生物合成的关键调控节点,尤其是在作物中探究影响木栓质物种差异性沉积的因素,并借助多组学等方法解析其运输、组装及后转录调控机制,有望为作物高养分利用和抗逆性遗传改良提供新策略.
Transcriptional regulation of suberin and its response to the environment
[Objective]Suberin is a polyester type biopolymer that specifically deposits in tissues such as the endodermis,periderm,seed coat,and wound epidermis of plants.Acting as a barrier between the plants and their environment,suberin controls the transport of water and solutes,protecting plants from envi-ronmental stresses and pathogenic invasion.This article reviews the key enzymes and transcription factors involved in suberin biosynthesis,and discusses the impact of environmental factors on suberin synthesis and deposition.The future research direction was prospected.[Reviews]The regulation of suberin in-volves various factors,including key enzymes such as β-ketoacyl-CoA synthase(KCS),fatty acyl reduc-tase(FAR),cytochrome P450 enzymes(CYP family),and transcription factors such as MYB,NAC,WRKY.Environmental factors also regulate the biosynthesis and deposition of suberin through complex signal transduction pathways.[Prospect]Future research should focus on the key regulatory nodes of su-berin biosynthesis,particularly exploring the factors that influence species-specific deposition of suberin in crops.By leveraging multi-omics approaches to elucidate its transport,assembly,and post-transcriptional regulation mechanisms,there is potential to provide new strategies for enhancing nutrient use efficiency and stress resistance in crop genetic improvement.

suberinapoplast barriertranscription factorsenvironmental factors

周月、安永平、马蓉、王沛

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西南民族大学四川若尔盖高寒湿地生态系统国家野外科学观测研究站,草地资源学院,成都 610041

木栓质 质外体屏障 转录因子 环境因子

2024

西北植物学报
西北农林科技大学,陕西省植物学会

西北植物学报

CSTPCD北大核心
影响因子:1.031
ISSN:1000-4025
年,卷(期):2024.44(12)