摘要
花青素是一种天然色素,可以作为清除自由基的重要天然抗氧化剂,其富含的多种化合物在医疗保健方面十分重要。花青素影响果蔬成熟、口感、色泽,对植物的非生物和生物胁迫产生保护作用,因此优化花青素含量被视为许多园艺作物的育种目标。本研究阐述了乙烯响应因子(ERFs)作为乙烯信号传递的次级转录因子响应植物激素信号并能产生反馈调节,以多种方式介导了乙烯调控植物花青素生物合成的过程。在作用方式上,ERFs主要通过与转录因子互作、激活转录因子、与MBW形成调控复合物或直接激活结构基因启动子的方式调控植物花青素的生物合成。本研究旨在为后续深入阐明ERF调控不同物种花青素生物合成的机制、探究果蔬成熟后期花青素快速积累与乙烯释放量增加之间存在的联系提供理论依据。
Anthocyanins,which are natural pigments and serve as important natural antioxidants scavenging free radicals,are rich in a variety of compounds that are important in health care.Anthocyanins affect the ripening,taste and color of fruits and vegetables,and prevent plants from abiotic and biotic stresses.Therefore,optimizing anthocyanin content is regarded as the breeding goal in many horticultural crops.As the secondary ethylene signaling transcription factors,ethylene response factors(ERFs)respond to plant hormone signaling and can result in feedback regulation,and these genes are known to modulate the process of ethylene regulating anthocyanin biosynthesis via various mechanisms.In terms of the molecular mode,ERFs in regulation of anthocyanin biosynthesis rely on the physical interaction with transcription factors,activating transcription factors,forming regulatory complexes with MBW or directly activating structural gene promoters.This study aims to provide a theoretical basis for further elucidating the mechanism of ERF regulating anthocyanin biosynthesis,and to explore the relationship between the rapid accumulation of anthocyanins and the increase of ethylene release in fruits and vegetables at the late ripening stage.
作者
刘菊
张会灵
张中华
赵亚男
张菊平
LIU Ju;ZHANG Hui-ling;ZHANG Zhong-hua;ZHAO Ya-nan;ZHANG Ju-ping(College of Horticulture and Plant Protection,Henan University of Science and Technology,Luoyang 471000)
出处
《植物遗传资源学报》
CAS
CSCD
北大核心
2023年第3期615-623,共9页
Journal of Plant Genetic Resources
基金
河南省高等学校青年骨干教师培养计划(2021GGJS049)
河南省科技攻关项目(232102110195)
河南省高等学校重点科研项目计划(20A210009)。
关键词
ERF
乙烯
花青素
转录因子
ERF
ethylene
anthocyanins
transcription factors
