首页 > 分享 > 植物叶色形成调控机制研究进展

植物叶色形成调控机制研究进展

花匠小妙招
2024-11-20 07:17

植物叶色形成调控机制研究进展

作者单位:

林木遗传育种国家重点实验室/国家林业和草原局林木培育重点实验室/中国林业科学研究院林业研究所

基金项目:

中央级公益性科研院所基本科研业务费专项资金(CAFYBB2017ZY008)、国家自然科学基金面上项目(31570669)；转基因生物新品种培育重大专项课题(2018ZX08020002)

Advance of the Regulation Mechanism of Leaf Color Formation in Plants

Author:

ZHANG lei

State Key Laboratory of Tree Genetics and Breeding/Key Laboratory of Tree Breeding and Cultivation of National Forestry and Grassland Administration/Research Institute of Forestry, Chinese Academy of Forestry
在期刊界中查找
在百度中查找
在本站中查找

CAO De-mei

HU Jian-jun

Affiliation:

Fund Project:

National Non-profit Institute Research Grant of CAF(CAFYBB2017ZY008), National Natural Science Foundation (31570669), NationalKeyProgramonTransgenicResearch (2018ZX08020002)

摘要 | | 访问统计 | 参考文献 [152] | | || 文章评论

摘要:

彩叶植物具有色彩鲜艳、观赏期长等特点，有助于提高城市绿化的观赏性。叶绿素、类胡萝卜素和花青素等天然色素的含量变化使叶片产生绿色、黄色、白色和紫红色等颜色，三种色素在光反应、响应生物和非生物胁迫中发挥重要作用。本文对影响叶绿素、类胡萝卜素和花青素生物合成途径遗传调控和外部环境因子综述，为解释叶片呈色机制提供理论基础。现有研究表明，光(光周期、光照强度及光质)、温度、干旱和盐等环境因子及激素变化均会刺激 HY5、 PIFs、 DELLA 等转录因子和结构基因转录，同时甲基化、乙酰化等染色质修饰和 miRNAs、 lncRNAs 等转录后表观遗传修饰也会直接或间接调控三种色素生物合成途径基因的表达。虽然目前三种色素生物合成途径已较清晰，但有关彩叶林木三种色素代谢与环境信号、体内激素的具体调控模式仍有待进一步研究。未来可构建彩叶植物杂交群体和种质资源库，并利用基因组、转录组、蛋白组、代谢组和表型组等多组学技术为创制彩叶新种质提供可能。

Abstract:

Plants with colored foliage provide bright colors and have long viewing periods, which is helpful to improve the ornamental value of urban landscaping. Natural pigments (chlorophyll, carotenoid and anthocyanin) are involved in light-dependent reactions and in response to biotic and abiotic stress, and the changes of their contents and proportions make the leaves show green, yellow, white and purplish-red colors. In this paper, the genetic regulation and external environment factors affecting the biosynthetic pathways of chlorophyll, carotenoids and anthocyanins are reviewed to provide a theoretical basis for explaining the color mechanism of forest tree leaves. The existing studies have shown that environmental factors such as light (photoperiod, light intensity and quality), temperature, drought and salt, and hormone variation stimulate the transcription of transcription factors and the structural genes such as HY5, PIFs and DELLA. Meanwhile, methylated and acetylated chromatin and epigenetic modification after transcription of miRNAs and lncRNAs directly or indirectly regulate the expression of biosynthesis pathway genes of the three pigments. Although the biosynthesis pathways of the three pigments are relatively clear at present, the specific regulatory patterns of the metabolism of the three pigments in colored-leaved forest trees and the environmental signals and hormones still need to be further clarified. In the future, we can construct hybrid populations and Germplasm Resource Bank of colored-leaved plants and make use of genomic, transcriptomic, proteomic, metabonomic, phenomic technologies to create new germplasm of colored leaves.

引用本文

张磊,曹德美,胡建军.植物叶色形成调控机制研究进展[J].植物遗传资源学报,2021,22(2):293-303.

复制

分享文章指标点击次数:2362 下载次数: 3457 HTML阅读次数: 0 历史收稿日期:2020-08-05 最后修改日期:2020-09-16 录用日期:2020-10-09 在线发布日期: 2021-03-09 文章二维码