Molecular Mechanisms Determining the Differential Accumulation of Carotenoids in Plant Species and Varieties

IF 6 2区 生物学 Q1 PLANT SCIENCES Critical Reviews in Plant Sciences Pub Date : 2020-03-03 DOI:10.1080/07352689.2020.1768350
Yuting Luan, Xiumin Fu, Pengjun Lu, D. Grierson, Changjie Xu
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引用次数: 22

Abstract

Abstract Carotenoids are one of the most abundant natural pigments on earth. They accumulate in plastids and play many important roles in biological processes in plants. The structure and quantity of carotenoids vary extensively in different plant species and varieties and over the past three decades the molecular mechanisms underlying these differences have been elucidated. Multiple mechanisms have been discovered, including evolution of novel carotenogenic enzymes and novel catalytic functions, alteration in carotenogenic enzyme activity caused by gene body sequence mutations, changes in gene expression resulting from promoter mutations, difference in expression of noncarotenogenic genes involved in regulation of carotenoid sequestration, plastid sink capacity or transcriptional and epigenetic regulation, as well as effects of related metabolic events. These mechanisms are summarized here, with the aim of providing guidance for future studies on this topic and for genetic manipulation of carotenoid accumulation in plants.
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植物种类和品种类胡萝卜素积累差异的分子机制
摘要类胡萝卜素是地球上最丰富的天然色素之一。它们在质体中积累,在植物的生物过程中发挥着许多重要作用。类胡萝卜素的结构和数量在不同的植物物种和品种中有很大的差异,在过去的三十年里,这些差异的分子机制已经被阐明。已经发现了多种机制,包括新的胡萝卜素原酶和新的催化功能的进化,由基因体序列突变引起的胡萝卜素酶活性的改变,由启动子突变引起的基因表达的变化,参与调节类胡萝卜素固存的非胡萝卜素原基因表达的差异,质体库容量或转录和表观遗传调控,以及相关代谢事件的影响。本文对这些机制进行了总结,旨在为未来这一主题的研究和植物中类胡萝卜素积累的遗传操作提供指导。
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来源期刊
CiteScore
12.90
自引率
1.40%
发文量
15
审稿时长
>12 weeks
期刊介绍: Critical Reviews in Plant Sciences focuses on presenting in-depth and up-to-date reviews of timely and/or cutting-edge subjects in the broad discipline of plant science, ranging from molecular biology/biochemistry through the areas of cell biology, plant pathology and physiology, genetics, classical botany, and ecology, to practical agricultural applications. Articles in the journal provide an up-to-date literature base for researchers and students, pointing the way towards future research needs. The journal is also a significant source of credible, objective information to aid decision makers at all levels.
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