Laminarin, a Major Polysaccharide in Stramenopiles.

Laminarin, a Major Polysaccharide in Stramenopiles.
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海带多糖,原生藻菌中的主要多糖

DOI:
10.3390/md19100576
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发表时间:
2021-10-15
期刊:
影响因子:
5.4
通讯作者:
Liu X
Liu X
中科院分区:
医学2区
文献类型:
--
作者:
Chen J;Yang J;Du H;Aslam M;Wang W;Chen W;Li T;Liu Z;Liu X

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在初级和次级内共生过程中,不同的微藻进化合成不同的贮藏多糖。在海带中,主要的贮藏多糖是液泡中的β-1,3-葡聚糖或海带多糖。目前,海带多糖由于其在食品、化妆品和制药工业中的应用以及其在全球生物地球化学循环(特别是在海洋碳循环中)中的重要性而获得相当大的关注。本文综述了海带多糖的结构、组成、含量及其在不同藻类中的生物活性。结果表明,海带多糖的一般特征是种属依赖性。此外,还首次对海带多糖的生物合成途径、催化途径、关键基因的功能以及海带多糖的昼夜调控进行了全面的阐述和讨论。然而,海带多糖的完整通路、基因功能和昼夜调控机制还需要更多的生物分子研究。本文综述了海带多糖的研究进展,并指出了存在的问题。
During the processes of primary and secondary endosymbiosis, different microalgae evolved to synthesis different storage polysaccharides. In stramenopiles, the main storage polysaccharides are β-1,3-glucan, or laminarin, in vacuoles. Currently, laminarin is gaining considerable attention due to its application in the food, cosmetic and pharmaceuticals industries, and also its importance in global biogeochemical cycles (especially in the ocean carbon cycle). In this review, the structures, composition, contents, and bioactivity of laminarin were summarized in different algae. It was shown that the general features of laminarin are species-dependence. Furthermore, the proposed biosynthesis and catabolism pathways of laminarin, functions of key genes, and diel regulation of laminarin were also depicted and comprehensively discussed for the first time. However, the complete pathways, functions of genes, and diel regulatory mechanisms of laminarin require more biomolecular studies. This review provides more useful information and identifies the knowledge gap regarding the future studies of laminarin and its applications.
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