博文

Molecular Plant：植物质体在类胡萝卜素代谢中的作用（综述）

已有 5863 次阅读 2017-9-27 08:28 |个人分类:每日摘要|系统分类:论文交流

Carotenoid Metabolism in Plants: The Role of Plastids

First author:Tianhu Sun; Affiliations: Cornell University (康奈尔大学): New York, USA

Corresponding author: Li Li

Carotenoids (类葫萝卜素) are indispensable (不可缺少的) to plants and critical in human diets (日常饮食). Plastids are the organelles for carotenoid biosynthesis and storage in plant cells, and exist in various types, which include proplastids (前质体), etioplasts (黄化质体), chloroplasts, amyloplasts (淀粉体), and chromoplasts (色质体). These plastids have dramatic differences in their capacity to synthesize and sequester (隔离; 扣押) carotenoids. Clearly, plastids play a central role in governing carotenogenic activity, carotenoid stability, and pigment (色素) diversity. Understanding of carotenoid metabolism and accumulation in various plastids expands our view on the multifaceted (多方面的) regulation of carotenogenesis and facilitates our efforts toward developing nutrient enriched food crops. In this review, we provide a comprehensive overview of the impact of various types of plastids on carotenoid biosynthesis and accumulation, and discuss recent advances in our understanding of the regulatory control of carotenogenesis and metabolic engineering of carotenoids in light of (根据) plastid types in plants.

类胡萝卜素是植物必不可少的物质，同时也是人类日常餐饮中非常重要的组成。质体是植物细胞中类胡萝卜素生物合成和存储的细胞器，其种类多样，有前质体、黄化质体、叶绿体、淀粉体以及色质体。这些质体在合成及存储类胡萝卜素的能力上具有很大的差异。很明显，质体在类胡萝卜素活性、稳定性以及色素多样性中扮演着重要的作用。理解类胡萝卜素在不同质体中的代谢与积累有利于多方面调控类胡萝卜素的生物合成，辅助开发富含营养的使用作物。在本综述中，作者综合回顾了不同质体种类对于类胡萝卜素生物合成及积累的影响，同时也按照植物中的质体种类详细讨论了近年来关于调控类胡萝卜素生物合成与代谢工程方面所取得的成就。

通讯：Li Li (https://plbrgen.cals.cornell.edu/people/li-li)