植物维生素E基因工程研究进展 |
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作者姓名: | 张亮 张兰 王磊 |
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作者单位: | 中国农业科学院生物技术研究所, 北京 100081 |
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基金项目: | 转基因生物新品种培育科技重大专项(2011ZX08003-002)资助。 |
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摘 要: | 维生素E(vitamin E)是一种脂溶性维生素,是生物体内最主要的抗氧化剂之一。本文综述了植物维生素E的合成途径及所涉及的相关基因,针对提高植物中维生素E含量的基因工程改造,提出三条途径,即提高代谢底物水平、提高植物生育酚总量和提高α 生育酚比例,分析了维生素E基因工程改造过程中需要考虑的因素,最后展望了未来作物维生素E的品质改良的研究方向。
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关 键 词: | 植物 维生素E 生育酚 基因工程 |
收稿时间: | 2012-06-18 |
The Advance of Vitamin E Genetic Engineering in Plants |
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Authors: | ZHANG Liang ZHANG Lan WANG Lei |
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Institution: | Biotechnology Research Institute, Chinese Academy of Agricultural Sciences, Beijing 100081 |
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Abstract: | Vitamin E, a lipid-soluble vitamin, is one of the most important antioxidants in organisms. In this review, we summarize the latest research progress of vitamin E biosynthesis pathway and related genes function, and propose three ways to improve the vitamin E content in the plants by genetic engineering, e.g. to improve the level of metabolic substrates, to increase total tocopherol contents and to raised the α-tocopherol phenol proportion. Furthermore, we analyze the factors to be considered in the process of vitamin E genetic engineering. Finally, the future research directions of vitamin E quality improvement in crops are prospected. |
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Keywords: | plant vitamin E tocopherols genetic engineering |
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