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中国农学通报

中国农学通报 ›› 2009, Vol. 25 ›› Issue (10): 47-52.

所属专题： 生物技术； 农业工程； 油料作物

• 生物技术科学 • 上一篇    下一篇

油料作物种子维生素E基因工程研究进展

范兴福,宋淑敏,田保明,李旭娇,师恭耀,裴振强,王伯楠,高树广   

  • 收稿日期:2009-02-04 修回日期:2009-02-15 出版日期:2009-05-20 发布日期:2009-05-20

Progress in Genetic Engineering Improving Vitamin E Contents in Oilseeds

FAN Xing-Fu , Song Shu-Min , Tian Bao-Ming , LI Xu-jiao , SHI Gong-yao , PEI Zhen-qiang , WANG Bo-nan , GAO Shu-guang   

  • Received:2009-02-04 Revised:2009-02-15 Online:2009-05-20 Published:2009-05-20

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摘要： 摘要 维生素E具有重要的营养价值，是人类和动物维持生殖系统等正常代谢所必需的微量营养素，故称“生育酚”。维生素E具有很强的抗氧化能力，以及营养保健功能。食用植物油是维生素E主要来源，维生素E作为有效的天然抗氧化剂，能保护不饱和脂质免受超氧阴离子等自由基氧化，从而抑制油脂的自动氧化和酸败，延长食用植物油的货架期。通过对维生素E代谢研究的不断深入，人类已经基本了解植物体合成的基本途径。同时也使得利用基因工程改造维生素E成为可能。维生素E基因工程主要有两个策略，一是提高维生素E总量，二是提高其中活性最高α-生育酚所占比重。围绕这两个策略采取了不同解决途径。

关键词: 玉米, 玉米, 健壮素, 产量, 株高, 正红311

Abstract: Vitamin E, the indispensable nutritive value of which has been revealed, was originally discovered as an essential element for reproduction. Vitamin E has great ability of antioxidation and health protection. Edible plant oil is particularly rich in vitamin E. As an effective oxidant, vitamin E plays an important role in protecting oil from being oxidated by free radicals and from rancidity, which could enormously prolong its shelf life. The past large number of researches on vitamin E metabolism have revealed all the steps in vitamin E biosynthesis, making it possible to regulate vitamin E content through genetic engineering. To date, researches to improve vitamin content in oilseed crops have been mainly focused on the tow following strategies, enhancing the total volume of vitamin E and increasing the percentage of α-tocopherol, the form of vitamin E displaying the greatest efficacy.