通过过量表达来自拟南芥的VTE1以增加生育酚产量，转基因烟草植株对干旱胁迫的耐受性增强。
Enhanced tolerance to drought stress in transgenic tobacco plants overexpressing VTE1 for increased tocopherol production from Arabidopsis thaliana.
作者信息
Liu Xiaoli, Hua Xuejun, Guo Juan, Qi Dongmei, Wang Lijuan, Liu Zhipeng, Jin Zhiping, Chen Shuangyan, Liu Gongshe
机构信息
Key Laboratory of Photosynthesis and Environmental Molecular Physiology, Institute of Botany, Chinese Academy of Sciences, Beijing, 100093, People's Republic of China.
出版信息
Biotechnol Lett. 2008 Jul;30(7):1275-80. doi: 10.1007/s10529-008-9672-y. Epub 2008 Mar 4.
Tocopherol cyclase (VTE1, encoded by VTE1 gene) catalyzes the penultimate step of tocopherol synthesis. Transgenic tobacco plants overexpressing VTE1 from Arabidopsis were exposed to drought conditions during which transgenic lines had decreased lipid peroxidation, electrolyte leakage and H(2)O(2) content, but had increased chlorophyll compared with the wild type. Thus VTE1 can be used to increase vitamin E content of plants and also to enhance tolerance to environmental stresses.
生育酚环化酶（由VTE1基因编码的VTE1）催化生育酚合成的倒数第二步。过表达来自拟南芥的VTE1的转基因烟草植株在干旱条件下，与野生型相比，转基因株系的脂质过氧化、电解质渗漏和H₂O₂含量降低，但叶绿素含量增加。因此，VTE1可用于提高植物的维生素E含量，并增强对环境胁迫的耐受性。
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