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在环境胁迫下,植物体内活性氧(ROS)的大量积累会对其本身产生毒害作用。SOD酶在清除这些活性氧化酶机制中发挥关键作用。大量研究表明,MnSOD可有效增强转基因植物抵抗氧化胁迫的能力。我们从抗逆性较强的木本植物紫杆柽柳中克隆到一个新的MnSOD基因,并将该全长基因在GenBank上注册,其登录号分别为AY573576(基因序列)和AAS77885(氨基酸序列)。这将为研究木本植物的抗逆机理和该酶在抗逆基因工程中的应用奠定基础。
Under environmental stress, the accumulation of reactive oxygen species (ROS) in plants will have a toxic effect on them. SOD enzymes play a key role in clearing these mechanisms of active oxidase. Numerous studies have shown that MnSOD can effectively enhance the ability of transgenic plants to resist oxidative stress. We cloned a new MnSOD gene from the stress-resistant woody plant Tamarix ramosissima and registered the full-length gene in GenBank with the accession numbers AY573576 (gene sequence) and AAS77885 (amino acid sequence) . This will lay the foundation for studying the stress resistance mechanism of woody plants and the application of this enzyme in the anti-stress gene engineering.