Changes in Physiological Indexes of SPDS Transgenic Potato Plants under Low Temperature Stress  

低温胁迫下转SPDS基因马铃薯植株生理指标的变化（英文）

作　　者：杨金辉[1] 贺利雄[2] 蒋万[1] 宋勇[1,3] 

机构地区：[1]湖南农业大学园艺园林学院,湖南长沙410128 [2]湖南农业大学生物科学技术学院,湖南长沙410128 [3]湖南省马铃薯工程技术研究中心,湖南长沙410128

出　　处：《Agricultural Science & Technology》2015年第9期1857-1859,共3页农业科学与技术（英文版）

基　　金：Supported by National Natural Science Foundation of China(NSFC)-Xinjiang Joint Fund(U12031039)~~

摘　　要：Using potato plants overexpressing spermidine synthase（SPDS） gene as experimental materials, changes in chlorophyll content, malondialdehyde（MDA） content and superoxide dismutase（SOD） activity of potato leaves under low temperature stress were determined. According to the results, chlorophyll content of experimental plants showed a decreasing trend; MDA content of 01-47 was significantly higher than that of Atlantic; MDA content of 01-6 and 01-49 was significantly lower than that of Atlantic; SOD activity of 01-6 and 01-47 was higher than that of Atlantic. Potato lines 01-6 and 01-47 can be further cultivated to breed new cold-resistant potato varieties.以过量表达亚精胺合成酶基因(SPDS)的马铃薯植株为试验材料,测定了低温胁迫后植株叶绿素、丙二醛和超氧化物歧化酶(SOD)的变化。结果表明:供试植株的叶绿素含量呈下降趋势;01-47的MDA含量显著高于大西洋,01-6和01-49的MDA含量显著低于大西洋;01-6和01-47的SOD活性高于大西洋。可对01-6和01-47进行下一步的培育锻炼,争取培育出新的抗寒马铃薯品种。

关 键 词：POTATO Low temperature stress Physiological indexes 

分 类 号：S532[农业科学—作物学]