林业科技开发Issue(5)：49-52,4.DOI:10.13360/j.issn.1000-8101.2014.05.011
杉木体胚再生植株低温胁迫的响应机制
The response mechanism on cold stress of Cunninghamia lanceolata somatic embryogenesis plantlets
摘要
Abstract
To study the effect of low temperature treatment on Cunninghamia lanceolata growth,and explore the response mechanism of low temperature stress,the dynamic changes of the physiological and biochemical indexes associated with low temperature response was investigated on peroxydase( POD ) activity, content of free praline, soluble sugar and malonaldehyde(MDA)in 4 ℃ low temperature. The results showed that,low temperature stress caused that POD activity and soluble sugar content initially rose and then dropped soon,and the content of free praline and MDA kept increasing. Which illustrated that a strong activity of POD,a high concentration of free praline and soluble sugar could improve resistant to low temperature of C. lanceolata,while the cell membrane was damaged,which induced a lot of the final product of lipid peroxidation(MDA)accumulation.关键词
杉木/低温胁迫/过氧化物酶/游离脯氨酸/可溶性糖/丙二醛Key words
Cunninghamia lanceolata/cold stress/POD/free praline/soluble sugar/MDA引用本文复制引用
曲弈,吴华,施季森,郑仁华,王鹏凯,陆叶,陈金慧..杉木体胚再生植株低温胁迫的响应机制[J].林业科技开发,2014,(5):49-52,4.基金项目
江苏省高校自然基金项目（编号13KJA220001）；教育部新世纪优秀人才支持计划（编号NCEF120734）；江苏高校优势学科建设工程资助项目（PAPD）。 （）
