盐胁迫对不同种源墨西哥柏幼苗SS·SP·POD的影响  

Effects of Salt Stress on Different Provenances of Cupressus lusitanica Seedlings SS,SP,POD

作　　者：张英团[1] 万福绪[1] 娄晓瑞[1] 冷慧梅[1] 

机构地区：[1]南京林业大学森林资源与环境学院,江苏南京210037

出　　处：《安徽农业科学》2013年第11期4881-4883,4939,共4页Journal of Anhui Agricultural Sciences

基　　金：国家林业局"948"工程项目(lysx[2012]10)

摘　　要：[目的]为墨西哥柏在我国成功引进和扩大繁育提供理论基础。[方法]在室内模拟盐分胁迫条件,探讨10个不同种源墨西哥柏种子萌发苗的可溶性糖(SS)、可溶性蛋白(SP)和过氧化物酶(POD)含量的变化规律。[结果]在整个胁迫过程中,随着盐胁迫时间的延长,10个种源墨西哥柏可溶性糖含量和氧化物酶活性总体上呈下降趋势,而可溶性蛋白含量总体上呈上升趋势,下降和上升的过程中都有波动;另外,在低盐分(T1、T2、T3)梯度下,随着盐胁迫时间的增加,可溶性糖、可溶性蛋白和过氧化物酶活性的变化规律与对照组相似且变化不大,但在低盐分(T4、T5)梯度下出现了差异。[结论]盐胁迫对不同种源墨西哥柏苗木可溶性糖、可溶性蛋白和过氧化物酶活性有显著影响。[Objective]Provide theoretical basis for the Cupressus lusitanica in China′s,successful introduction and expansion of breeding.[Method]Study the change of POD,soluble protein（SP） and soluble sugar content in the seeds sprout of 10 different provenances Cupressus lusitanica under indoor simulation salt stress conditions.[Result]The accumulation of soluble sugar and oxide activity of 10 different provenances C.lusitanica generally decreased along with the prolonging of stress in the entire stress process.While the soluble protein content increased in general,there’s a fluctuations under the fall and rise.In addition,the variation of soluble sugar,soluble protein and peroxidase activity are similar to the control group,there’s little change along with the prolonging of salt stress,under the low salinity gradient（T1,T2,T3） condition.But in low salinity（T4,T5） gradient condition there’s an obviously differences.[Conclusion]Salt stress could obviously affect the contents of soluble sugar,soluble protein and peroxidase activity in needles of C.lusitanica seedlings.

关 键 词：墨西哥柏 盐胁迫 可溶性糖 可溶性蛋白质 过氧化物酶 

分 类 号：S791.41[农业科学—林木遗传育种]