PEG6000渗调处理对茎瘤芥老化种子膜透性的影响  

Effects of PEG6000 Osmotic Conditioning Treatment on Aged Seeds Membrane Permeability of Stem Tumorous Mustard

作　　者：徐亚丽[1] 王慧超[1] 郑美娜[1] 陈维[1] 杨小容[1] 向邓云[1] 

机构地区：[1]长江师范学院生命科学与技术学院,重庆408100

出　　处：《安徽农业科学》2009年第26期12476-12477,共2页Journal of Anhui Agricultural Sciences

基　　金：长江师范学院学生科学技术研究项目(07xky25);重庆市教委科学研究项目(KJ081308)

摘　　要：[目的]分析PEG6000渗调处理对茎瘤芥老化种子膜透性的影响。[方法]使用不同浓度PEG6000(5%、10%、15%、20%、25%、30%、35%),以不同的时间(4、8、12、16、20、24 h)处理茎瘤芥老化种子后,测定种子浸泡液相对电导率。[结果]与对照相比,不同浓度PEG6000以不同时间处理茎瘤芥老化种子后,种子的膜透性均显著下降。[结论]25%的PEG6000处理12 h,种子膜透性降幅最大,效果最佳。[ Objective ] The aim was to study the effects of PEG6000 osmotic conditioning treatment on aged seeds membrane permeability of stem tumorous mustard. [ Method] The aged seeds of stem tumorous mustard was treated by different concentrations PEG6000 （5%, 10%, 15%, 20%, 25%, 25% , 30%, 35% ） for different hours （4, 8, 12, 16, 20, 24 hours）, and the relative electrical eonductivities of seed soak solution were determined. [ Result ] Compared with the control, the membrane permeability of aged seeds were all decreased remarkably after treatment. [ Conclusion] The aged seeds membranes permeability were significantly decreased by being treated with 25% PEG6000 for 12 hours of which the decreasing amplitude was the biggest and the effect was the best among all treatments.

关 键 词：PEG6000 茎瘤芥 老化种子 膜透性 

分 类 号：S330.2[农业科学—作物遗传育种]