摘要
目的:作者通过三七种子后熟生理特性的研究,以了解种子内部的生理生化变化规律,为三七种子的种源保存和育种研究奠定基础。方法:利用常规的生理生化测定方法对三七种子后熟过程中的贮藏物质含量、呼吸速率、酶活性等进行动态测定。结果:层积过程中三七种子的呼吸速率呈持续上升趋势,淀粉、可溶性蛋白和粗脂肪含量随种胚的发育逐渐下降,可溶性糖含量则逐渐增加,CAT,POD,SOD的活性随MDA含量的升高而上升。结论:三七种子的生理生化变化过程与种胚的形态发育过程相互配合共同完成其后熟发育。
Objective： The studies were carried out on the physiologic characteristics of Panax notoginseng seeds during the after-ripening process in order to understand the seed′s biochemical and physiological changes and lay the foundation for the germplasm conversation and breeding research of P.notoginseng seeds.Method： Dynamic changes of storage material contents,respiratory rate and protective enzymatic activity were determined by normal biochemical and physiological measuring methods.Result： The respiratory rate increased continuously during the stratification process,the contents of starch,soluble protein,crude fat decreased and the content of water-soluble saccharide increased with the embryo development,activities of CAT,POD and SOD increased with the raise of MDA content.Conclusion： P.notoginseng seed′s biochemical and physiological changes interacted with its embryo morphological changes to complete its after-ripening development.
出处
《中国中药杂志》
CAS
CSCD
北大核心
2010年第20期2652-2656,共5页
China Journal of Chinese Materia Medica
基金
国家自然科学基金项目(30760116)
云南省自然科学基金项目(2007C204M)
关键词
三七种子
后熟发育
贮藏物质含量
呼吸速率
酶活性
Panax notoginseng seeds
after-ripening development
storage material contents
respiratory rate
enzymatic activity
