草业学报2016，Vol.25Issue(5)：60-68,9.DOI:10.11686/cyxb2015343
细叶百合低温解除休眠过程中鳞茎内糖分及相关酶的研究
Changes in carbohydrate status and related enzymes of Lilium pumilum bulbs during breaking dormancy under refrigerated conditions
摘要
Abstract
The changes in carbohydrate levels and related enzyme activities during breaking dormancy under low temperature were studied in Lilium pumilum .Sugar metabolic activity was strong during breaking dormancy and the starch content of bulbs decreased,while amylase activity remained high.The concentration of soluble sugars peaked at 60 d of storage.In the early phase of storage,the sucrose content,and the activities of su-crose synthase (SS)and sucrose phosphate synthase were rising,synergistically controlling sucrose metabolism and transport.Under refrigeration the metabolism of starch to soluble sugar promoted an increase in AGPase activity.The functions and changes of enzymes involved in starch metabolism in different parts of the bulb were different.There were significantly or very significantly positive correlations of total soluble sugar content with the contents of sucrose and glucose,and the activities of starch phosphorylase,SS,and alpha and beta amylases in different parts of bulbs.Sugar metabolism was the primary metabolic activity for breaking dorman-cy of bulbs.关键词
细叶百合/鳞茎/休眠/冷藏/糖类化合物Key words
Lilium pumilum/bulb/dormancy/cold storage/sugar引用本文复制引用
刘芳,陈业雯,李丹丹,廉华,吴瑕,杨瑾,李雨琦,谢守峰,陈学武..细叶百合低温解除休眠过程中鳞茎内糖分及相关酶的研究[J].草业学报,2016,25(5):60-68,9.基金项目
黑龙江八一农垦大学大学生创新创业训练计划项目（XC2015001），黑龙江八一农垦大学‘校内培育课题资助计划’（XZR2015-01）和黑龙江省农垦总局科技攻关项目（HNK125BZD-02-17）资助。 （）
