香水梨采后果实中可溶性糖及其代谢酶变化的研究  

Study on the Changes of Soluble Sugar and Its Metabolic Enzymes in Pgrus ussuriensismaxim Fruit

作　　者：张欣[1] 贝盏临[1] 张安东[1] 

机构地区：[1]北方民族大学生物科学与工程学院,银川750021

出　　处：《湖北农业科学》2015年第24期6351-6355,共5页Hubei Agricultural Sciences

基　　金：宁夏科技支撑计划项目(2012);北方民族大学基本科研项目(2015JBK597);国家级大学生创新训练计划项目(201411407037)

摘　　要：以宁夏海原香水梨(Pgrus ussuriensismaxim)为试材,研究采后在(20±0.5)℃下果实中可溶性糖代谢及相关酶活性的变化特征。结果表明,随着贮藏时间的延长,香水梨果实中果糖含量前、中期不断上升后期略微下降;葡萄糖含量先升后降;蔗糖含量逐渐降低,与之对应的蔗糖合成酶(SS)和蔗糖磷酸合成酶(SPS)活性均不断降低,且SS活性均低于SPS。Abstract：The changes of soluble sugar metabolism and related enzyme activity in the fruit of Ningxia haiyuan Pgrus ussurien- sismaxim after （20±0.5）℃ were studied. The results showed that with the storage time extension, fructose content rised in earlier and mid-term stage while declined slightly in later stage; glucose content first increased and then decreased; sucrose content decreased gradually, and the corresponding sucrose synthase （SS） and sucrose phosphatase （SPS） activity were grad- ually decreased and the activity of sucrose synthase were lower than that of sucrose phosphate syntbase.

关 键 词：香水梨(Pgrus ussuriensismaxim) 可溶性糖 蔗糖合成酶 蔗糖磷酸合成酶 

分 类 号：S661.2[农业科学—果树学] TS255.1[农业科学—园艺学]