树莓果实维生素C积累与其合成氧化酶的关系  

Relationship between Vitamin C Accumulation and Synthase or Oxidase Activities of Rubis idaeus Fruit

作　　者：张丙秀[1] 高媛[1] 陈倩[1] 高庆玉[1] 

机构地区：[1]东北农业大学园艺学院,哈尔滨150030

出　　处：《湖北农业科学》2012年第15期3243-3246,共4页Hubei Agricultural Sciences

基　　金：国家公益性行业(农业)科研专项(201103037)

摘　　要：对4个品种的树莓(Rubus idaeus)果实生长过程中还原型维生素C(AsA)、氧化型维生素C(DHA)及总维生素C含量进行了分析,并对L-半乳糖酸-1,4-内酯脱氢酶(GalLDH)、抗坏血酸氧化酶(AAO)及抗坏血酸过氧化物酶(APX)3种酶的活性进行了测定分析。结果显示,AsA和总维生素C含量随着果实的成熟而逐渐上升。4个品种中GalLDH活性与AsA积累之间均呈显著正相关。AAO和APX活性与AsA含量相关性不显著,而APX活性与DHA含量呈显著正相关。说明不同树莓品种间维生素C含量存在差异的原因与其GalLDH及APX活性有关。The ascorbic acid （AsA）, Dehydroascorbic acid （DHA） and total vitamin C content of four raspberry （Rubus i- daeus） varieties were tested during fruit development; and enzyme activities of L-galactono-l,4-1actone dehydrogenase （GalLDH）, ascorbic acid oxidase（AAO） and ascorbate peroxidase（APX） were also measured. The result showed that the con- tent of AsA and vitamin C continually accumulated with the fruit development. GalLDH activity was highly significant positive correlated to ASA accumulation in the four varieties. AAO and APX activity had no significant correlation to AsA; but APX activity was significantly positively correlated to DHA content, which indicated that the difference of vitamin C content in raspberry varieties was related to GalLDH and APX activity.

关 键 词：树莓 维生素C GalLDH AAO APX 

分 类 号：S663[农业科学—果树学] Q564[农业科学—园艺学]