菠菜种子超干贮藏后抗老化作用的生理特性  

Studies on spinach seeds' physiological characteristics of aging-resistance after ultra-dry storage

作　　者：李玉红[1] 陈鹏[2] 王绮[1] 关志华[1] 程智慧[1] 

机构地区：[1]西北农林科技大学园艺学院,陕西杨凌712100 [2]西北农林科技大学生命科学学院,陕西杨凌712100

出　　处：《西北农林科技大学学报（自然科学版）》2005年第8期96-98,102,共4页Journal of Northwest A&F University(Natural Science Edition)

基　　金：国家"十五"科技攻关重大专项(2004BA516A09);西北农林科技大学2004年科研专项(042M083)

摘　　要：从发芽率、保护酶系活性、脱氢酶活性、丙二醛含量和种子蛋白等方面对菠菜种子超干贮藏效果进行了研究.结果表明,超干贮藏可以提高种子的抗老化劣变能力.菠菜种子含水量为3.3%～5.4%时,表现出较强的抗老化和劣变能力及较好的耐藏性.超干和老化处理后菠菜种子的SOD,POD,CAT和脱氢酶活性显著高于原始含水量种子,而丙二醛含量显著低于原始含水量种子.不同含水量菠菜种子的SDS-PAGE蛋白质谱带无显著差异.Spinach seeds were used to investigate the ultra-dry effect of aging-resistance. The results showed that ultra-dry seeds became more tolerant to aging conditions. When spinach seeds were dried to about 3.3%-5.4% of moisture content ,they became more tolerant to aging and were easier to store. Under the same aging condition ,the activity of SOD, POD,CAT and dehydrogenase of ultra-dry seeds were higher while Malonadehyde （MDA） were lower than seeds with original moisture content. The protein of SDS-PAGE bands were almost the same in spinach seeds of different moisture content.

关 键 词：菠菜种子 超干贮藏 SOD POD CAT 脱氢酶 丙二醛 SDS—PAGE 

分 类 号：S636.102.4[农业科学—蔬菜学] Q946[农业科学—园艺学]