PEG对甘薯愈伤组织淀粉酶活性的影响  

PEG Regulation about Expression of Amylase in Calli of Sweet Potato

作　　者：龚子端[1] 童晋[1] 张勇为[1] 吕玉华[1] 纳海燕[1] 

机构地区：[1]四川大学生命科学学院,四川成都610064

出　　处：《云南植物研究》2005年第1期66-70,共5页Acta Botanica Yunnanica

摘　　要：用聚乙二醇 (PEG) 6 0 0 0对甘薯愈伤组织进行处理后观察到其所含淀粉酶的活性变化。这些变化随PEG的浓度不同 ,处理时间长度不同而有显著差异。低浓度的PEG(0 5 %、 1% )处理愈伤组织其淀粉酶活性变化的幅度较小 ;而高浓度 (8% )的PEG处理所引起的淀粉酶活性变化幅度较大 ;这一结果显示了PEG对甘薯愈伤组织淀粉酶的调节作用。The alteration of amylase' activity was found distinctly when calli were treated with different concentration PEG6000.Under the low concentration PEG(0.5%、1%),the scope of amylase' activity was changed a little.On the contrary,when calli were treated with higher concentration PEG the activity of amylase was altered in wide scope.This consequence reveals the PEG regulation about expression of amylase in calli of sweet potato.

关 键 词：甘薯 愈伤组织 淀粉酶 PEG 

分 类 号：S531[农业科学—作物学]