不同冻害程度对库尔勒香梨抗氧化酶活性的影响  

Effect of Different Degrees of Frost Damage on Antioxidant Enzyme Activity of Korla Pear

作　　者：林彩霞 薛根生[1] 任晓燕[1] 

机构地区：[1]新疆生产建设兵团第二师农业科学研究所,新疆库尔勒841005

出　　处：《北方园艺》2015年第6期15-18,共4页Northern Horticulture

基　　金：国家农业科技成果转化资金资助项目(2012GB2G410531);新疆生产建设兵团第二师农业科技攻关资助项目(2013NYGG10);新疆生产建设兵团科技攻关计划资助项目(2011BA003)

摘　　要：以栽培管理基本相同的库尔勒香梨梨树枝条为试材,检测了不同冻害程度下,11组库尔勒香梨枝条超氧化物歧化酶（SOD）、过氧化物酶（POD）、过氧化氢酶（CAT）的活性,研究冻害程度对抗氧化酶活性的影响。结果表明：不同冻害程度下库尔勒香梨枝条的SOD活性为458.59-589.72U/g,POD活性为2.28-11.56U·g^-1·min^-1,CAT活性为0.50-4.93U·g^-1·min^-1;与无冻害的对照组相比受冻后的枝条SOD活性均有显著性升高,POD与CAT活性受冻前与受冻后无显著性差异变化。The Korla pear tree branches which are cultivated under the same condition were used as materials,the activities of SOD,POD and CAT of 11 groups Korla pear tree branches under various levels of frost damage were tested,antioxidant enzymes activity of Korla pear tree branches under different degrees of frost damage were studied.The results showed that in diverse frost damage levels,the activity of SOD was between 458.59-589.72U/g,the activity of POD was between 2.28-11.56U·g^-1·min^-1,the activity of CAT was between 0.50-4.93U·g^-1·min^-1.Compared with the non-frost damaged ones,the frost damaged ones＇ SOD was apparently in an increasing tendency.However the activities of POD and CAT had no such difference.

关 键 词：库尔勒香梨 抗氧化酶活性 冻害程度 

分 类 号：S661.2[农业科学—果树学]