文献类型：期刊文献

中文题名：盐胁迫对柳树新品系的抗氧化酶活性及过氧化物含量的影响

英文题名：Effect of Salt Stress on Activities of Antioxidant Enzymes and Superoxide Contents of New Willow Clone

作者：刘铎[1] 丛日春[1] 党宏忠[1] 李庆梅[2] 刘艳[2] 巩云峰[1]

第一作者：刘铎

机构：[1]中国林业科学研究院荒漠化研究所,北京100091;[2]中国林业科学研究院林业研究所国家林业局林木培育重点实验室,北京100091

年份：2014

卷号：33

期号：10

起止页码：20-23

中文期刊名：种子

外文期刊名：Seed

收录：CSTPCD;;北大核心:【北大核心2011】；CSCD:【CSCD_E2013_2014】；

基金：中央级公益性科研院所基本科研业务费专项资金(编号:CAFYBB 2)

语种：中文

中文关键词：柳树;盐胁迫;抗氧化酶;过氧化物

外文关键词：willow ; salt stress ; antioxidant enzymes ; peroxide

分类号：S792.12

摘要：以3种新培育的柳树新品系当年生种条为试验材料,研究在不同NaCl浓度盐水(0 mmol/L、25 mmol/L、50 mmol/L、100 mmol/L、150 mmol/L、200 mmol/L)灌溉胁迫20 d后,柳树叶片的抗氧化酶活性及过氧化物含量变化。结果表明:3种柳树的SOD活性变化数盐柳1号变化最大,随着盐浓度的增大而增大,最高值为对照的1.54倍,而其它2种柳树均随着盐浓度的增大呈先升后降的变化趋势,渤海1号与渤海5号的最大值分别出现在盐浓度为150 mmol/L和100 mmol/L时,分别为对照的1.33倍和1.09倍。POD活性随着盐浓度增加呈先升后降的变化趋势,以盐柳1号的变化幅度最大,最高峰值为对照的2.14倍;CAT活性随着盐浓度增加呈先升后降的变化趋势,以渤海5号变化幅度最大,为对照的1.94倍,但是盐柳1号的活性最大。MDA含量随着盐浓度增加呈缓慢下降而又迅速升高的变化趋势,以盐柳1号在高盐浓度下MDA含量最少。从以上反应变化的趋势上看,3种耐盐柳树中盐柳1号耐盐性最好。
In this paper,three new willow clones was used as test materials,Studying on the effect of different NaCl stress on the antioxidant Enzymes and Superoxide Contents of new willow clones after 20 days.The biggest variation of SOD activities of three willow was Yanliu No.1,the SOD activities of Yanliu No.1 was increaed with the increasing of NaCl concentration,the maximum was 1.54 times of the control,but the SOD activities of other two kinds of willow was first up and then down with the increase of NaCl concentration,the maximum of SOD activities of two kinds of willows was 1.33 and 1.09 times of the control respectively when the concentration of NaCl was 150 mmol/L and 100 mmol/L.The activities of POD increasing at first and then decreaseing as the NaCl concentration increasing,the maxium of Yanliu No.1.was the 2.14 times of the control ; the activities of CAT was low as the low NaCl concentration,and then raising as the NaCl concentration was high,the variation of the Bo HaiNo.5 was maximum.But the activities of Yanliu No.1 was maximum.The contents of MDA of willow decreasing as the NaCl concentration was low then raising as the NaCl concentration was high.And the content of MDA of Yan Liu No.1 was minimum.In the conclusion in the three willows the tolerance of salt stress of Yanliu No.1 was best.