文献类型：期刊文章

作　　者：宋新华[1] 王凯[1] 郭蕾蕾[2] 赵凤云[1]

机构地区：[1]山东理工大学生命科学学院,山东淄博255049 [2]淄博市科学技术情报研究所,山东淄博255040

出　　处：《Agricultural Science & Technology》

基　　金：Supported by National Natural Science Foundation of China(30671126)~~

年　　份：2011

卷　　号：12

期　　号：9

起止页码：1256-1259

语　　种：中文

收录情况：CAB、CAS、CSA、CSA-PROQEUST、PROQUEST、普通刊

摘　　要：[Objective] The research aimed to study the correlations between catalase（CAT） and ascorbate peroxidase（ASP） and the growth and development of rice roots under cadmium stress.[Method] Taking rice variety Zhonghua No.11 as materials,the changes of rice seedlings under the treatment conditions of Cd,Cd＋CAT inhibitor,Cd＋APX inhibitor were studied.[Result] Under Cd stress,inhibition of CAT activity caused the significant inhibition on the growth of aerial parts,decreased the number of adventitious roots and lateral roots,but it can significant promote the elongation growth of adventitious roots and lateral roots.Moreover,the length of the first lateral root from root tip on the primary roots and adventitious roots was also increased than control.When APX activity was inhibited,the growth changes of rice were similar with that treated by CAT inhibitor.[Conclusion] CAT and APX may play important roles in the regulation of rice root system growth in both non-stress and Cd-stressed rice

关 键 词：Cd stress  CATALASE Ascorbate peroxidase  

分 类 号：S511]