两种水稻的镉积累能力和生理特性研究  

Study of Cd-accumulating Ability and Physiological Characteristics of Two Rice Cultivars

作　　者：马志强 王培培[2] 孙溪 靳涛 MA Zhi-qiang;WANG Pei-pei;SUN Xi;JIN Tao(Tianjin Agricultural University,College of Food Science and Biological Engineering,Tianjin 300384, China;Tianjin Agricultural University,Educational Administration Office, Tianjin 300384, China;Agro-Environmental Protection Institute, Ministry of Agriculture, Tianjin 300191, China;Tianjin Engineering Research Center of Agricultural Products Processing, Tianjin 300384, China)

机构地区：[1]天津农学院食品科学与生物工程学院,天津300384 [2]农业部环境保护科研监测所,天津300191 [3]天津市农副产品深加工技术工程中心,天津300384 [4]天津农学院教务处,天津300384

出　　处：《天津农学院学报》2017年第4期1-5,共5页Journal of Tianjin Agricultural University

基　　金：中央级公益性科研院所基本科研业务费专项资金(农业部环境保护科研监测所)"不同镉积累能力水稻的生理及分子特性研究"(2016-szjj-wpp);天津市大学生创新创业训练计划项目"两种不同镉积累能力水稻的特性差异研究"(201610061065)

摘　　要：以粳稻品种‘日本晴’的野生型和基因突变体ET-M为材料,进行水培试验,研究其在不同浓度Cd^(2+)胁迫下体内镉积累水平,并比较两种水稻体内的抗氧化酶活性以及两种有机质的含量。结果表明:突变体ET-M相比野生型,其根部和叶片吸收的镉含量都较低,在镉胁迫一定时间后,根部的超氧化物歧化酶和过氧化氢酶活性也相对较低。By the hydroponic experiment,the wild type of Nipponbare cultivar(Oryza sativa,japonica group)and its gene mutant ET-M were detected about their cadmium(Cd)accumulation level after a period of Cd stress,then the activities of antioxidases,as well as the contents of two organic matters were investigated and contrasted the difference between them.The results showed that Cd accumulation in either root or leaf of ET-M was lower than that in the wild type Nipponbare,meanwhile,the activities of superoxide dismutase(SOD)and catalase(CAT)were also lower in the former than the latter under Cd stress.

关 键 词：日本晴 野生型 突变体 镉积累 酶活 

分 类 号：S511[农业科学—作物学]