摘要
以中嘉早17号为材料,采用水培试验方法,研究水稻超氧化物歧化酶(SOD)活性和丙二醛(MDA)含量在不同浓度Cd胁迫下的变化,并探讨了其与水稻糙米Cd含量的相关性。结果表明,在水稻发育过程中,SOD活性和MDA含量与Cd胁迫浓度呈正相关。SOD活性变化趋势为分蘖期>乳熟期>孕穗期;MDA含量变化趋势为分蘖期>孕穗期>乳熟期,且水稻主要时期叶片SOD活性和MDA含量与糙米Cd含量均呈显著正相关。
This study investigated the relationships of superoxide dismutase(SOD) activity and malondialdehyde(MDA) content with the Cd contents in brown rice under the stress of different concentrations of Cd through hydroponic experiments using Zhongjiazao 17 rice cultivar. The results showed that the SOD activity and MDA content are positively correlated with the Cd stress concentration during the whole growth stage. The SOD activity followed the order of tillering stage > milking stage > booting stage, while the MDA content followed the order of tillering stage > booting stage > milking stage. Moreover, the SOD activity and MDA content had significant positive correlation with the brown rice Cd contents.
作者
彭鸥
叶长城
刘玉玲
李丹阳
刘寿涛
罗海艳
铁柏清
Peng Ou;Ye Changcheng;Liu Yuling;Li Danyang;Liu Shoutao;Luo Haiyan;Tie Baiqing(College of Resources and Environment,Hunan Agricultural University,Changsha 410128,China;Engineering Research Center for Water Pollution Purification of Irrigation Source in Hunan Province,Changsha 410128,China;Key Laboratory of Southern Original Agro-Environmental Pollution Prevention and Control,Ministry of Agriculture and Rural Affairs,Changsha 410128,China)
出处
《生态毒理学报》
CAS
CSCD
北大核心
2019年第6期233-240,共8页
Asian Journal of Ecotoxicology
基金
国家重点研发计划“中南镉砷污染农田综合防治示范与技术规范构建”项目(2017YFD0801505)
长沙市科技计划项目(kq1801025)。
