摘要
镉(Cd)是非必需的有毒元素,是农业环境和农产品的重要污染物,因此,Cd的毒性效应已成为国内外研究的热点。实验研究手段主要有滤纸法、水培法、土壤栽培,以发芽率、叶绿素含量、生物量为毒理学指标探讨Cd胁迫对油菜、白菜和萝卜的毒性效应。采用SPSS进行统计分析得出,植物生长指标与对照相比差异明显,且呈现明显的剂量-效应关系,其中叶绿素和根长变化幅度较大,表明这两种指标较为敏感,可以作为生物标志物诊断Cd毒性。
Cadmium（ Cd） is non-essential but toxic element. It is an important agricultural pollutant in environment and farm product. Therefore,toxicity effect of Cd has become a hot research at home and abroad. Research methods mainly contain the filter paper culture,hydroponics,soil culture. We choose germination rate,chlorophyll content,growth indexes as toxicological indicators to explore Cd stress tolerance and toxic effects on rape,Chinese cabbage and radish. Using SPSS for statistical analysis,we find that the growth indexes are significantly different compared to the control,and show a clear dose-response relationship between Cd pollution and toxicity. Among these indexes,Chlorophyll and root length change by a big margin,indicating that these two indicators are more sensitive,which can be used as biomarkers to diagnosis Cd toxicity.
出处
《山东化工》
CAS
2017年第4期162-164,共3页
Shandong Chemical Industry
基金
2016年国家级大学生创新创业训练计划项目(G2016-35)
吉林师范大学第十五批大学生科研基金(15321)
关键词
镉胁迫
重金属
毒性效应
叶绿素
cadmium stress
heavy metal
toxic effect
chlorophyll
